L2 @              // 2p (1/1)
F U D' (B')       // pseudo 2x2x2 on DBL + lots of pairs (3+1/5)
(U2 D R2 D' L)    // F2L-1p on B-DR (5/10)
(D' F' D)         // sq on F + EO on UD-axis (3/13)
(F R F' R' F')    // all but 3c (5/18)
@ = [L2, U' R' U] // insert 3c comm (8-2/24)

(B) U F2 L2 F       // EO on FB-axis (1+4/5)
(L2 R @ F2 R2 B2 D) // 2x2x3-1e on DL-FL (6/11)
(D' F2 D)           // edge on FL + sq on U (3-2/12)
U' R' U R U' R'     // ZBLS + EP-skip, leaving 3c on R (6/18)
@ = [R', F L' F']   // insert 3c comm (8-3/23)

F' D' U2 F'              // sq on U (4/4)
(R2 U2)                  // 2x2x2 on FR (2/6)
(L' D B L' D' B @ D' L2) // F2L on U, leaving 3c on D (8/14)
@ = [B', D F' D']        // insert 3c comm (8-5/17)
============================================================
backup solution:
(D2 U % F L')       // EO on LR-axis (4/4)
(U2 D2 B F2 U' B)   // X-Cross on B\UR + corner on DBL (6/10)
(L' D2 L' D2 L)     // F2L-1p on B-UL using a conj (5/15)
(F L F D F D' L')   // alt ZBLS, leaving 3c on F (7/22)
% = [U', F L' F' L] // insert 3c comm (10-6/26)

L2 D2 U' L2 F D B2 (D') // 2x2x3 on BL (7+1/8)
(R2 F' R F')            // F2L-1p on L-DF (4/12)
(F' R' F @ R' D R D' R) // all edges, leaving A-Perm on D (8-1/19)
@ = [F', R B R']        // insert 3c comm (8-5/22)

(F' D2 L2 D')        // Cross-1 on L-F (4/4)
(D' R' D)            // pair on DBl (3-1/6)
(R')                 // EO on LR-axis (1/7)
(U' F B U @ F' U B') // F2L-1p on L-UB (7/14)
(B' D B' D' B2 R2)   // all edges, leaving 3c (6-1/19)
@ = [U' B' U, F2]    // insert 3c comm (8-5/22)

(U B R' F D')     // 2x2x2 on DFL (5/5)
(U' B2 R @ B R2)  // 2x2x3 on DF (5/10)
@ = R U2 R'       // insert for EO on LR-axis (3-1/12)
(B U')            // pseudo F2L-1p on F-UR (2/14)
(B2 U' B # U2)    // all edges, leaving 2c2c (4/18)
# = [B' U B, D]   // insert 3c comm (8-5/21)

rewrite: U2 D B' U B D' B U B' $ R2 B' R U2 R2 B2 U D F' R B' U'
$ = [B U' B', D'] // insert 3c comm (8-7/22)

R' U B2 U' F'   // 2x2x2 on DFL (5/5)
(B R' U2 B U')  // 2x2x3 on FL (5/10)
(D B' D')       // EO on UD-axis (3/13)
(B $ R B)       // all edges, leaving seperable 3c+2tc (3/16)
$ = [B' D B, U] // insert 3c comm to convert 2tc to 3c (8-8/16)

rewrite: R' U B2 U' F' B' R' U B' D B D' B' % U2 R B'
% = [B D B', U] // insert 3c comm (8-7/17)

rewrite: R' U B2 U' F' B' R' U B' D U @ B D' B' U R B'
@ = [D F' D', B'] // insert 3c comm (8-2/23)

(L' U2 D2 R B' U') // pseudo XX-Cross on L\B (6/6)
R2 U               // fix pseudo (2/8)
(F D R2 D' F')     // 3rd pair on UFl, giving F2L-1c on L-DF + EO on UD-axis (5/13)
(R F' R F)         // sq on R using 2-gen (4/17)
(R2 F' R F R2)     // direct finish using 2-gen (5/22)
============================================================
backup solution:
(B2 R' B2)         // sq on L (3/3)
(L D2 L2)          // 2x2x2 on DFL (3/6)
(R' B')            // sq on Bdl, giving XX-Cross on L\D (2/8)
(B' R' B U R @ U') // 3rd pair on UBl (6-1/13)
(U' R U F R F')    // all corners, leaving 3e (6-1/18)
@ = R' U' R U D' F' U F D U' // insert 3e comm (10-5/23)

final: F R' F' U' R' U' D' F' U' F D U' R' B' R B2 R L2 D2 L' B2 R B2

(L' B' R' F)       // EO on FB-axis (4/4)
D2 F2 D2           // 2x2x2 on DBR (3/7)
U' F2 L            // 2x2x3 on DB (3/10)
U2                 // F2L-1p on B-UL (1/11)
U' F' R U' R' U2 F // ZBLS + EP-skip, leaving 3c+1tc, -2 on inverse (7-1-2/15)

skel: D2 F2 D2 U' F2 L U @ F' R U' R' U2 R B L
@ = [U, F' R F R'] // insert 3c comm (10-5/20)

rewrite: D2 F2 D2 U' F2 L U2 F' # R F R' U' R F' U' R' U2 R B L
# = [F, U B U'] // insert 3c comm (8-3/25)

(D' F2 L' F' B') // EO on FB-axis (5/5)
(U' L2 U2 R')    // 2x2x2 on UFR + edge on BR (4/9)
(D2 U' L' D')    // sq on Dbr + 3p (4/13)
(D' L2 D U)      // pair on UBr (4-1/16)
(L' D' L' D L')  // sq on Lub (5/21)
(D' L D L')      // direct finish using Sledge (4/25)

(F2 R F' D B)     // EO on FB-axis (5/5)
(L2 U' L @ U2)    // Cross-1 on L + 2p (4/9)
(R D' L2)         // pseudo XX-Cross on L\U + 1p (3/12)
(D R D' R L)      // all but 3c (5/17)
@ = [R2, U' L' U] // insert 3c comm (8-1/24)

(L2 R' F R F2)   // pseudo 2x2x2 on UFL (5/5)
U2 L' F U2 F B D // 2x2x3 on FL (7/12)
R' B' R2 B2      // all but 2tc (4/16)

skel: U2 L' F U2 F B D % R' B' R2 B2 F2 R' F' R $ L2
$ = [R' F  R, B] // insert 3c comm (8-7/17)
% = [D' B' D, F] // insert 3c comm (8-4/21)

R' F U L             // EO on LR-axis (4/4)
(B2 D F)             // 2x2x2 on DFL (3/7)
(F' B' U2 F R2)      // 2x2x3 on DF (5-2/10)
(U2 @ B2 U2 B U B U) // all but 3c using 2-gen (7/17)
@ = [U2, R' D2 R]    // insert 3c comm (8-3/22)

L2 F2 L2 U R' D' B D' // X-Cross on R\UB + edge on UF (8/8)
D L2 U2 L' D' L @ U2  // F2L-1p on R-DF (7-2/13)
D' L' D L2 F L' F'    // ZBLS + EP-skip, leaving 3c on L (7/20)
@ = [L' D L D', F2]   // insert 3c comm (10-6/24)

(D' B' D' B2 R' L' U2) // X-Cross on B\UL (7/7)
F D2 F                 // make pair for URb slot (3/10)
R' D F' D2 R           // F2L-1p on B-DR (5/15)
R' F' (R' F')          // rNISS shift for +1p (2-2+2/17)
R D R' D'              // direct finish (4/21)

B F2 L F' (L2)          // 2x2x2 on DFL (4+1/5)
(R' U' B2)              // F2L-1p-1c on L-UB-UF (3/8)
(R2 B U' B')            // EO on FB-axis + sq on U (4/12)
(U2 R' U')              // all edges, leaving 5c (3/15)
(U R U' L' U R' @ U' L) // 3c comm (8-5/18)
@ = [R U R', D']        // insert 3c comm (8-3/23)

F2 D' F' B   // EO on FB-axis (4/4)
R' L' D' R   // 2x2x2 on DFR (4/8)
R' U' R      // -2 bad edges on LR-axis (3-2/9)
D L' D' L' @ // sq on Ldf, giving 2x2x3 on DF + EO on LR-axis (4/13)
U2 B2 U'     // all edges, leaving separable 3c3c (3/16)

@ = L D2 L' U' L # D2 L' U // insert 3c comm ( 8-4/20)
# = [L' U L U', B]         // insert 3c comm (10-6/24)

R F U B D L             // 2x2x2 on DFL + edge on BL (6/6)
U B' U2 @ R U2 B' U2 B2 // F2L-1tc on L-UF (8/14)
U F' U' F               // sq on R using Sledge (4/18)
F R F' R2               // all corners, leaving 3e (4-1/21)
@ = [U2 B2 U2 R2]*2     // insert 3e HTR alg (8-4/25)

// NOTE: first time using this fancy 3e alg

F R2 L (D B2)       // 2x2x3-1e on UB-BL (3+2/5)
U L' U'             // edge on BL (3/8)
(D2 F' R' D R F')   // F2L-1p on U-FL (6/14)
(L D L' F' D2 F D') // all corners, leaving 3e (7/21)

skel: F R2 L U L' U' D F' D2 F L D' L' F R' D' $ R F D2 B2 D'
$ = [D, R F L B] // insert 3e comm (10-9/22)
============================================================
backup solution:
(R2 L2 U' F) // EO on FB-axis + line on UM (4/4)
D' R' L D    // 2x2x2 on DFR + M slice (4/8)
(R B2 R' B2) // pair on BRd, giving F2L-bar on R-U (4/12)
(L2 U2 L U2) // all edges, leaving 5c (4/16)

skel: D' R' L D U2 L' @ U2 L2 B2 R B2 R' F' U L2 R2
@ = [L D L', U']   // insert 3c comm ( 8-4/20)

rewrite: D' R' L D2 U2 L' U' # L D' L' U' L2 B2 R B2 R' F' U L2 R2
# = [U, L B' L' B] // insert 3c comm (10-6/24)

(B D R' B')          // EO on FB-axis (4/4)
(F2 U L' @ R' D' U2) // XX-Cross on F\L (6/10)
(U' B2 U)            // F2L-1p on F-DR (3-1/12)
(R' U' B2 U R B2)    // ZBLS + EP-skip, leaving A-Perm on B (6/18)
@ = [L U L', D2]     // insert 3c comm (8-3/23)

D @ L B F' (F')   // EO on FB-axis (4+1/5)
D' L U2 B2        // 2x2x2 on DBL (4/9)
R                 // pair on DRb (1/10)
(L2 D2 R D2 L2)   // edge on BR using a conj, giving 2x2x3 on DB (5/15)
(F2 R U R')       // all but 3c, -1 on normal (4-1/18)
@ = [D', F' U2 F] // insert 3c comm (8-2/24)

(L B2 R)                   // line on RS (3/3)
(L B' L' B') B             // 2x2x3 on BR (4+1/8)
L F' L F2                  // sq on Fur (4/12)
F2 L2 F2 L' F2 L' F2 L     // L5C alg, leaving 3e+2fe (8-3/17)
(B L B L B L' B' L' B' L') // 3e to convert 2fe to 3e breaking a good edge, -1 on normal (10-7-1/19)

skel: B L % F' L' F2 L' F2 L' F2 L2 B L B L B' $ L2 R' B2 L'
$ = B L' R D' R' L // insert 5e (6-5/20)
% = L R' D' L' D R L' F' L F // insert 3e comm (10-6/24)

(L' U' F D' L2)        // 2x2x2 on DBL (5/5)
(U F2) F               // layer-1c on L-UF + edge on UF (2+1/8)
(F U2 R F' @ R' U2 F') // edge from UB to DF + edge from RD to UB, giving F2L-1c on L-UF (7-1/14)
(F R F' R F R2 F' R')  // all but 3c using Sune (8-2/20)
@ = [F R F', L]        // insert 3c comm (8-3/25)

// NOTE: found ~5 mins after running out of time

// ran out of time :(

(L U' R2 F)       // EO on FB-axis (4/4)
U L2 D L'         // 2x2x2 on DFL (4/8)
L U' L' U B2      // 2x2x3 on DL (5-2/11)
R2 U' R2 U2       // F2L-1p on L-UF (4/15)
R U' R' @ U       // F2L on L, leaving 3c on R (4/19)
@ = [R U2 R', D'] // insert 3c comm (8-3/24)

L' U2 D L2 D2      // 2x2x2 on DBR (5/5)
L F                // sq on Ufr + 1p (2/7)
U2 L' F2 L' @ U    // sq on L + 2p (5/12)
F L2 U L           // F2L on D + EO (4/16)
L' U' L U' L' U2 L // EP using Sune, leaving 3c (7-5/18)
@ = [L F2 L', B']  // insert 3c comm (8-5/21)

(U F @ B2 D)     // EO on UD-axis (4/4)
(R L U2 F)       // 2x2x2 on DFR (4/8)
L2 B' U2 B2      // 2x2x3 on DR (4/12)
U2 L' U2         // F2L on R + OLL-skip, leaving A-Perm on L (3/15)
@ = [U2, B' D B] // insert 3c comm (8-1/22)

R' D L @ R2 B2       // 2x2x2 on UBR (5/5)
@ = U'               // insert for edge on UF (1/6)
L2 F L2 # F L2 F2 L' // 2nd pair on FRu using 2-gen (7/13)
# = D2               // insert for edge on BL (1/14)
F' % D2 F D          // sq on Dfr (4/18)
D L D' L'            // all edges + F2L on R instead, leaving 3c on L (4-1/21)
% = [F, D B D']      // insert 3c comm (8-3/26)

D' B' R' L' B'      // 2x2x2 on DBL (5/5)
(@ U2 R2 D' F D R') // 2x2x3 on DB (6/11)
@ = F2              // insert ext for EO on LR-axis (1/12)
(F U2 F2 U' F')     // all but 3c using 2-gen (5/17)

skel: D' B' R' L' B' F U F2 U2 F' R D' F' D R2 U2 # F2
# = [U2, R D2 R']   // insert 3c comm (8-3/22)

(D2 R U F' D2 U2 B) // 2x2x2 on UBR (7/7)
L'                  // EO on LR-axis (1/8)
F' L2               // 2x2x3 on UB (2/10)
D2 F' D F @ D F' D' // 2x2x3 on DF using 2-gen, leaving 2c2c (7/17)
[D F2 D', B']       // 3c comm, -3 on inverse (8-3-3/19)
@ = [F' D' F, U]    // insert 3c comm (8-6/21)

(R U F U2 B')   // Cross on R (5/5)
(B U B2 U' B')  // 1st pair on UBr using a conj (5-3/7)
B' U' L' U @ B  // set up UFr+DFr pairs (5/12)
B' F2 U' F2 U B // F2L-1p on R-DB (6-2/16)
B' U' L' U B    // 2p using a conj (5-4/17)
B' L' B L       // all corners, leaving 3e (4-2/19)
@ = U' L U L R' F' L' F L' R // insert 3e comm (10-6/23)

(F2 U F2)           // 2x2x2 on DFL (3/3)
(F' B @ U' B2 F)    // 2x2x3 on DL (5-1/7)
(R' U' F' U F %)    // F2L-1e on D-BR (5/12)
(U2)                // all corners, leaving 5e (1/13)
@ = [R2 : #]        // insert conj for below (2/15)
# = U' R L' B L R'  // insert 5e (6-1/20)
% = F' U2 F B' R2 B // insert 3e (6-3/23)

B U2 L F2 R     // EO on LR-axis (5/5)
(B D R2)        // pseudo 2x2x2 on DBR (3/8)
(F2 U F @ D')   // XX-Cross on R\F + X-Cross on D\FR (4/12)
R' U' L2 U R    // corner on DBR using keyhole (5-2/15)
B' U B U' L2    // all edges, leaving 3c (5/20)
@ = [F' U F, D] // insert 3c comm (8-4/24)

U' B R2       // sq on D (3/3)
(D)           // sq on B + 1p (1/4)
L D L' D2     // 2x2x2 on DFL + 1x2x3 on B (4/8)
B' (B)        // F2L-1p on D-FR (1+1/10)
B2 U' (B2 U') // shift to set up 2c2c (2-1+2-1/12)
R2 B R' B' R' // all corners, leaving 3e (5/17)
[R B L F, U]  // 3e comm, -2 on inverse (10-4-2/21)
============================================================
backup solution:
(D B2 D R2)             // 2x2x2 on DFR (4/4)
(B' U2)                 // Cross on R + 1c + 1e (2/6)
(B2 L2 B @ L U L B2 U') // F2L-1p on R-UB (8/14)
(L B L' B' L2)          // F2L on R + CLL-skip, leaving 3e on L (5/19)
@ = B2 L R' U2 R L'     // insert 3e (6-3/22)

B' R2 U F2 (U2)       // 2x2x2 on UFL (4+1/5)
D2 R' B               // 2x2x3 on UL (3/8)
D' @ F D2 F' D2       // F2L on L using 2-gen (5/13)
D B R B' R' D' R'     // CLL, leaving 3e on R (7-1/19)
@ = [D B : #]         // insert conj for below (4-3/20)
# = [R', B' D' F' U'] // insert 3e comm (10-5/25)

D' F' R U2 B @ U  // X-Cross on B\UR (6/6)
D R F R2 D' R     // 2nd pair on DRb (6/12)
U' (U')           // shift to give F2L-1p on B-DL (1+1/14)
F2 L' F L         // all edges, leaving A-Perm on D (4/18)
@ = [F2, D B' D'] // insert 3c comm (8-2/24)

(L' F' B' R)           // EO on LR-axis (4/4)
(F' L2 F' U' D' F' B2) // XX-Cross on U\R (7/11)
(F' B D' B' F)         // 3rd pair on BLu (5-2/14)
(F' D2 F)              // all edges, leaving 5c (3-2/15)
(F' D B D' F D B' D')  // 3c comm (8-3/20)

skel: D B D' F' D B' D B D B F2 @ D U F L2 F R' B F L
@ = [B', U F2 U'] // insert 3c comm (8-4/24)

(D' L2 B' D' R2 F2 L2) // nifty X-Cross on U\BL + 2p for F2L (7/7)
B' D' L D2 L' B        // F2L-1p on U-FR (6/13)
F2 L' F' L $ F'        // all edges, leaving 2c2c (5/18)
$ = [L' F L, B']       // insert 3c comm (8-8/18)

rewrite: B' D' L D2 L' B F2 B' L' F' L B F' L2 F2 % R2 D B L2 D
% = [F2, R' B' R] // insert 3c comm (8-3/23)

R' L2 B2 U R' D' F' // X-Cross on F\DL + 1c + 1e (7/7)
D' R D @            // make 1x1x3 bar for FR (3/10)
U2 R U2 R'          // F2L-1p on F-UL + sq on B (4/14)
B2 U' L U L' B2     // all edges, leaving 3c (6/20)
@ = [D' R' D, L2]   // insert 3c comm (8-6/22)

L U F'            // EO on FB-axis (3/3)
(U D' L2 F2 D' L) // 2x2x3-1c on BL-U + 3p (6/9)
U' @ R F2 R' F2 U // all corners, leaving 3e (6/15)
@ = U R' U' R2 L2 D R D' L2 R2 // insert 3e comm (10-3/22)
============================================================
backup skel:
(U B2)                // pseudo 2x2x2 on UBR (2/2)
(L2 D' R)             // 2x2x2 on DBR (3/5)
F U L2 F' U L'        // 2x2x3 on DB + EO on LR-axis (6/11)
U' F2 U2 F2 # U2 F U' // all edges using 2-gen, leaving 2c2c (7/18)
                      // insertions found after submitting:
[U F' U', B']         // 3c comm (8-5/21)
# = [F2, U B U']      // insert 3c comm (8-6/23)

(B2 R D2 F)      // EO on FB-axis + 2p (4/4)
(U' R D2 F2 R')  // X-Cross on U\FR (5/9)
D2 R D' $ R'     // 2nd pair on BRu (4/13)
L D L2 D2 L      // all edges using 2-gen, leaving 3c+1tc (5/18)
[B, R F2 R']     // 3c comm, -4 on inverse (8-4/22)
$ = [D R' D', L] // insert 3c comm (8-7/23)

R B' U F' (B')   // EO on FB-axis (4+1/5)
R2 F2 R F2 (@ R) // 2x2x3 on DF (4+1/10)
@ = L U L'       // insert for EO on LR-axis (3/13)
(U' B2 U2 B2)    // all edges, leaving 5c (4/17)

skel: R B' U F' R2 F2 R $ F2 B2 U2 B2 U R' % L U' L' B
% = [F', L U' L' U] // insert 3c comm (10-6/21)
$ = [R' F2 R, B]    // insert 3c comm ( 8-6/23)

U L' U D' F2 R2 B' // pseudo XX-Cross on B (7/7)
(L R')             // premoves to fix pseudo (2/9)
D F2 D'            // 3rd pair on DLb (3/12)
D U F' U' F D'     // ZBLS, giving F2L on B (6-2/16)
F'                 // all edges, leaving 3c on F (1/17)
[F D F', U']       // 3c comm to finish (8-7/18)

(L' B U2 F)     // EO on FB-axis (4/4)
R2 F2 R2 U D R' // XX-Cross on R\U (6/10)
(L D L D')      // 3rd pair on DBr + sq on L (4/14)
(L2 D' L' D)    // all edges, leaving 2c2c (4/18)
([D2, R U' R']) // 3c comm, -4 on normal (8-1-4/21)

skel: R2 F2 R2 D R' D2 R U R' D L @ D L2 D L' D' L' F' U2 B' L
@ = [L', D' R' D] // insert 3c comm (8-6/23)

R2 L' U2 F L2 U F' // 2x2x2 on DFL + edge on FR (7/7)
F R F'             // Cross on F (3-2/8)
(R' U2 R U2)       // 2nd pair on ULf (4/12)
(D' R D R')        // 3rd pair on DRf using Sledge (4/16)
(U' B2 U B)        // direct solve (4/20)

L' D' U2 L2      // 2x2x2 on UFL (4/4)
R2 B2 @ D        // pseudo 2x2x2 on DBR (3/7)
B D2 B D2 (R)    // F2L-1p on F-UR instead (4+1/12)
(B2 R B R' B')   // all but 3c (5/17)
@ = [B2, D' F D] // insert 3c comm (8-3/22)

U B D2 F U $ F     // pseudo 2x2x2 on DFR (6/6)
(F2 U F')          // fix pseudo with ext (3/9)
(B U2 B U' L)      // sq on Ldf, giving 2x2x3 on DF (5/14)
(U2 B U2 B2 U2 B2) // all edges using 2-gen, leaving 3c+1tc (6/20)
$ = [U', F' D2 F]  // insert 3c comm (8-7/21)

rewrite: U B F U F' D2 F2 B2 U2 B2 U2 B' U2 L' U % B' U2 B' F U' F2
% = [U' L U, R']   // insert 3c comm (8-5/24)

rewrite: U B F U F' D2 F2 B2 { U2 B2 U2 } B' U' R' U' L' U R B' U2 B' F U' F2
{ = S2 // insert slice (2-6/20)
} = S2 // insert slice (2-1/21)

L' D B D' R D2 // 2x2x2 on DFR (6/6)
(L U') F       // pseudo 2x2x3 on DF (2+1/9)
B2 U F'        // 2x2x3 on FR + layer on R + S slice (3/12)
B2 L2 B L2 B2  // direct solve (5/17)

rewrite: L' D B D' R D2 F B2 U F' B2 { L2 B L2 } B2 U L' // (17)
{ = S2 // insert slice (2-3/16)
} = S2 // insert slice (2-2/16)

final: L' D B D' R D2 F B2 U F R2 B R2 F2 U L' // (16)
============================================================
backup solution (found at 24 mins):
L' D B D' R D2          // 2x2x2 on DFR + edge on UR (6/6)
L2 B L2 B2              // F2L-1p on R-UF + sq on L (4/10)
F U2 B' U' B U2 F' U L' // direct solve (9/19)

B' R @ D2 L B' U2 R'      // pseudo 2x2x3 on UF (7/7)
(D R' D2 B2)              // F2L-1p on U-BR (4/11)
(R) R                     // shift for +2p (1+1-2/11)
(F D F' D2)               // all corners, leaving 3e (4/15)
@ = B D2 L2 U2 F U2 L2 D2 // insert 3e alg (8-3/20)

(F' D' B U')         // EO on UD-axis (4/4)
(D2 @ R U2 B' D2 R') // layer-1c on D-BL + edge on FR (6/10)
(R2 D' U' F2 U D R2) // edge on FL + edge on BR using a conj, giving F2L-1p on D-BL (7-1/16)
(U2 B' U2 B)         // F2L on D + CLL-skip, leaving 3e on U (4/20)
@ = U2 R L' B2 L R'  // insert 3e (6-3/23)