Ren, Yibai (1978)vsCao, Qingfeng (2373)1-0
Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation · 89 half-moves · 4/19/2026
AI summary
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Longest thinks
Positions where players took the most time — the arrow shows the move actually played.
Total time White
<1s
Ren, Yibai
Total time Black
2h 20 min
Cao, Qingfeng
Gap
2h 20 min
Cao, Qingfeng used more clock
Breakdown by phase
| Phase | ♔ Ren, Yibai | ♚ Cao, Qingfeng |
|---|---|---|
Opening 15 moves | <1s ≈ — / move | 30 min ≈ 2m 3s / move |
Middlegame 25 moves | <1s ≈ — / move | 1h 48 min ≈ 4m 21s / move |
Endgame 5 moves | <1s ≈ — / move | 1m 27s ≈ 22s / move |
Remaining clock
Time spent per move
Move-by-move details (89 half-moves)
| # | Phase | White | Time | Black | Time |
|---|---|---|---|---|---|
| 1 | Open. | e4 | — | c5 | 12s |
| 2 | Open. | Nf3 | — | Nc6 | 11s |
| 3 | Open. | d4 | — | cxd4 | 7s |
| 4 | Open. | Nxd4 | — | Nf6 | 10s |
| 5 | Open. | Nc3 | — | e5 | 13s |
| 6 | Open. | Ndb5 | — | d6 | 13s |
| 7 | Open. | Bg5 | — | a6 | 9s |
| 8 | Open. | Na3 | — | b5 | 10s |
| 9 | Open. | Nd5 | — | Be7 | 13s |
| 10 | Open. | Bxf6 | — | Bxf6 | 7s |
| 11 | Open. | c4 | — | b4 | 39s |
| 12 | Open. | Nc2 | — | a5 | 13s |
| 13 | Open. | Qf3 | — | h5 | 10 min |
| 14 | Open. | c5 | — | dxc5 | 17 min |
| 15 | Open. | Bb5 | — | Bd7 | 11s |
| 16 | MG | Rd1 | — | Rb8 | 17 min |
| 17 | MG | Bxc6 | — | Bxc6 | 8s |
| 18 | MG | Nce3 | — | b3 | 9m 47s |
| 19 | MG | a3 | — | Bxd5 | 4m 54s |
| 20 | MG | Rxd5 | — | Qc7 | 7m 15s |
| 21 | MG | Nc4 | — | O-O | 34s |
| 22 | MG | O-O | — | Rfd8 | 3m 13s |
| 23 | MG | Rfd1 | — | h4 | 6m 13s |
| 24 | MG | g3 | — | hxg3 | 2m 10s |
| 25 | MG | hxg3 | — | a4 | 46s |
| 26 | MG | Kg2 | — | Qe7 | 3m 53s |
| 27 | MG | Ne3 | — | Rxd5 | 2m 27s |
| 28 | MG | Nxd5 | — | Qe6 | 32s |
| 29 | MG | Rc1 | — | Qd6 | 4m 33s |
| 30 | MG | Rh1 | — | Bg5 | 1m 12s |
| 31 | MG | Qh5 | — | Bh6 | 19s |
| 32 | MG | Qe2 | — | Kf8 | 3m 28s |
| 33 | MG | Qc4 | — | Qc6 | 24s |
| 34 | MG | Rd1 | — | Qb5 | 2m 26s |
| 35 | MG | Qc3 | — | Qe2 | 15s |
| 36 | MG | Qxc5+ | — | Kg8 | 2s |
| 37 | MG | Ne7+ | — | Kh7 | 3m 35s |
| 38 | MG | Qxe5 | — | Rb5 | 1m 52s |
| 39 | MG | Rd5 | — | Rxd5 | 7s |
| 40 | MG | Qxd5 | — | Qg4 | 31 min |
| 41 | End. | Qa8 | — | Bc1 | 38s |
| 42 | End. | f3 | — | Qe6 | 34s |
| 43 | End. | Qg8+ | — | Kh6 | 5s |
| 44 | End. | Qh8+ | — | Kg5 | 10s |
| 45 | End. | Qh4# | — | — |