Koellner, Ruben Gideon (2514)vsKrejci, Jan (2504)1/2-1/2
Queen's Pawn Game: Zukertort Variation · 110 half-moves · 2/28/2026
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
2h 40 min
Koellner, Ruben Gideon
Total time Black
2h 28 min
Krejci, Jan
Gap
12 min
Koellner, Ruben Gideon used more clock
Breakdown by phase
| Phase | ♔ Koellner, Ruben Gideon | ♚ Krejci, Jan |
|---|---|---|
Opening 15 moves | 11 min ≈ 2m 21s / move | 28 min ≈ 3m 32s / move |
Middlegame 25 moves | 1h 49 min ≈ 5 min / move | 1h 30 min ≈ 4m 31s / move |
Endgame 15 moves | 38 min ≈ 2m 46s / move | 29 min ≈ 2m 6s / move |
Remaining clock
Time spent per move
Move-by-move details (110 half-moves)
| # | Phase | White | Time | Black | Time |
|---|---|---|---|---|---|
| 1 | Open. | d4 | — | d5 | — |
| 2 | Open. | Nf3 | — | Nf6 | — |
| 3 | Open. | e3 | — | e6 | 18s |
| 4 | Open. | Nbd2 | — | c5 | 46s |
| 5 | Open. | b3 | — | cxd4 | 1m 15s |
| 6 | Open. | exd4 | — | Bb4 | — |
| 7 | Open. | Bb2 | 53s | Ne4 | — |
| 8 | Open. | a3 | 6m 16s | Bc3 | 9m 55s |
| 9 | Open. | Bxc3 | — | Nxc3 | — |
| 10 | Open. | Qc1 | — | Nc6 | 3m 4s |
| 11 | Open. | Qb2 | 2m 41s | Ne4 | — |
| 12 | Open. | Rd1 | 12s | Nxd2 | 6m 13s |
| 13 | Open. | Rxd2 | — | O-O | — |
| 14 | Open. | Bd3 | — | a5 | 3m 28s |
| 15 | Open. | O-O | 1m 42s | a4 | 3m 20s |
| 16 | MG | b4 | 3m 26s | Ne7 | 2m 9s |
| 17 | MG | Re1 | 3m 41s | Bd7 | 5m 25s |
| 18 | MG | Ne5 | 1m 26s | Be8 | 3m 49s |
| 19 | MG | Re3 | 7m 42s | f6 | 8m 36s |
| 20 | MG | Nf3 | — | Bf7 | — |
| 21 | MG | Rde2 | 5m 37s | Qd6 | 4m 30s |
| 22 | MG | Qb1 | 7m 56s | Ng6 | 4m 20s |
| 23 | MG | g3 | 1m 4s | Rfc8 | 39s |
| 24 | MG | Qe1 | 9m 29s | Nf8 | — |
| 25 | MG | Nh4 | 1m 43s | Qb6 | 2m 18s |
| 26 | MG | Qa1 | 8s | Bh5 | 1m 18s |
| 27 | MG | Re1 | 19s | Rc6 | 48s |
| 28 | MG | f4 | 3m 12s | f5 | 4m 9s |
| 29 | MG | b5 | 7m 9s | Rc7 | — |
| 30 | MG | Qb2 | 2m 15s | Qa5 | 3m 58s |
| 31 | MG | Ng2 | 3m 58s | Rac8 | 1m 57s |
| 32 | MG | Rb1 | 1m 28s | Rc3 | 3m 5s |
| 33 | MG | h3 | 2m 29s | h6 | 1m 58s |
| 34 | MG | Ra1 | 3m 23s | Be8 | 1m 46s |
| 35 | MG | g4 | 4m 53s | Bg6 | 3m 19s |
| 36 | MG | Qb4 | 7m 18s | Qxb4 | 5m 9s |
| 37 | MG | axb4 | — | fxg4 | — |
| 38 | MG | hxg4 | 1m 6s | Bxd3 | — |
| 39 | MG | Rxd3 | — | Rxc2 | 1m 10s |
| 40 | MG | Rxa4 | 30 min | Rb2 | 30 min |
| 41 | End. | f5 | 2m 18s | exf5 | — |
| 42 | End. | gxf5 | — | Nd7 | 6s |
| 43 | End. | Re3 | 10 min | Nb6 | 15 min |
| 44 | End. | Ra7 | 5m 42s | Rc7 | 1s |
| 45 | End. | Re6 | 52s | Nc8 | 1m 26s |
| 46 | End. | Ra8 | 5m 12s | Kf7 | 1s |
| 47 | End. | b6 | 1m 54s | Rc1+ | 1m 11s |
| 48 | End. | Re1 | 7m 22s | Rxe1+ | 5m 3s |
| 49 | End. | Nxe1 | 2s | Nxb6 | 9s |
| 50 | End. | Rb8 | 15s | Rxb4 | 1m 1s |
| 51 | End. | Rxb7+ | 8s | Kf6 | 5s |
| 52 | End. | Nd3 | 1m 4s | Rb3 | 1m 15s |
| 53 | End. | Nf4 | 2m 33s | Rb1+ | 1m 51s |
| 54 | End. | Kf2 | 10s | Rb2+ | 37s |
| 55 | End. | Kf3 | 47s | Nc4 | 1m 12s |