Home > Neutreeko > Puzzles > Hard 4001-4250
| 1. e3-d4, | 2. c5-c3, | 3. d4-c5, | 4. c3-a3, | 5. c5-c3, | 6. c2-b1, | 7. c1-c2 |
| 1. e3-d4, | 2. c2-b1?, | 3. d4-c3, | 4. c5-a3, | 5. c1-c2 | ||
| 1. e3-d4, | 2. c5-a3?, | 3. d4-c3, | 4. c2-b1, | 5. c1-c2 | ||
| 1. e3-d4, | 2. c2-a4?, | 3. c1-a1 | ||||
| 1. e3-d4, | 2. c2-a4?, | 3. d4-c3 | ||||
| 1. e3-d4, | 2. c2-d1?, | 3. c1-a1 | ||||
| 1. e3-d4, | 2. c2-d1?, | 3. b2-b1 | ||||
| 1. e3-d4, | 2. c2-d1?, | 3. d4-c3 | ||||
| 1. e3-d4, | 2. c2-e2?, | 3. c1-a1 | ||||
| 1. e3-d4, | 2. c2-e2?, | 3. b2-b1 | ||||
| 1. e3-d4, | 2. d3-a3?, | 3. b2-b1 | ||||
| 1. e3-d4, | 2. d3-b5?, | 3. b2-b1 | ||||
| 1. e3-d4, | 2. d3-b5?, | 3. d4-c3 | ||||
| 1. e3-d4, | 2. d3-d1?, | 3. d4-c3 | ||||
| 1. e3-d4, | 2. d3-e2?, | 3. b2-b1 | ||||
| 1. e3-d4, | 2. d3-e2?, | 3. d4-c3 | ||||
| 1. e3-d4, | 2. d3-e3?, | 3. b2-b1 | ||||
| 1. e3-d4, | 2. d3-e3?, | 3. d4-c3 | ||||
| 1. e3-d4, | 2. d3-e4?, | 3. b2-b1 | ||||
| 1. e3-d4, | 2. d3-e4?, | 3. d4-c3 | ||||
| 1. e3-d4, | 2. c5-a5?, | 3. c1-a1 | ||||
| 1. e3-d4, | 2. c5-a5?, | 3. d4-c3 | ||||
| 1. e3-d4, | 2. c5-e5?, | 3. c1-a1 | ||||
| 1. e3-d4, | 2. c5-e5?, | 3. b2-b1 | ||||
| 1. e3-d4, | 2. c5-e5?, | 3. d4-c3 | ||||
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| 1. c1-d2?, | 2. c2-c1 | (black wins in 13 moves) | ||||
| 1. e3-d2?, | 2. c2-b1 | (black loses in 38 moves) | ||||
| 1. e3-e1?, | 2. c2-d1 | (black loses in 14 moves) | ||||
| 1. b2-e5?, | 2. c5-d4 | (black loses in 6 moves) | ||||