Home > Neutreeko > Puzzles > Hard 4001-4250
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e1-a1, | 7. c2-d2 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e1-a1, | 7. c2-e4 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e1-a1, | 7. e3-b3 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e1-a5, | 7. c2-d2 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e1-a5, | 7. e3-b3 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e2-d1, | 7. c2-e4 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e2-d1, | 7. e3-b3 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e2-d1, | 7. e3-e2 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e2-d2, | 7. c2-e4 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e2-d2, | 7. e3-b3 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e2-b5, | 7. c2-e4 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e2-b5, | 7. e3-b3 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. e2-b5, | 7. e3-e2 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-a1, | 7. b2-e5 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-a1, | 7. c2-c1 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-a1, | 7. c2-d2 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-a1, | 7. c2-e4 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-a1, | 7. e3-a3 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-a5, | 7. b2-e5 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-a5, | 7. c2-c1 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-a5, | 7. c2-d2 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-a5, | 7. e3-a3 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-d3, | 7. c2-d2 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-c5, | 7. b2-e5 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e2, | 5. c1-e3, | 6. a3-c5, | 7. c2-c1 |
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. e1-d1?, | 5. b2-a1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. e1-a5?, | 5. b2-a1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. e1-e5?, | 5. b2-a1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. a3-a1?, | 5. c1-b1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. a3-a5?, | 5. b2-a1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. a3-c3?, | 5. b2-a1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. a3-c3?, | 5. c2-b1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. a3-c5?, | 5. b2-a1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. a3-c5?, | 5. c2-b1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-b3?, | 5. c2-d1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-b5?, | 5. c2-d1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-d1?, | 5. b2-a1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-d5?, | 5. b2-a1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-d5?, | 5. c2-d1 | ||
| 1. d4-c5, | 2. c3-a3, | 3. c5-c2, | 4. d3-e4?, | 5. b2-a1 | ||
| --- | ||||||
| 1. b2-e2?, | 2. c3-d2 | (draw) | ||||
| 1. d4-e3?, | 2. e1-d2 | (black loses in 12 moves) | ||||
| 1. c1-a1?, | 2. d3-d1 | (black loses in 4 moves) | ||||
| 1. c1-a1?, | 2. d3-e2 | (black loses in 4 moves) | ||||
| 1. c1-a1?, | 2. d3-e3 | (black loses in 4 moves) | ||||
| 1. c1-e3?, | 2. c3-c1 | (black loses in 4 moves) | ||||
| 1. b2-a1?, | 2. e1-d2 | (black loses in 4 moves) | ||||
| 1. b2-a2?, | 2. e1-d2 | (black loses in 4 moves) | ||||
| 1. b2-a3?, | 2. e1-d2 | (black loses in 4 moves) | ||||
| 1. b2-b1?, | 2. e1-d2 | (black loses in 4 moves) | ||||
| 1. b2-b5?, | 2. e1-d2 | (black loses in 4 moves) | ||||