[Retros] The Problemist July 2009

[Joost de Heer]

R411 - Dragan Stojnić
r3k1Sr/1p1p1s1S/5R2/7Q/pp1R1p2/P2PpPP1/P1PP1pP1/1Kb5 (14+12)
+---+---+---+---+---+---+---+---+

|*R | . |   | . |*K | . | S |*R |

+---+---+---+---+---+---+---+---+

| . |*P | . |*P | . |*S | . | S |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | R |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . | Q |

+---+---+---+---+---+---+---+---+

|*P |*P |   | R |   |*P |   | . |

+---+---+---+---+---+---+---+---+

| P |   | . | P |*P | P | P |   |

+---+---+---+---+---+---+---+---+

| P | . | P | P |   |*P | P | . |

+---+---+---+---+---+---+---+---+

| . | K |*B |   | . |   | . |   |

+---+---+---+---+---+---+---+---+
#2

R412 - Alain Brobecker
After L.Ceriani
R4skR/1p1ppppp/7p/8/S2P3K/7p/P1PPPP1P/8 (11+10)
---+---+---+---+---+---+---+---
  R | . |   | . |   |*S |*K | R
---+---+---+---+---+---+---+---
  . |*P | . |*P |*P |*P |*P |*P
---+---+---+---+---+---+---+---
    | . |   | . |   | . |   |*P
---+---+---+---+---+---+---+---
  . |   | . |   | . |   | . |
---+---+---+---+---+---+---+---
  S | . |   | P |   | . |   | K
---+---+---+---+---+---+---+---
  . |   | . |   | . |   | . |*P
---+---+---+---+---+---+---+---
  P | . | P | P | P | P |   | P
---+---+---+---+---+---+---+---
  . |   | . |   | . |   | . |
---+---+---+---+---+---+---+---
The position has been shifted on a vertical cylinder. What's the a-file?

R413 - Dragan Petrović
8/p7/pp4P1/1PPk1PPQ/BrqSbKPS/1pPRppsR/2pp3b/4B1sr (15+16)
+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

|*P |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|*P |*P |   | . |   | . | P | . |

+---+---+---+---+---+---+---+---+

| . | P | P |*K | . | P | P | Q |

+---+---+---+---+---+---+---+---+

| B |*R |*Q | S |*B | K | P | S |

+---+---+---+---+---+---+---+---+

| . |*P | P | R |*P |*P |*S | R |

+---+---+---+---+---+---+---+---+

|   | . |*P |*P |   | . |   |*B |

+---+---+---+---+---+---+---+---+

| . |   | . |   | B |   |*S |*R |

+---+---+---+---+---+---+---+---+
Circe, how many moves by Sd4 to untie?

(Hints for R413: Begin is -1. Sg2-h4 Sf1*Pg3[-] -2. Sg2-h4 b7-b6 -3. 
g2-g3 Sg3-f1, and the author's solution needs 267 moves to untie the 
position).

F2728c - Paul Raican
rs2k1s1/ppp3p1/3r1p2/3p4/3q1b2/8/PP2PPPP/1SBQKBSR (13+13)
+---+---+---+---+---+---+---+---+

|*R |*S |   | . |*K | . |*S | . |

+---+---+---+---+---+---+---+---+

|*P |*P |*P |   | . |   |*P |   |

+---+---+---+---+---+---+---+---+

|   | . |   |*R |   |*P |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |*P | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   |*Q |   |*B |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

| P | P |   | . | P | P | P | P |

+---+---+---+---+---+---+---+---+

| . | S | B | Q | K | B | S | R |

+---+---+---+---+---+---+---+---+
PG 8.0 (Annan)

SOLUTIONS January 2009

R405 - Dunn
1. g4 e5 2. Bh3 Qh4 3. g5 e4 4. Bxd7+ Nxd7 5. Nh3 Ne5 6. O-O Bxh3 7. f4 
O-O-O 8. Rf3 Rd6 9. Rd3 Rg6 10. Rd5 Bc5+ 11. d4 exd3+ 12. Be3 d2 13. Bd4 
Nd3 14. e3 Ne1 15. Qg4+ f5 16. gxf6+

R406 - Le Gleuher
1. a4 Nc6 2. Ra3 Nd4 3. Rc3 Nb5 4. Rxc7 Na3 5. Rc3 Qa5 6. h4 Qh5 7. Rch3 
g5 8. Nf3 Bg7 9. Rg1 Be5 10. Rhh1 Bh2 11. g3 b5 12. Bh3 Bb7 13. Kf1 
O-O-O 14. Kg2 Kb8 15. Re1 Rc8 16. Kf1 Rc3 17. Ng1 Rb3 18. cxb3 f5 19. 
Qc2 Nf6 20. Rd1 Rc8 21. Ke1 Rc3 22. Bf1 Re3 23. Qc4 Be4 24. Nc3 Bc2 25. 
d3 a5 26. Bd2 Ka7 27. Ra1 Bd1 28. Nb1