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Phénix

No. 124, Dec 2003

4402 - Evgeni Bourd
Phénix 124, Dec. 2003

[8/6K1/2pp4/5k2/5p2/5p2/8/8]

1+5. Black retracts one move, then h#1 (Proca Retractor) (4 solutions)

[8/6K1/2pp4/5k2/5p2/5p2/8/8]

Link: Solution


4403 - Wolfgang Dittmann
Phénix 124, Dec. 2003

[5k1K/B4P1b/2B2P2/5P2/8/8/1b6/1n1R2r1]

7+5. Retract 3 moves, then #1 (Proca Retractor, Anticirce)

[5k1K/B4P1b/2B2P2/5P2/8/8/1b6/1n1R2r1]

Link: Solution


4404 - Eyjölfur O. Eyjolfsson
Phénix 124, Dec. 2003

[rnb1k2r/pppp1p2/7p/8/8/8/P1P1PPPP/RNBQKBNR]

14+11. Shortest proof game in 6,5 moves (C+) (2 solutions)

[rnb1k2r/pppp1p2/7p/8/8/8/P1P1PPPP/RNBQKBNR]

Link: Solution


4405 - Reto Aschwaden
Phénix 124, Dec. 2003
This problem was later found to be misprinted.

[2k1rr2/pb2nppp/1q4n1/1pbp4/8/8/P1P1PPPP/RNBQKBNR]

14+14. Shortest proof game in 13.0 moves (C+)

[2k1rr2/pb2nppp/1q4n1/1pbp4/8/8/P1P1PPPP/RNBQKBNR]

Due to a misprint by my mistake, problem number 4405 Phenix 124 is'nt correct. This problem, with the correct diagram, will reappear in a next Phenix issue. I apologize to Reto Aschwanden.

Link: Solution


4406 - Didier Innocenti
Phénix 124, Dec. 2003

[rnb1qknr/ppppp1b1/5ppp/8/2PN4/8/PP1PPPPP/1N2KB1R]

13+16. Shortest proof game in 13.0 moves (C+)

[rnb1qknr/ppppp1b1/5ppp/8/2PN4/8/PP1PPPPP/1N2KB1R]

Link: Solution


4407 - Eyjölfur O. Eyjolfsson
Phénix 124, Dec. 2003

[1Q1q1rrR/pp1p1ppp/1kp1n3/8/5B2/4P3/PPP2PPP/RN2KBNR]

16+12. Shortest proof game in 13,5 coups (C+)

[1Q1q1rrR/pp1p1ppp/1kp1n3/8/5B2/4P3/PPP2PPP/RN2KBNR]

Link: Solution


4408 - Reto Aschwaden
Phénix 124, Dec. 2003

[rnb3q1/ppp5/2np1p2/5p2/2k5/8/1PPPPPPb/1NBQKBNr]

12+14. Shortest proof game in 14.0 moves (C+)

[rnb3q1/ppp5/2np1p2/5p2/2k5/8/1PPPPPPb/1NBQKBNr]

Link: Solution


4409 - Rustam Ubaidullaev
Phénix 124, Dec. 2003

[1nb1qbnr/1pppp1p1/3BrpKp/p1R2Q1P/2P2PPk/3P4/PP1NP3/R4B1N]

16+16. Shortest proof game in 22.0 moves (C+)

[1nb1qbnr/1pppp1p1/3BrpKp/p1R2Q1P/2P2PPk/3P4/PP1NP3/R4B1N]

Link: Solution