[Retros] StrateGems 46, Apr-Jun 2009
Joost de Heer
joost at sanguis.xs4all.nl
Mon Mar 30 17:35:31 EDT 2009
All proofgames are C+.
R0149 - Dragan Petrovic
5B2/2p1p3/3Np3/2P1B3/1PPk1PP1/brrppKpB/Ppp1nRQR/B1N2nqb (16+16)
+---+---+---+---+---+---+---+---+
| | . | | . | | B | | . |
+---+---+---+---+---+---+---+---+
| . | |*P | |*P | | . | |
+---+---+---+---+---+---+---+---+
| | . | | N |*P | . | | . |
+---+---+---+---+---+---+---+---+
| . | | P | | B | | . | |
+---+---+---+---+---+---+---+---+
| | P | P |*K | | P | P | . |
+---+---+---+---+---+---+---+---+
|*B |*R |*R |*P |*P | K |*P | B |
+---+---+---+---+---+---+---+---+
| P |*P |*P | . |*N | R | Q | R |
+---+---+---+---+---+---+---+---+
| B | | N | | . |*N |*Q |*B |
+---+---+---+---+---+---+---+---+
Shortest resolution, Circe (4wB)
R0150 - Valeriu Petrovici
kB2q3/b7/3N4/8/8/8/8/7K (3+3)
+---+---+---+---+---+---+---+---+
|*K | B | | . |*Q | . | | . |
+---+---+---+---+---+---+---+---+
|*B | | . | | . | | . | |
+---+---+---+---+---+---+---+---+
| | . | | N | | . | | . |
+---+---+---+---+---+---+---+---+
| . | | . | | . | | . | |
+---+---+---+---+---+---+---+---+
| | . | | . | | . | | . |
+---+---+---+---+---+---+---+---+
| . | | . | | . | | . | |
+---+---+---+---+---+---+---+---+
| | . | | . | | . | | . |
+---+---+---+---+---+---+---+---+
| . | | . | | . | | . | K |
+---+---+---+---+---+---+---+---+
Retract 3 white moves for a ser-s#3 (pacific retractor)
R0151 - Valeriu Petrovici
6Nk/5P2/5P2/8/8/p7/rp6/1K6 (4+4)
+---+---+---+---+---+---+---+---+
| | . | | . | | . | N |*K |
+---+---+---+---+---+---+---+---+
| . | | . | | . | P | . | |
+---+---+---+---+---+---+---+---+
| | . | | . | | P | | . |
+---+---+---+---+---+---+---+---+
| . | | . | | . | | . | |
+---+---+---+---+---+---+---+---+
| | . | | . | | . | | . |
+---+---+---+---+---+---+---+---+
|*P | | . | | . | | . | |
+---+---+---+---+---+---+---+---+
|*R |*P | | . | | . | | . |
+---+---+---+---+---+---+---+---+
| . | K | . | | . | | . | |
+---+---+---+---+---+---+---+---+
Retract 3 white moves for a ser-s#3 (pacific retractor)
R0152 - Günter Weeth, Klaus Wenda
4k3/1PP5/3R3P/4P2P/4KBP1/2R5/1P2NP2/2N2B2 (15+1)
+---+---+---+---+---+---+---+---+
| | . | | . |*K | . | | . |
+---+---+---+---+---+---+---+---+
| . | P | P | | . | | . | |
+---+---+---+---+---+---+---+---+
| | . | | R | | . | | P |
+---+---+---+---+---+---+---+---+
| . | | . | | P | | . | P |
+---+---+---+---+---+---+---+---+
| | . | | . | K | B | P | . |
+---+---+---+---+---+---+---+---+
| . | | R | | . | | . | |
+---+---+---+---+---+---+---+---+
| | P | | . | N | P | | . |
+---+---+---+---+---+---+---+---+
| . | | N | | . | B | . | |
+---+---+---+---+---+---+---+---+
-4 & r#1 (Anticirce Calvet, Proca retractor)
P0244 - James Soliman
rnBq1rnk/ppp1pRbp/2Q4p/3p4/P1P3P1/3P4/1P2PP1P/1N2K1NR (15+14)
+---+---+---+---+---+---+---+---+
|*R |*N | B |*Q | |*R |*N |*K |
+---+---+---+---+---+---+---+---+
|*P |*P |*P | |*P | R |*B |*P |
+---+---+---+---+---+---+---+---+
| | . | Q | . | | . | |*P |
+---+---+---+---+---+---+---+---+
| . | | . |*P | . | | . | |
+---+---+---+---+---+---+---+---+
| P | . | P | . | | . | P | . |
+---+---+---+---+---+---+---+---+
| . | | . | P | . | | . | |
+---+---+---+---+---+---+---+---+
| | P | | . | P | P | | P |
+---+---+---+---+---+---+---+---+
| . | N | . | | K | | N | R |
+---+---+---+---+---+---+---+---+
PG 13.0
P0245 - James Soliman
1nbqkbn1/1pppp2p/8/QR6/5P2/N5K1/r1P5/1nB3nR (8+14)
+---+---+---+---+---+---+---+---+
| |*N |*B |*Q |*K |*B |*N | . |
+---+---+---+---+---+---+---+---+
| . |*P |*P |*P |*P | | . |*P |
+---+---+---+---+---+---+---+---+
| | . | | . | | . | | . |
+---+---+---+---+---+---+---+---+
| Q | R | . | | . | | . | |
+---+---+---+---+---+---+---+---+
| | . | | . | | P | | . |
+---+---+---+---+---+---+---+---+
| N | | . | | . | | K | |
+---+---+---+---+---+---+---+---+
|*R | . | P | . | | . | | . |
+---+---+---+---+---+---+---+---+
| . |*N | B | | . | |*N | R |
+---+---+---+---+---+---+---+---+
PG 15.0 (4bN)
P0246 - Kostas Prentos, James Soliman
4k3/ppp4p/4pqn1/r1pn4/3r2b1/2P5/P1PPPPPP/R1BQKBNR (15+13)
+---+---+---+---+---+---+---+---+
| | . | | . |*K | . | | . |
+---+---+---+---+---+---+---+---+
|*P |*P |*P | | . | | . |*P |
+---+---+---+---+---+---+---+---+
| | . | | . |*P |*Q |*N | . |
+---+---+---+---+---+---+---+---+
|*R | |*P |*N | . | | . | |
+---+---+---+---+---+---+---+---+
| | . | |*R | | . |*B | . |
+---+---+---+---+---+---+---+---+
| . | | P | | . | | . | |
+---+---+---+---+---+---+---+---+
| P | . | P | P | P | P | P | P |
+---+---+---+---+---+---+---+---+
| R | | B | Q | K | B | N | R |
+---+---+---+---+---+---+---+---+
PG 17.5
P0247 - James Soliman
1n1qkB2/1pp2pp1/1pp2pp1/8/8/1PP2PP1/1PPQKPP1/1n3B2 (12+12)
+---+---+---+---+---+---+---+---+
| |*N | |*Q |*K | B | | . |
+---+---+---+---+---+---+---+---+
| . |*P |*P | | . |*P |*P | |
+---+---+---+---+---+---+---+---+
| |*P |*P | . | |*P |*P | . |
+---+---+---+---+---+---+---+---+
| . | | . | | . | | . | |
+---+---+---+---+---+---+---+---+
| | . | | . | | . | | . |
+---+---+---+---+---+---+---+---+
| . | P | P | | . | P | P | |
+---+---+---+---+---+---+---+---+
| | P | P | Q | K | P | P | . |
+---+---+---+---+---+---+---+---+
| . |*N | . | | . | B | . | |
+---+---+---+---+---+---+---+---+
PG 18.5
P0248 - Jorge Lois, Roberto Osorio
rn1q2nr/1pp3pb/1pp1p1k1/5p2/8/6p1/1PNP1PPb/R2QKBNR (11+16)
+---+---+---+---+---+---+---+---+
|*R |*N | |*Q | | . |*N |*R |
+---+---+---+---+---+---+---+---+
| . |*P |*P | | . | |*P |*B |
+---+---+---+---+---+---+---+---+
| |*P |*P | . |*P | . |*K | . |
+---+---+---+---+---+---+---+---+
| . | | . | | . |*P | . | |
+---+---+---+---+---+---+---+---+
| | . | | . | | . | | . |
+---+---+---+---+---+---+---+---+
| . | | . | | . | |*P | |
+---+---+---+---+---+---+---+---+
| | P | N | P | | P | P |*B |
+---+---+---+---+---+---+---+---+
| R | | . | Q | K | B | N | R |
+---+---+---+---+---+---+---+---+
PG 23.0
P0249 - Silvio Baier
1n6/1pp3p1/k1p1pp2/1q1bb3/3r2r1/1p2n1p1/1PP1PPP1/RNBQKBNR (13+16)
+---+---+---+---+---+---+---+---+
| |*N | | . | | . | | . |
+---+---+---+---+---+---+---+---+
| . |*P |*P | | . | |*P | |
+---+---+---+---+---+---+---+---+
|*K | . |*P | . |*P |*P | | . |
+---+---+---+---+---+---+---+---+
| . |*Q | . |*B |*B | | . | |
+---+---+---+---+---+---+---+---+
| | . | |*R | | . |*R | . |
+---+---+---+---+---+---+---+---+
| . |*P | . | |*N | |*P | |
+---+---+---+---+---+---+---+---+
| | P | P | . | P | P | P | . |
+---+---+---+---+---+---+---+---+
| R | N | B | Q | K | B | N | R |
+---+---+---+---+---+---+---+---+
PG 27.5
SOLUTIONS SG 44
P0230 - Soliman
1. f3 h5 2. Kf2 Rh6 3. Kg3 Rd6 4. Kh4 Rd4+ 5. Kh3 d5+ 6. Kg3 Bf5 7. Kf2
e6 8. Ke1 Ba3 9. bxa3 a5 10. Bb2 Ra6 11. Bc3 Rd6 12. Bb4 Na6 13. Bc5 Qb8
14. Bb6 Kd8 15. Bxc7+
P0231 - Soliman
1. a4 h5 2. Ra3 Rh6 3. Rh3 Rg6 4. d3 Rg3 5. hxg3 d5 6. R3h2 Bh3 7. Be3
e6 8. Bxa7 Ba3 9. Nxa3 Qh4 10. Nc4 Nf6 11. Ne3 Qc4 12. g4 Ne4 13. g3
Nxf2 14. Ng2 Nxd1 15. Bf2
P0232 - Soliman
1. h4 Nf6 2. Rh3 Nd5 3. Ra3 f6 4. f3 Kf7 5. Kf2 Ke6 6. Kg3 Ke5 7. Kg4
Kd4 8. Kf5 h5 9. Kg6 Rh7 10. Kf7 Qe8+ 11. Kxe8 g6 12. g3 Bh6 13. Bh3
Bxd2 14. Bf5 g5 15. Bd3 Ke3 16. Bb5+ Kf2 17. Qe1+ Kxe1
P0233 - Raican
1. h4 c6 2. h5 Qc7 3. h6 Kd8 4. hxg7 h5 5. e4 h4 6. e5 h3 7. e6 Rh4 8.
exf7 e5 9. Qh5 Ne7 10. g8=B Bg7 11. f8=B hxg2 12. Bb3 d5 13. Bfc4 dxc4
14. Ne2 g1=B 15. f4 Bb6 16. f5 Rd4 17. f6 Bg4 18. f7 Nc8 19. Ba3 cxb3
20. f8=B bxa2 21. Bfb4 c5 22. c4 cxb4 23. c5 bxa3 24. cxb6
P0234 - Baier
1. a4 h5 2. Ra3 h4 3. Rg3 hxg3 4. e4 Rh4 5. Ne2 Rg4 6. h4 d5 7. h5 d4 8.
h6 d3 9. h7 dxe2 10. Rh6 Qd3 11. Rb6 axb6 12. h8=R Ra5 13. Rh1 Rag5 14.
a5 Bf5 15. a6 e6 16. a7 Ne7 17. a8=R Ng6 18. Ra1 Qa6 19. d4 Nh8 20. d5
g6 21. d6 Bg7 22. d7+ Kf8 23. d8=N Nd7 24. Nc6 Ne5 25. Nd4 Nc4 26. Nf3
Na3 27. Ng1
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