No. 26, Apr-Jun 2004
R0110 -
StrateGems 26, Apr-Jun 2004
Retract 0. Sc6-b8 -1. d6xRe7 Sd4-c6 -2. c3-c4 Se2-d4 -3. c2-c3 Sc3-e2 -4. d5-d6 Sd1-c3 -5. d4-d5 d2-d1=S -6. d3-d4 c3xQd2 -7. Qe3-d2 Re8-e7 -8. Qb6-e3 Re7-e8 -9. Qd8-b6 Re8-e7 -10. Bb4-f8 Re7-e8 -11. Qf8-d8 Re8-e7 -12. Ba3-b4 Rd8-e8 -13. Qe8-f8 c4-c3 -14. Kf8-g8 c5-c4 -15. Ke7-f8 c6-c5 -16. Qg8-e8 Rf8-d8 etc. BR must alst wait on g8 while Bf8 returns home and wSh8 leaves, so he has occupied d8, e7, e8, f8, g8 and h8.
R0111 -
StrateGems 26, Apr-Jun 2004
Add wKc3c4c5c6c7 bKa3a4a5a6a7, then retract -1.b7-b8B+ Ka8-a7 -2.b6-b7 Ka7-a6 -3.b5-b6 Ka6-a5 -4.b4-b5 Ka5-a4 -5.b3-b4 Ka4-a3 -6.b2-b3, retro-stalemate.
Cook by Dmitri Baibikov: Same as author solution, but add extra kings, e.g. wKh6e8 bKh8g8.
R0112 -
StrateGems 26, Apr-Jun 2004
Retract -1. Eg6xEg2[Ee8] Ee8-e2 -2. g2-g3 & 1. Sf7 Eg6[Eg1]#
R0113 -
StrateGems 26, Apr-Jun 2004
Try: 1. Kc3xPb4?? requires too many bP captures. If white could play Kc2x?d3, he could force the b-pawn to b5 and mate by retracting Ne7 for Bb4, but an Nd3 stops the mate and Rd3 stops wK from reaching c3.
Therefore, he first retracts -1. Ke1xQf2! Qg2-f2! -2. Ke1xQf2! (not Ke1xQf1?? allowing ... Qc1 as a defense at the end) Bd8-g5 -3. Kc2xQd3! b4-b3 -4. Kc3-c2 b5-b4 -5. Ne7-g8 and 1. Bb4#. Uncapture of 3bQ.
P0149 -
StrateGems 26, Apr-Jun 2004
1. f3 h5 2. Kf2 Rh6 3. Ke3 Rc6 4. Kd3 Rc3+ 5. dxc3 e6 6. Kd2 Bd6 7. Ke1 Bxh2 8. Nd2 Bg3#
P0150 -
StrateGems 26, Apr-Jun 2004
1. h4 g5 2. hxg5 Nf6 3. gxf6 d5 4. fxe7 Bg4 5. exd8=B Bf3 6. exf3 f6 7. Bb5+ Kf7 8. Qe2 Bb4 9. Kd1 Rf8 10. Be8+ Kg8 11. Qb5 Nd7 12. Ne2 Rxd8
A combination of wB Schnoebelen and false castling
P0151 -
StrateGems 26, Apr-Jun 2004
1. h4 b5 2. h5 b4 3. h6 b3 4. hxg7 bxa2 5. gxh8=R axb1=R 6. Ra4 d5 7. Rah4 d4 8. f4 d3 9. Nf3 dxe2 10. d4 f6 11. Kd2 e1=R 12. Ba6 Kf7 13. c4 Kg7 14. Kc2 Kxh8 15. Kxb1 Bf5+ 16. Ka1 Nd7 17. Rxe1
The first example of three Schnoebelen rooks
P0152 -
StrateGems 26, Apr-Jun 2004
After Cornel Pacura
1. d4 e5 2. Bh6 g5 3. Bxf8 h6 4. Ba3 Rh7 5. b4 Rg7 6. Bc1 Rg6 7. a3 Rd6 8. Ra2 Rd5 9. Rb2 d6 10. Rb3 Qd7 11. Rf3 Qa4 12. e3 Nd7 13. Ba6 b5 14. Bxc8 Nb6 15. Bh3 Rd8 16. g4 Kd7 17. Bf1
A version of Pacurar's double Bishop Rundlauf with two less captures. Is it possible to do this without capture of black's bishops?
P0153 -
StrateGems 26, Apr-Jun 2004
1. a4 e5 2. a5 e4 3. a6 e3 4. axb7 a5 5. bxc8=B a4 6. Bb7 a3 7. Bf3 axb2 8. Na3 b1=R 9. Bh5 Rb7 10. Bb2 Qh4 11. Qb1 exf2+ 12. Kd1 fxg1=B 13. Bc1 Ba7 14. Qb6 Qxh2 15. Qg1 Qd6 16. Rh2 Rb1 17. Qh1 Bg1
GD-50 theme with two clearances for wQ maneuver, but with 'extra-set' pieces present in the diagram.
P0154 -
StrateGems 26, Apr-Jun 2004
1. b4 Na6 2. Bb2 Nc5 3. Bd4 Ne4 4. Bxa7 Ng3 5. Be3 Nxh1 6. g3 Rxa2 7. Bg2 Ra8 8. Ra5 h5 9. Rxh5 Rb8 10. Rc5 Rh4 11. Bd5 Rd4 12. f3 Nf2 13. Nc3 Ng4 14. Ne4 Ne5 15. Kf2 Nc4 16. Qf1 Nb6 17. Ke1 Na8 18. Kd1 b6 19. Qe1
Eleven move trek by bS, inspired by Gräfrath's Losing Chess PG.
P0155 -
StrateGems 26, Apr-Jun 2004
1. Nf3 d6 2. Ne5 Be6 3. Nd7 Bb3 4. axb3 Nc6 5. Ra4 Ne5 6. Rf4 c6 7. Rf6 gxf6 8. Nc3 Bh6 9. Nd5 Bf4 10. c3 Bg3 11. hxg3 Nh6 12. Rh4 Rg8 13. Ra4 Rg4 14. Ra1 Ra4 15. Nf4 Ra3 16. bxa3 Qa5 17. Bb2 O-O-O 18. Qc1 Rh8 19. Kd1 Kd8 20. Kc2 Ke8 21. Kb1
A nice blend of imposters on a1/h8 with castling/uncastle by black