No. 40, Oct-Dec 2007
R0141 - Dmitri Baibikov
StrateGems 40, Oct-Dec 2007
This problem was later found to be cooked by Göran Wicklund.
13+11. Last 61 single moves?
[1q2RqBq/2pRbNQp/P2ppK1P/8/5k2/5Pq1/p4PPB/6N1]
Solution
P0213 - Jorge J. Lois
12+15. Proof Game in 14.0 moves (C+)
[rnbqkbnr/pppp1ppp/8/8/P7/KB6/QPP1P1RP/1NB3R1]
P0214 - Jorge J. Lois, Roberto Osorio
14+12. Proof Game in 15.0 moves (C+)
[2n5/2pn2kp/4b1p1/3p1pr1/8/8/rPPPPqPP/RNBQKBNR]
P0215 - Roberto Osorio
16+14. Proof Game in 15.5 moves (C+)
[rnb2rqb/pppp4/6p1/7p/6n1/7k/PPPPPPNP/RNBQKBNR]
P0216 - Roberto Osorio, Jorge J. Lois
13+16. Proof Game in 16.0 moves (C+)
[rnbqkbnr/pppppppp/2R5/2Q5/3P2K1/5P2/1PPNB1PP/4BN2]
P0217 - Roberto Osorio, Jorge J. Lois
15+14. Proof Game in 17.0 moves (C+)
[7r/pppb2pp/2n5/qk2p3/1n6/4r3/PPPbPPPP/RNBQKBNR]
P0218 - Noam D. Elkies
16+16. Proof Game in 20.5 moves (C+)
[1n2r1n1/1pp1p2p/3p1pp1/p4rbk/3QB3/1PN3Pb/P1PPPP1P/RqB1K1NR]
P0219 - René J. Millour
A: 8+11; B: 6+3. Proof Game in 21.0 moves (Alice Chess)
A:[rnb3nk/1ppppp1p/8/8/8/8/PPP2RRP/RN6] B:[5r2/8/p7/6B1/2B1P3/8/4N3/3qK2R]