Probleemblad

March 2003

R194 - Reto Aschwanden

Probleemblad, Mar. 2003

[1kr3n1/p2np3/1p3p2/q2pbrp1/6bp/2N1P3/PP3PPP/R1BQK1NR]

Solution

R195 - Unto Heinonen

Probleemblad, Mar. 2003

15+15. Shortest proof game in 16.5 moves (C+)

[2k2nr1/pppn1b1p/1qp1ppp1/8/3b4/4P3/PPPP1PPP/RNB1KBNR]

Solution

R196 - Thierry le Gleuher

Probleemblad, Mar. 2003

6+16. Shortest proof game in 25.0 moves

[6rn/4pp1n/3p1rpp/p1pk4/1p6/8/3N4/RqbQKbNR]

Solution

R197 - Pascal Wassong

Probleemblad, Mar. 2003

14+15. Shortest proof game in 27.5 moves

[2R3kr/n5pp/b4ppb/pp5q/P7/nBpP4/NP3PPP/rN1QKB1R]

Solution

R198 - Guus Rol

Probleemblad, Mar. 2003

10+7/8. A black bishop is missing. Drawn by repetition. (a) Add the missing bishop and prove there is only one legal square for it. (b) Give the moves of the shortest possible repetition loop.

Drawn: A position is drawn if (a) this position (pieces and move possibilities in the position) occurs for the third time; or (b) 100 half-moves have passed without a capture, a pawn move, or castling. This ends the game immediately. [I.e. if a position is drawn, either the last move is the first time a 3-fold repetition occurs, or it was the 100th half-move without capture, pawn move or castling]

[8/8/6p1/1p6/7P/1P2pP1p/pPPPP1PK/1b2k2R]

Solution

R199 - Michel Caillaud

Probleemblad, Mar. 2003

11+12. Drawn. Which rule is used? [3-fold repetition or 50-move rule] (a) Diagram (b) Ba7->Sa7

Drawn: A position is drawn if (a) this position (pieces and move possibilities in the position) occurs for the third time; or (b) 100 half-moves have passed without a capture, a pawn move, or castling. This ends the game immediately. [I.e. if a position is drawn, either the last move is the first time a 3-fold repetition occurs, or it was the 100th half-move without capture, pawn move or castling]

[8/bp1B1p2/bP1P4/Pk1p1Pp1/3pP1Pp/1ppK2Br/4P2P/8]

Solution

R183c - Arpad Molnar

Probleemblad, Mar. 2003

12+10. What was the position 11 half-moves ago?

[2b5/pp1pppp1/1N4p1/QP6/P2R4/1kBP4/1p1PP3/RNK5]

Solution

R184c - Gligor Denkovski

Probleemblad, Mar. 2003

14+14. Shortest proof game in 16.0 moves (C+)

[2bkrb2/2pppp2/p5p1/5p2/r5n1/1q6/PP1PPPP1/RNBQKBNR]

Solution