The Retrograde Analysis Corner

diagrammes

No. 113, Apr. 1995

3298 - Andrey Kisliak
diagrammes 113, 04/1995

13+11. First move of the black Queen?

[2b1q1Nb/1ppppp2/5p1p/R6B/7k/1P4P1/1PPPPP1K/N1B5]

Solution

3299 - Andrey Frolkin
diagrammes 113, 04/1995

14+13. Shortest proof game in 20.0 moves

[4R1B1/pbpp1nr1/q1p3k1/4b3/6nr/4P3/PPPPN1Pp/RNBQ2K1]

Solution

3300 - Thierry Le Gleuher
diagrammes 113, 04/1995

8+9. Last 23 single moves? (Monochromatic chess)

[1n6/p3pp1R/4B1kr/1p5P/5R2/4K3/4P3/Bn3Qn1]

Solution