The Retrograde Analysis Corner

diagrammes

No. 120 , Jan. 1997

3682 - Leonid Borodatov
diagrammes 120, 01/1997

16+8. Mate in 1

[8/8/2P5/PPrPP3/RPpQpP2/q4pB1/k1KpRP2/NN1Bb3]

Solution

3683c - Stanislav Vokal
diagrammes 122, 07/1997 (for the corrected version)

10+11. Mate in 3

[4k2r/1p1p1p1r/2pPpPp1/4P3/2P5/4R1pb/PPP5/R3K3]

Solution

3684 - Alexander Zolotarev
diagrammes 120, 01/1997

10+12. Least number of moves by Queens?

[3q4/pp2p3/3ppp2/5K2/8/4Pkp1/3PNPNq/2BQrbRB]

Solution

3685 - Jean-Michel Trillon
diagrammes 120, 01/1997
(This problem was later found to be cooked)

4+3. Ortho-Reconstruction in 9.5 moves (Wh. to move; Sentry chess)

[8/7p/6B1/1k6/2p5/6K1/8/2N4B]

Solution

3686 - Thierry Le Gleuher
diagrammes 120, 01/1997

7+5. (Monochromatic chess) Who captured the White Queen Knight?

[8/1p4p1/P1B4P/4p1Q1/6P1/K7/3P4/2qk4]

Solution

3687 - Thierry Le Gleuher
diagrammes 120, 01/1997

7+7. (Monochromatic chess) Where was the White Queen Bishop captured?

[2k5/3pp3/2p5/3p4/P3P1P1/p1P1p3/3P3P/6K1]

Solution