The Retrograde Analysis Corner

Shakhmatnaya Kompozitsiya

No. 31

62 - A. Yarosh
Shakhmatnaya Kompozitsiya 31

[2RrR3/3k3K/2R1R3/8/8/8/8/8]

5+2. Mate in 2.

63 - A. Yarosh
Shakhmatnaya Kompozitsiya 31

[8/8/8/8/8/8/3P4/1N1K1K2]

4+0. Colour the pieces, retract black's last move, and h#1.

64 - V. Baikin
Shakhmatnaya Kompozitsiya 31

[b1Nb4/PrRrp3/n1Kp4/2p5/2kN4/2PPPPP1/3PPpp1/4BBR1]

15+11. Mate?

65 - V. Peretyatko
Shakhmatnaya Kompozitsiya 31

[6bn/2p2ppR/1p2prqp/3p1PBr/5RBP/3PP1QB/1PK1k3/2RNN1R1]

16+13. Mate?

66 - A. Kornilov & A. Frolkin
Shakhmatnaya Kompozitsiya 31

[5k2/PPPpRPPQ/2ppbR1K/3p1pr1/6p1/5P1p/4PP2/6n1]

12+11. Release the position!

67 - A. Kornilov & A. Frolkin
Shakhmatnaya Kompozitsiya 31

[5KQ1/p1pprP2/3pRPPk/4pprb/6p1/3P4/1P4P1/8]

9+11. Release the position!

68 - A. Zolotarev
Shakhmatnaya Kompozitsiya 31

[2q5/2pp1p2/2p5/b1K1p3/rb2Pp2/2k1p3/rNPNRP2/Qn2BB2]

10+14. Shortest route of a white and black queen?