Twenty One-Move Problems

In each of the puzzles below, White must win the game (by mate or explosion in one move). Click and drag to highlight the solutions.

rn4k1/1pp2np1/p4p2/2b5/2P5/PP2Q1P1/5P2/1B1RK2R w
rn4k1/1pp2np1/p4p2/2b5/2P5/PP2Q1P1/5P2/1B1RK2R w

Solution: 1. Rh8#

rn1qkb1r/ppp1pppp/5n2/3p1B2/6b1/4PQ2/PPPP1PPP/RNB1K1NR w
rn1qkb1r/ppp1pppp/5n2/3p1B2/6b1/4PQ2/PPPP1PPP/RNB1K1NR w

Solution: 1. Bd7#

r1b1k2r/ppp4p/2n1N1pq/1B6/1P5Q/2P5/P5PP/R4RK1 w
r1b1k2r/ppp4p/2n1N1pq/1B6/1P5Q/2P5/P5PP/R4RK1 w

Solution: 1. Nxc7#

8/8/8/7N/4KpB1/1R3kp1/4QR2/8 w
8/8/8/7N/4KpB1/1R3kp1/4QR2/8 w

Solution: 1. Nxg3##

2B3Q1/4k3/5p2/q7/7b/8/3R1R2/4K3 w
2B3Q1/4k3/5p2/q7/7b/8/3R1R2/4K3 w

Solution: 1. Rxf6##

8/3B1pp1/1B1k3p/4pP2/6P1/2p1N2P/2K5/8 w
8/3B1pp1/1B1k3p/4pP2/6P1/2p1N2P/2K5/8 w

Solution: 1. fxe6 e.p.##

2rk3r/2p1p1p1/1p5p/p6B/6n1/1P2P3/P1P2PP1/R3K3 w
2rk3r/2p1p1p1/1p5p/p6B/6n1/1P2P3/P1P2PP1/R3K3 w

Solution: 1. O-O-O#

1R6/2Pk1P2/2nN4/8/7B/8/8/4K3 w
1R6/2Pk1P2/2nN4/8/7B/8/8/4K3 w

Solution: 1. f8=N#

8/8/6K1/8/2R5/4k3/1Q6/8 w
8/8/6K1/8/2R5/4k3/1Q6/8 w

Solution: 1. Qe2#

k4rrb/1ppNp2p/3p4/3P4/2P1Pp2/1P3P1P/7R/1R2K3 w
"k4rrb/1ppNp2p/3p4/3P4/2P1Pp2/1P3P1P/7R/1R2K3 w

Solution: 1. Ra2#

8/8/8/Q7/2Pk1p2/5P2/4PK2/2N5 w
"8/8/8/Q7/2Pk1p2/5P2/4PK2/2N5 w

Solution: 1. e3#

7r/r4P1k/7p/7N/8/8/8/6QK w
"7r/r4P1k/7p/7N/8/8/8/6QK w

Solution: 1. Qb1#

7k/3P1R2/p2n4/1p6/7B/8/BPP3rp/7K w
"7k/3P1R2/p2n4/1p6/7B/8/BPP3rp/7K w

Solution: 1. Rh7#

8/5k2/3Q4/4pPpK/8/6q1/8/8 w
"8/5k2/3Q4/4pPpK/8/6q1/8/8 w

Solution: 1. fxe6 e.p.##

8/8/8/8/8/3Q4/3qR3/3kK2R w
"8/8/8/8/8/3Q4/3qR3/3kK2R w

Solution: 1. O-O#

6k1/5p1p/8/4Q3/8/8/4qPP1/4K2R w
"6k1/5p1p/8/4Q3/8/8/4qPP1/4K2R w

Solution: 1. Rxh7##

8/7b/8/8/k1N1Q3/8/8/1RK5 w
"8/7b/8/8/k1N1Q3/8/8/1RK5 w

Solution: 1. Rb4#

8/8/8/8/1P4b1/k3KR1R/PN1P4/8 w
"8/8/8/8/1P4b1/k3KR1R/PN1P4/8 w

Solution: 1. Kd4#

6b1/PPk1PP2/5N2/1n1P4/2N5/4KB2/r7/8 w
"6b1/PPk1PP2/5N2/1n1P4/2N5/4KB2/r7/8 w

Solution: 1. d6#

8/8/8/8/8/7R/2k3PQ/5RK1 w
"8/8/8/8/8/7R/2k3PQ/5RK1 w

Solution: 1. g4#