MESON Chess Problem Database
Problem Display
PID: 11454 (3k2K1/1P3Qp1/1NP5/r7/b1pq4/8/3B3b/3R4 w - - 0 1)
Marshall, Burney Means
1st HM., American Chess Bulletin, 1939
#2
7 + 7
| 5088 | How to Solve Chess Problems | 1945 |
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Bg5#
- 2.Qd7#
- 1...Qg1
- 2.Bg5#
- 2.Qd7#
- 1...Qb2
- 2.Bg5#
- 2.Qd7#
- 1...Qf2
- 2.Bg5#
- 2.Qd7#
- 1...Qc3
- 2.Bg5#
- 2.Qd7#
- 1...Qe3
- 2.Qd7#
- 1...Qc5
- 2.Bg5#
- 2.Qd7#
- 1...Qe5
- 2.Bg5#
- 2.Qd7#
- 1...Qxb6
- 2.Bg5#
- 2.Qd7#
- 1...Qf6
- 2.Qd7#
- 1...Qe4
- 2.Bg5#
- 2.Qd7#
- 1...Qf4
- 2.Qd7#
- 1...Qg4
- 2.Bg5#
- 1...Qh4
- 2.Bg5#
- 2.Qd7#
- 1...Qd5
- 2.Bg5#
- 1...Qd7
- 2.Qxd7#
- 1...Re5
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Rg5
- 2.Bxg5#
- 1...Ra6
- 2.Bg5#
- 1...Ra7
- 2.Bg5#
- 1...Ra8
- 2.Bg5#
- 1...Bg1
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Bd6
- 2.Qd7#
- 1...Bc7
- 2.Qf8#
- 1...Bb5
- 2.Bg5#
- 1...Qa1
- Tries
- 1.Sd5?
- threat
- 2.Qd7#
- 2.Qe7#
- 2.Qf8#
- 1...Qxd5
- 2.Bg5#
- 1...Bxc6
- 2.Qe7#
- 1...Qf2
- 2.Qd7#
- 2.Qe7#
- 1...Qe3
- 2.Qd7#
- 1...Qc5
- 2.Qd7#
- 1...Qe5
- 2.Qd7#
- 1...Qf6
- 2.Qd7#
- 1...Qe4
- 2.Qd7#
- 1...Qf4
- 2.Qd7#
- 2.Qe7#
- 1...Qg4
- 2.Qe7#
- 2.Qf8#
- 1...Qh4
- 2.Qd7#
- 2.Qf8#
- 1...Bd6
- 2.Qd7#
- 1...Rxd5!
- threat
- 1.Bf4?
- threat
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Qxd1
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Bxd1
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Qd2
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Qd3
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Qd5
- 2.Bg5#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Qd6
- 2.Rxd6#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Qd7
- 2.Rxd7#
- 2.Qxd7#
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Rb5
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Rc5
- 2.Qf8#
- 2.b8Q#
- 2.b8R#
- 1...Rd5
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Re5
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Rf5
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Rg5
- 2.Bxg5#
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Rh5
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Ra6
- 2.Bg5#
- 2.Rxd4#
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Ra7
- 2.Bg5#
- 2.Rxd4#
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Ra8
- 2.Bg5#
- 2.Rxd4#
- 2.Qf8#
- 2.c7#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Bg1
- 2.Bc7#
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Bg3
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Bc2
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Bb3
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Bb5
- 2.Bg5#
- 2.Rxd4#
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...c3
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...g5
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...g6
- 2.Qf8#
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Bxf4!
- threat
- 1.Re1?
- threat
- 2.Re8#
- 2.Qe7#
- 1...Bxc6
- 2.Qe7#
- 1...Qd7
- 2.Qxd7#
- 1...Qe3
- 2.Qd7#
- 1...Qc5
- 2.Re8#
- 2.Qd7#
- 1...Qe5
- 2.Qd7#
- 1...Qf6
- 2.Re8#
- 2.Qd7#
- 1...Qe4
- 2.Qd7#
- 1...Qh4
- 2.Re8#
- 2.Qd7#
- 1...Qd5
- 2.Re8#
- 1...Qd6
- 2.Re8#
- 1...Re5
- 2.c7#
- 2.b8Q#
- 2.b8R#
- 1...Bd6
- 2.Re8#
- 2.Qd7#
- 1...Be5!
- threat
- 1.Qe8+?
- 1...Kc7
- 2.b8Q#
- 1...Kxe8!
- 1...Kc7
- 1.Sd5?
- Keys
- 1.Sc8!
- threat
- 2.Qe7#
- 1...Qd7
- 2.Qxd7#
- 1...Qe3
- 2.Bxa5#
- 2.Qd7#
- 1...Qc5
- 2.Bxa5#
- 2.Bg5#
- 2.Qd7#
- 1...Qe5
- 2.Bxa5#
- 2.Bg5#
- 2.Qd7#
- 1...Qf6
- 2.Bxa5#
- 2.Qd7#
- 1...Qe4
- 2.Bxa5#
- 2.Bg5#
- 2.Qd7#
- 1...Qh4
- 2.Bxa5#
- 2.Bg5#
- 2.Qd7#
- 1...Qd5
- 2.Bg5#
- 1...Qd6
- 2.Bxa5#
- 1...Re5
- 2.c7#
- 1...Bd6
- 2.Qd7#
- threat
- 1.Sc8!
This anticipates 45501(1971)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- Q(d);N_GUARD::QAR1(F)
- Q(d);::R(A)+B(B),DCHECK
- Q(d);P_PINQ(F),S_CUTR(e)::B(B)
- Q(d);N_GUARD::QAR1(F),XQ(d)
- R(e);N_GUARD::B(B),XR(e)
- R(e);N_GUARD::B(B)
- B(a);S_CUTQ(d)::QAR1(F)
- B(a);SBLOCK::QAR2(F)
- B(b);S_CUTR(e)::B(B)
- Tries
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- Q(d);N_GUARD,P_PINQ(F),XS(C)::B(B)
- B(b);XP(D)::QAB1(F)
- Q(d);::QAR1(F)
- B(a);::QAR1(F)
- Refutation
- R(e);XS(C)
- Try
- B(B);P_PINQ(d)
- Threat
- DUALS(4)
- Refutation
- B(a);XB(B)
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- B(b);XP(D)::QAB1(F)
- Q(d);N_GUARD::QAR1(F),XQ(d)
- Q(d);N_GUARD::QAR1(F)
- Q(d);P_PINQ(F)::R1(A)
- Q(d);::R1(A)
- Refutation
- B(a);
- Try
- Q(F);CHECK
- Vars
- K(g);S_FLIGHT::P=Q
- Refutation
- K(g);P-FLIGHT,XQ(F)
- Try
- Actual
- S(C);
- Threat
- QAB1(F)
- Vars
- Q(d);N_GUARD::QAR1(F),XQ(d)
- Q(d);P_PINQ(F),S_CUTR(e)::B(B)
- Q(d);S_CUTB(a)::B(B),XR(e)
- R(e);S_CUTB(a)::P(D)
- B(a);S_CUTQ(d)::QAR1(F)
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