MESON Chess Problem Database
Problem Display
PID: 243422 (2RBnb2/p2N1Q1n/P1pkP1bN/5RPp/7P/p5p1/B4pP1/5K2 w - - 0 1)
Beale, John Lindsay
Chess World (The), 1947
#2
13 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bxf5
- 2.Sxf5#
- 1...Bxf7
- 2.Sxf7#
- 1...Bxh6
- 2.Be7#
- 2.Qe7#
- 1...Be7
- 2.Bxe7#
- 2.Qxe7#
- 1...Bg7
- 2.Be7#
- 2.Qe7#
- 1...Sxg5
- 2.Qxf8#
- 1...Shf6
- 2.Qxf8#
- 1...Sef6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Sg7
- 2.Bc7#
- 1...c5
- 2.Rd5#
- 1...Bxf5
- Tries
- 1.Sc5?
- threat
- 2.Se4#
- 2.Sb7#
- 2.Qd7#
- 1...Bxf7
- 2.Se4#
- 2.Sb7#
- 2.Sxf7#
- 1...Sxg5
- 2.Sb7#
- 2.Qd7#
- 2.Qxf8#
- 1...Be7
- 2.Se4#
- 2.Sb7#
- 2.Bxe7#
- 2.Qxe7#
- 1...Shf6
- 2.Sb7#
- 2.Qxf8#
- 1...Sef6
- 2.Sb7#
- 2.Bc7#
- 2.Qc7#
- 1...Bxf5!
- threat
- 1.Sb6?
- threat
- 2.Sc4#
- 2.Qd7#
- 1...Bxf7
- 2.Sxf7#
- 1...axb6
- 2.Qd7#
- 1...Be7
- 2.Sc4#
- 2.Bxe7#
- 2.Qxe7#
- 1...Shf6
- 2.Sc4#
- 2.Qxf8#
- 1...Sef6
- 2.Sc4#
- 2.Bc7#
- 2.Qc7#
- 1...Bxf5!
- threat
- 1.Sf6?
- threat
- 2.Se4#
- 2.Sxe8#
- 2.Qd7#
- 1...Bxf7
- 2.Se4#
- 2.Sxf7#
- 1...Sxg5
- 2.Sxe8#
- 2.Qd7#
- 2.Qxf8#
- 1...Shxf6
- 2.Qxf8#
- 1...Sexf6
- 2.Bc7#
- 2.Qc7#
- 1...Be7
- 2.Se4#
- 2.Sxe8#
- 2.Bxe7#
- 2.Qxe7#
- 1...Sc7
- 2.Se4#
- 2.Bxc7#
- 2.Qxc7#
- 2.Qd7#
- 1...Sg7
- 2.Se4#
- 2.Bc7#
- 2.Qc7#
- 2.Qd7#
- 1...Bxf5!
- threat
- 1.Sb8?
- threat
- 2.Rxc6#
- 2.Qd7#
- 1...Bxf7
- 2.Sxf7#
- 2.Rxc6#
- 1...Be7
- 2.Bxe7#
- 2.Rxc6#
- 2.Qxe7#
- 1...Shf6
- 2.Rxc6#
- 2.Qxf8#
- 1...Sef6
- 2.Bc7#
- 2.Rxc6#
- 2.Qc7#
- 1...Sc7
- 2.Bxc7#
- 2.Qxc7#
- 2.Qd7#
- 1...c5
- 2.Rd5#
- 2.Rc6#
- 2.Qd7#
- 1...Bxf5!
- threat
- 1.Sxf8?
- threat
- 2.Be7#
- 2.Qd7#
- 2.Qe7#
- 1...Bxf7
- 2.Sxf7#
- 1...Sxf8
- 2.Be7#
- 2.Qe7#
- 2.Qxf8#
- 1...Shf6
- 2.Be7#
- 2.Qe7#
- 1...Sef6
- 2.Bc7#
- 2.Be7#
- 2.Qc7#
- 2.Qe7#
- 1...Bxf5!
- threat
- 1.Bb3?
- 1...Bxf5
- 2.Sxf5#
- 1...Bxf7
- 2.Sxf7#
- 1...Bxh6
- 2.Be7#
- 2.Qe7#
- 1...Sxg5
- 2.Qxf8#
- 1...Be7
- 2.Bxe7#
- 2.Qxe7#
- 1...Bg7
- 2.Be7#
- 2.Qe7#
- 1...Shf6
- 2.Qxf8#
- 1...Sef6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Sg7
- 2.Bc7#
- 1...c5
- 2.Rd5#
- 1...a2!
- 1...Bxf5
- 1.Bc4?
- 1...Bxf5
- 2.Sxf5#
- 1...Bxf7
- 2.Sxf7#
- 1...Bxh6
- 2.Be7#
- 2.Qe7#
- 1...Sxg5
- 2.Qxf8#
- 1...Be7
- 2.Bxe7#
- 2.Qxe7#
- 1...Bg7
- 2.Be7#
- 2.Qe7#
- 1...Shf6
- 2.Qxf8#
- 1...Sef6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Sg7
- 2.Bc7#
- 1...c5
- 2.Rd5#
- 1...a2!
- 1...Bxf5
- 1.Bb6?
- threat
- 2.Bc5#
- 1...c5
- 2.Bxc5#
- 2.Rd5#
- 1...axb6!
- threat
- 1.Bf6?
- threat
- 2.Be5#
- 1...Bxf7
- 2.Sxf7#
- 1...Shxf6
- 2.Qxf8#
- 1...Bg7
- 2.Be7#
- 2.Qe7#
- 1...Sexf6!
- threat
- 1.Rxf2?
- threat
- 2.Qf4#
- 1...Bxf7
- 2.Sf5#
- 2.Sxf7#
- 2.Rd2#
- 1...Bf5
- 2.Sxf5#
- 1...Bg7
- 2.Be7#
- 2.Qe7#
- 1...Shf6
- 2.Qxf8#
- 1...Sef6
- 2.Bc7#
- 1...Bd3+!
- threat
- 1.Ra5?
- threat
- 2.Qf4#
- 1...Bxf7
- 2.Sf5#
- 2.Sxf7#
- 1...Bf5
- 2.Sxf5#
- 1...Bg7
- 2.Be7#
- 2.Qe7#
- 1...Shf6
- 2.Qxf8#
- 1...Sef6
- 2.Bc7#
- 1...Bd3+!
- threat
- 1.Rb5?
- threat
- 2.Qf4#
- 1...Bxf7
- 2.Sf5#
- 2.Sxf7#
- 1...Bf5
- 2.Sxf5#
- 1...Bg7
- 2.Be7#
- 2.Qe7#
- 1...Shf6
- 2.Qxf8#
- 1...Sef6
- 2.Bc7#
- 1...Bd3+!
- threat
- 1.Rc5?
- threat
- 2.R5xc6#
- 2.R8xc6#
- 2.Qf4#
- 1...Bxf7
- 2.Sf5#
- 2.Sxf7#
- 2.R5xc6#
- 2.R8xc6#
- 1...Be4
- 2.Qf4#
- 1...Bf5
- 2.Sxf5#
- 2.R5xc6#
- 2.R8xc6#
- 1...Bg7
- 2.Be7#
- 2.R5xc6#
- 2.R8xc6#
- 2.Qe7#
- 1...Shf6
- 2.R5xc6#
- 2.R8xc6#
- 2.Qxf8#
- 1...Sef6
- 2.Bc7#
- 2.R5xc6#
- 2.R8xc6#
- 1...Sc7
- 2.Bxc7#
- 2.Qf4#
- 1...Bd3+!
- threat
- 1.Qxe8?
- threat
- 2.Bc7#
- 1...c5
- 2.Rd5#
- 1...Bxe8!
- threat
- 1.Sc5?
- Keys
- 1.Rf3!
- threat
- 2.Qf4#
- 1...Bd3+
- 2.Rxd3#
- 1...Bxf7
- 2.Sf5#
- 2.Sxf7#
- 2.Rd3#
- 1...Bf5
- 2.Sxf5#
- 1...Bg7
- 2.Be7#
- 2.Qe7#
- 1...Shf6
- 2.Qxf8#
- 1...Sef6
- 2.Bc7#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- B(g);XR(E)::S(I),XB(g)
- B(g);XQ(K)::S(I),XB(g)
- S(i);N_GUARD,XP(F)::QAB(K),XB(k)
- S(i);N_GUARD::QAB(K),XB(k)
- S(j);N_GUARD::B(M)
- S(j);N_GUARD::B(M),XS(j)
- P(e);N_GUARD::R1(E)
- Tries
- Try
- S(J);
- Threat
- DUALS(3)
- Refutation
- B(g);XR(E)
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- B(g);XQ(K)::S(I),XB(g)
- P(h);XS(J)::QAR1(K)
- Refutation
- B(g);XR(E)
- Try
- S(J);
- Threat
- DUALS(3)
- Vars
- S(i);N_GUARD,XS(J)::QAB(K),XB(k)
- Refutation
- B(g);XR(E)
- Try
- S(J);
- Threat
- DUALS(2)
- Refutation
- B(g);XR(E)
- Try
- S(J);XB(k)
- Threat
- DUALS(3)
- Vars
- B(g);XQ(K)::S(I),XB(g)
- Refutation
- B(g);XR(E)
- Try
- B(B);
- Vars
- B(g);XR(E)::S(I),XB(g)
- B(g);XQ(K)::S(I),XB(g)
- S(i);N_GUARD,XP(F)::QAB(K),XB(k)
- S(i);N_GUARD::QAB(K),XB(k)
- S(j);N_GUARD::B(M)
- S(j);N_GUARD::B(M),XS(j)
- P(e);N_GUARD::R1(E)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- B(g);XR(E)::S(I),XB(g)
- B(g);XQ(K)::S(I),XB(g)
- S(i);N_GUARD,XP(F)::QAB(K),XB(k)
- S(i);N_GUARD::QAB(K),XB(k)
- S(j);N_GUARD::B(M)
- S(j);N_GUARD::B(M),XS(j)
- P(e);N_GUARD::R1(E)
- Refutation
- P(b);
- Try
- B(M);
- Threat
- B(M)
- Refutation
- P(h);XB(M)
- Try
- B(M);
- Threat
- B(M)
- Vars
- B(g);XQ(K)::S(I),XB(g)
- S(i);N_GUARD,XB(M)::QAB(K),XB(k)
- Refutation
- S(j);XB(M)
- Try
- R(E);XP(a)
- Threat
- QAB(K)
- Vars
- B(g);N_GUARD::S(I),XB(g)
- S(i);N_GUARD::QAB(K),XB(k)
- S(j);N_GUARD::B(M)
- Refutation
- B(g);CHECK
- Try
- R(E);
- Threat
- QAB(K)
- Vars
- B(g);N_GUARD::S(I),XB(g)
- S(i);N_GUARD::QAB(K),XB(k)
- S(j);N_GUARD::B(M)
- Refutation
- B(g);CHECK
- Try
- R(E);
- Threat
- QAB(K)
- Vars
- B(g);N_GUARD::S(I),XB(g)
- S(i);N_GUARD::QAB(K),XB(k)
- S(j);N_GUARD::B(M)
- Refutation
- B(g);CHECK
- Try
- R(E);
- Threat
- DUALS(3)
- Vars
- B(g);::QAB(K)
- Refutation
- B(g);CHECK
- Try
- Q(K);XS(j)
- Threat
- B(M)
- Vars
- P(e);N_GUARD::R1(E)
- Refutation
- B(g);XQ(K)
- Try
- Actual
- R(E);
- Threat
- QAB(K)
- Vars
- B(g);CHECK,N_GUARD::R(E),XB(g)
- B(g);N_GUARD::S(I),XB(g)
- S(i);N_GUARD::QAB(K),XB(k)
- S(j);N_GUARD::B(M)
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