MESON Chess Problem Database
Problem Display
PID: 24936 (6bK/2p5/R4Qp1/2pk3N/2p1r3/2b2P1B/8/B7 w - - 0 1)
Postma, Bernardus
1st HM., Bulletin Ouvrier des Echecs, 1948
#2
7 + 8
| 3105 | FIDE Album (1945-1955) | 1964 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Sf4#
- 1...Re2
- 2.Sf4#
- 1...Re3
- 2.Sf4#
- 1...Rd4
- 2.Qg5#
- 1...Rf4
- 2.Sxf4#
- 1...Re5
- 2.Qd8#
- 1...Re6
- 2.Sf4#
- 1...Re7
- 2.Sf4#
- 1...Re8
- 2.Sf4#
- 1...Be1
- 2.Qd8#
- 2.Qc6#
- 1...Bd2
- 2.Qd8#
- 2.Qc6#
- 1...Bb4
- 2.Qd8#
- 2.Qc6#
- 1...Ba5
- 2.Qd8#
- 2.Qc6#
- 1...Bxf6+
- 2.Sxf6#
- 1...Re1
- Tries
- 1.Bxc3?
- threat
- 2.Qd8#
- 2.Qc6#
- 1...Rd4
- 2.Qg5#
- 1...Re6
- 2.Sf4#
- 1...Re7
- 2.Sf4#
- 2.Qc6#
- 1...Re8
- 2.Sf4#
- 2.Qc6#
- 1...c6
- 2.Qd8#
- 2.Qxc6#
- 1...Be6!
- threat
- 1.Be6+?
- 1...Rxe6
- 2.Sf4#
- 1...Bxe6!
- 1...Rxe6
- 1.Bxc3?
- Keys
- 1.Bg2!
- threat
- 2.fxe4#
- 1...Bxf6+
- 2.Sxf6#
- 1...Re5
- 2.Qd8#
- 1...Re1
- 2.Sf4#
- 1...Re2
- 2.Sf4#
- 1...Re3
- 2.Sf4#
- 1...Rd4
- 2.Qg5#
- 1...Rf4
- 2.Sxf4#
- 1...Rg4
- 2.fxg4#
- 1...Rh4
- 2.f4#
- 1...Re6
- 2.Sf4#
- 1...Re7
- 2.Sf4#
- 1...Re8
- 2.Sf4#
- threat
- 1.Bg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD::S(D)
- R(c);N_PINQ(F),SBLOCK::QAR(F)
- R(c);N_GUARD::S(D),XR(c)
- B(a);CHECK,XQ(F)::S(D),XB(a)
- Tries
- Try
- B(A);N_SPINQ(F),XB(a)
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD::QAR(F)
- R(c);N_GUARD::S(D)
- Refutation
- B(h);
- Try
- B(C);CHECK
- Vars
- R(c);XB(C)::S(D)
- Refutation
- B(h);XB(C)
- Try
- Actual
- B(C);
- Threat
- P(B),XR(c)
- Vars
- B(a);CHECK,XQ(F)::S(D),XB(a)
- R(c);N_PINQ(F),SBLOCK::QAR(F)
- R(c);N_GUARD::S(D)
- R(c);N_GUARD::S(D),XR(c)
- R(c);OGATE::B(C)+P(B),XR(c)
- R(c);P_PINS(D)::B(C)+P(B)
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