MESON Chess Problem Database
Problem Display
PID: 42899 (B7/3pb3/2p1NRn1/3P3R/4k3/7r/2P1NP1P/BQ1K4 w - - 0 1)
Hartong, Jan
Scaecvaria, 1961
#2
12 + 6
| 3147 | Chess Problems: Introduction to an Art | 1963 |
| 145 | StrateGems | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Rxh2
- 2.Sc3#
- 2.Sg3#
- 2.c3#
- 2.c4#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...Rc3
- 2.Sxc3#
- 1...Rd3+
- 2.cxd3#
- 1...Rg3
- 2.Sxg3#
- 1...Rh4
- 2.Sc3#
- 2.Sg3#
- 2.c3#
- 2.c4#
- 1...Rxh5
- 2.c4#
- 1...Bb4
- 2.Qxb4#
- 1...Bc5
- 2.Sxc5#
- 1...Bd8
- 2.Sc5#
- 2.Qb4#
- 1...Sf4
- 2.Rxf4#
- 1...Sh4
- 2.Re5#
- 2.Rf4#
- 1...Se5
- 2.Rxe5#
- 1...Sf8
- 2.Re5#
- 2.Rf4#
- 1...Sh8
- 2.Re5#
- 2.Rf4#
- 1...cxd5
- 2.Sg5#
- 2.Bxd5#
- 1...c5
- 2.Sg5#
- 2.d6#
- 1...d6
- 2.Qb4#
- 1...Rxh2
- Tries
- 1.Qb3?
- threat
- 2.Sg5#
- 2.Qc4#
- 1...Rd3+
- 2.Qxd3#
- 2.cxd3#
- 1...Rxh5
- 2.Sg3#
- 2.Qc4#
- 2.Qd3#
- 2.Qf3#
- 2.f3#
- 1...Bxf6
- 2.Sc5#
- 1...dxe6
- 2.Qc4#
- 1...Rc3
- 2.Sxc3#
- 1...Rg3
- 2.Sxg3#
- 2.Qc4#
- 1...Bc5
- 2.Sxc5#
- 2.Sg5#
- 1...Sf4
- 2.Sg5#
- 2.Re5#
- 2.Rxf4#
- 1...Se5
- 2.Sg5#
- 2.Rxe5#
- 2.Rf4#
- 1...Rxb3!
- threat
- 1.Qb5?
- threat
- 2.Sg5#
- 2.Qc4#
- 1...Rd3+
- 2.Qxd3#
- 2.cxd3#
- 1...Rxh5
- 2.Sg3#
- 2.Qd3#
- 2.Qc4#
- 1...cxb5
- 2.Sg5#
- 2.d6#
- 1...dxe6
- 2.Qc4#
- 1...Sf4
- 2.Sg5#
- 2.Rxf4#
- 1...Rc3
- 2.Sxc3#
- 1...Rg3
- 2.Sxg3#
- 2.Qc4#
- 1...Bc5
- 2.Sxc5#
- 1...Se5
- 2.Sg5#
- 2.Rxe5#
- 2.Rf4#
- 1...Bxf6!
- threat
- 1.f3+?
- 1...Ke3
- 2.Bd4#
- 1...Rxf3!
- 1...Ke3
- 1.Qb3?
- Keys
- 1.dxc6!
- threat
- 2.cxd7#
- 1...Rd3+
- 2.cxd3#
- 1...Rxh5
- 2.c4#
- 1...dxc6
- 2.Bxc6#
- 1...dxe6
- 2.c7#
- 1...Sf4
- 2.Rxf4#
- 1...Se5
- 2.Rxe5#
- 1...Rc3
- 2.Sxc3#
- 1...Ra3
- 2.c3#
- 1...Rb3
- 2.cxb3#
- 1...d5
- 2.Sg5#
- 1...d6
- 2.Qb4#
- threat
- 1.dxc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(a);N_GUARD::QAB(B)+P(D)
- R(a);OGATE::QAB(B)+P(D),XR(a)
- R(a);N_GUARD::S(E),XR(a)
- R(a);CHECK,OGATE::P(D),XR(a)
- R(a);N_GUARD,XR(I)::QAB(B)+P(D)
- B(f);N_GUARD::QAR(B),XB(f)
- B(f);N_GUARD::S(J),XB(f)
- S(d);N_GUARD::R1(K),XS(d)
- S(d);N_GUARD::R1(I),XS(d)
- P(e);S_CUTB(f)::QAR(B)
- Tries
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- B(f);N_GUARD,XR(K)::S(J)
- P(e);XS(J)::QAR2(B)
- R(a);N_GUARD::S(E),XR(a)
- Refutation
- R(a);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(e);XS(J)::QAR2(B)
- R(a);N_GUARD::S(E),XR(a)
- B(f);N_GUARD::S(J),XB(f)
- Refutation
- B(f);XR(K)
- Try
- P(F);CHECK
- Vars
- K(b);P-FLIGHT::B(A)
- Refutation
- R(a);XP(F)
- Try
- Actual
- P(H);XP(c)
- Threat
- B(L)+P(H),XP(e)
- Vars
- R(a);CHECK,OGATE::P(D),XR(a)
- R(a);N_GUARD,XR(I)::QAB(B)+P(D)
- P(e);OGATE,P_SPINP(e),XP(H)::B(L),XP(e)
- P(e);N_GUARD,XS(J)::B(L)+P(H)
- S(d);N_GUARD::R1(K),XS(d)
- S(d);N_GUARD::R1(I),XS(d)
- R(a);N_GUARD::S(E),XR(a)
- R(a);N_GUARD::QAB(B)+P(D)
- R(a);OGATE::QAB(B)+P(D),XR(a)
- P(e);SBLOCK::S(J)
- P(e);S_CUTB(f)::QAR(B)
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