MESON Chess Problem Database
Problem Display
PID: 211384 (8/2K2n1Q/4P3/3R1Rp1/4kB1q/2Pr3P/1nN1B3/3N4 w - - 0 1)
Haring, Jacobus
Schach-Echo, 1988
#2
11 + 6
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qf2
- 2.Sxf2#
- 1...Qxh3
- 2.Sf2#
- 1...Qxf4+
- 2.Rfe5#
- 1...Qg4
- 2.Sf2#
- 1...Qh5
- 2.Sf2#
- 1...Qh6
- 2.Sf2#
- 1...Qxh7
- 2.Sf2#
- 1...Rxc3+
- 2.Sxc3#
- 1...Re3
- 2.Rd4#
- 1...Rf3
- 2.Rd4#
- 1...Rg3
- 2.Sf2#
- 2.Rd4#
- 1...Rxh3
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 1...Se5
- 2.Rdxe5#
- 1...Sd6
- 2.Rde5#
- 1...Sh6
- 2.Rde5#
- 1...Sd8
- 2.Rde5#
- 1...Sh8
- 2.Rde5#
- 1...gxf4
- 2.Rfe5#
- 2.Rh5#
- 1...Qf2
- Tries
- 1.Bf3+?
- 1...Rxf3
- 2.Rd4#
- 1...Kxf3!
- 1...Rxf3
- 1.Bc1?
- threat
- 2.Rfe5#
- 1...Rxc3+
- 2.Sxc3#
- 1...Qxh7
- 2.Sf2#
- 1...Se5
- 2.Rdxe5#
- 2.Rfxe5#
- 1...Rd2
- 2.Bf3#
- 1...Re3
- 2.Rd4#
- 1...Rxd5!
- threat
- 1.Bd2?
- threat
- 2.Rfe5#
- 1...Rxc3+
- 2.Sxc3#
- 1...Qxh7
- 2.Sf2#
- 1...Rxd2
- 2.Bf3#
- 1...Se5
- 2.Rdxe5#
- 2.Rfxe5#
- 1...Re3
- 2.Rd4#
- 1...Rxd5!
- threat
- 1.Bh2?
- threat
- 2.Rfe5#
- 1...Rxc3+
- 2.Sxc3#
- 1...Qxh7
- 2.Sf2#
- 1...Se5
- 2.Rdxe5#
- 2.Rfxe5#
- 1...Rg3
- 2.Sf2#
- 2.Rd4#
- 1...Qg3+!
- threat
- 1.Be3?
- threat
- 2.Bf3#
- 2.Rfe5#
- 1...Qg3+
- 2.Rfe5#
- 1...Qf4+
- 2.Rfe5#
- 1...Rxc3+
- 2.Sxc3#
- 1...Qxh3
- 2.Sf2#
- 2.Rfe5#
- 1...Qxh7
- 2.Sf2#
- 2.Bf3#
- 1...Rxe3
- 2.Rd4#
- 1...Se5
- 2.Rdxe5#
- 2.Rfxe5#
- 1...Qf2
- 2.Sxf2#
- 2.Rfe5#
- 1...Qg4
- 2.Sf2#
- 2.Rfe5#
- 1...Qh5
- 2.Sf2#
- 2.Rfe5#
- 1...Rd4
- 2.Rxd4#
- 2.Rfe5#
- 1...g4
- 2.Rfe5#
- 2.Rh5#
- 1...Rxd5!
- threat
- 1.Bg3?
- threat
- 2.Sf2#
- 2.Rfe5#
- 1...Qf4+
- 2.Rfe5#
- 1...Rxc3+
- 2.Sxc3#
- 1...Qxh7
- 2.Sf2#
- 1...Rxd1
- 2.Bf3#
- 2.Rfe5#
- 1...Rxg3
- 2.Sf2#
- 2.Rd4#
- 1...Sxd1
- 2.Bxd3#
- 2.Rfe5#
- 1...Se5
- 2.Rdxe5#
- 2.Rfxe5#
- 1...Rf3
- 2.Bxf3#
- 2.Rd4#
- 2.Rfe5#
- 1...Qxg3+!
- threat
- 1.Bxg5?
- threat
- 2.Rfe5#
- 2.Qxh4#
- 1...Qg3+
- 2.Rfe5#
- 1...Qf4+
- 2.Rfe5#
- 1...Rxc3+
- 2.Sxc3#
- 1...Qxg5
- 2.Sf2#
- 1...Qxh3
- 2.Sf2#
- 2.Rfe5#
- 1...Qxh7
- 2.Sf2#
- 1...Rxh3
- 2.Rd4#
- 2.Rfe5#
- 1...Sxg5
- 2.Rde5#
- 2.Qxh4#
- 1...Se5
- 2.Rdxe5#
- 2.Rfxe5#
- 1...Qe1
- 2.Rfe5#
- 1...Qf2
- 2.Sxf2#
- 2.Rfe5#
- 1...Qg4
- 2.Sf2#
- 2.Rfe5#
- 1...Qh5
- 2.Sf2#
- 2.Rfe5#
- 1...Qh6
- 2.Sf2#
- 2.Rfe5#
- 1...Rf3
- 2.Bxf3#
- 2.Rd4#
- 2.Rfe5#
- 1...Rg3
- 2.Sf2#
- 2.Rd4#
- 2.Rfe5#
- 1...Sh6
- 2.Rde5#
- 2.Rfe5#
- 1...Rxd5!
- threat
- 1.Rxg5+?
- 1...Kxf4
- 2.Qf5#
- 2.Qxh4#
- 1...Qxh7!
- 1...Kxf4
- 1.Rxf7+?
- 1...Qxh7
- 2.Re5#
- 1...Kxd5!
- 1...Qxh7
- 1.Bf3+?
- Keys
- 1.Bd6!
- 1...Rxc3+
- 2.Sxc3#
- 1...Qxh3
- 2.Sf2#
- 1...Qxh7
- 2.Sf2#
- 1...Rxd1
- 2.Bf3#
- 1...Rxh3
- 2.Rd4#
- 1...Rxd5
- 2.Rf4#
- 1...Sxd1
- 2.Bxd3#
- 1...Sxd6
- 2.Rde5#
- 1...Se5
- 2.Rdxe5#
- 1...Qe1
- 2.Rxg5#
- 1...Qf2
- 2.Sxf2#
- 1...Qg3
- 2.Rxg5#
- 1...Qf4
- 2.Rfe5#
- 1...Qg4
- 2.Sf2#
- 1...Qh5
- 2.Sf2#
- 1...Qh6
- 2.Sf2#
- 1...Rd2
- 2.Bf3#
- 1...Re3
- 2.Rd4#
- 1...Rf3
- 2.Bxf3#
- 2.Rd4#
- 1...Rg3
- 2.Sf2#
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 1...Sa4
- 2.Bxd3#
- 1...Sc4
- 2.Bxd3#
- 1...Sh6
- 2.Rde5#
- 1...Sd8
- 2.Rde5#
- 1...Sh8
- 2.Rde5#
- 1...g4
- 2.Rh5#
- 1...Rxc3+
- 1.Bd6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- Q(d);N_GUARD::S(A),XQ(d)
- Q(d);N_GUARD,XP(E)::S(A)
- Q(d);CHECK,SBLOCK,XB(F)::QAB(K)+R(H),DCHECK
- Q(d);N_GUARD::S(A)
- Q(d);N_GUARD,XQ(K)::S(A)
- R(b);CHECK,XP(D)::S(A),XR(b)
- R(b);N_GUARD::R1(G)
- R(b);N_GUARD,XP(E)::R1(G)
- R(b);N_GUARD::R1(G),XR(b)
- S(f);N_GUARD::R1(G),XS(f)
- S(f);N_GUARD::R1(G)
- Tries
- Try
- B(C);CHECK
- Vars
- R(b);SBLOCK,XB(C)::R1(G)
- Refutation
- K(c);S_FLIGHT,XB(C)
- Try
- B(F);
- Threat
- QAB(K)+R(H),DCHECK
- Vars
- R(b);CHECK,XP(D)::S(A),XR(b)
- Q(d);N_GUARD,XQ(K)::S(A)
- R(b);N_GUARD::B(C)
- R(b);N_GUARD::R1(G)
- Refutation
- R(b);XR(G)
- Try
- B(F);
- Threat
- QAB(K)+R(H),DCHECK
- Vars
- R(b);CHECK,XP(D)::S(A),XR(b)
- Q(d);N_GUARD,XQ(K)::S(A)
- R(b);N_GUARD,XB(F)::B(C)
- R(b);N_GUARD::R1(G)
- Refutation
- R(b);XR(G)
- Try
- B(F);
- Threat
- QAB(K)+R(H),DCHECK
- Vars
- R(b);CHECK,XP(D)::S(A),XR(b)
- Q(d);N_GUARD,XQ(K)::S(A)
- Refutation
- Q(d);CHECK
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK::QAB(K)+R(H),DCHECK
- R(b);CHECK,XP(D)::S(A),XR(b)
- R(b);N_GUARD,XB(F)::R1(G)
- Refutation
- R(b);XR(G)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK::QAB(K)+R(H),DCHECK
- R(b);CHECK,XP(D)::S(A),XR(b)
- Q(d);XQ(K)::S(A)
- Refutation
- Q(d);CHECK,XB(F)
- Try
- B(F);XP(e)
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK::QAB(K)+R(H),DCHECK
- R(b);CHECK,XP(D)::S(A),XR(b)
- Q(d);N_GUARD,XB(F)::S(A)
- Q(d);N_GUARD,XQ(K)::S(A)
- Q(d);::QAB(K)+R(H),DCHECK
- Refutation
- R(b);XR(G)
- Try
- R(H);CHECK,XP(e)
- Refutation
- Q(d);XQ(K)
- Try
- R(H);CHECK,XS(f)
- Vars
- Q(d);P_PINR(H),XQ(K)::R1(G)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Actual
- B(F);
- Vars
- R(b);CHECK,XP(D)::S(A),XR(b)
- Q(d);N_GUARD,XP(E)::S(A)
- Q(d);N_GUARD,XQ(K)::S(A)
- R(b);N_GUARD,XS(A)::B(C)
- R(b);N_GUARD,XP(E)::R1(G)
- R(b);SBLOCK,XR(G)::QAB(K)+R(H),DCHECK
- S(a);N_GUARD,XS(A)::B(C),XR(b)
- S(f);N_GUARD,XB(F)::R1(G)
- S(f);N_GUARD::R1(G),XS(f)
- Q(d);N_GUARD::QAB(K)+R(H),XP(e)
- Q(d);N_GUARD::S(A),XQ(d)
- Q(d);N_GUARD,P_PINB(F)::QAB(K)+R(H),XP(e)
- Q(d);P_PINB(F),SBLOCK::QAB(K)+R(H),DCHECK
- Q(d);N_GUARD::S(A)
- R(b);N_GUARD::B(C)
- R(b);N_GUARD::R1(G)
- R(b);N_GUARD::R1(G),XR(b)
- S(a);N_GUARD::B(C),XR(b)
- S(f);N_GUARD::R1(G)
- P(e);OGATE::QAB(K)+R(H)
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