MESON Chess Problem Database
Problem Display
PID: 166912 (1r4R1/2r5/8/5pBp/5PkN/4QRP1/4BP1K/bb5n w - - 0 1)
Haring, Jacobus
Die Schwalbe, 1965
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Bd8#
- 1...Rb2
- 2.Be7#
- 1...Sxf2
- 2.Rxf2#
- 1...Sxg3
- 2.Rxg3#
- 1...Rc3
- Tries
- 1.Bf6+?
- 1...Rg7
- 2.Rxg7#
- 1...Rxg8!
- 1...Rg7
- 1.Be7+?
- 1...Bg7
- 2.Rxg7#
- 1...Rxg8!
- 1...Bg7
- 1.Qd2?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Sxg3
- 2.Rxg3#
- 1...Rc3
- 2.Bd8#
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Re7
- 2.Re3#
- 1...Rb3
- 2.Rxb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Re8
- 2.Re3#
- 1...Bc3
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Bd3
- 2.Rxd3#
- 1...Be4!
- threat
- 1.Qd4?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Sxg3
- 2.Rxg3#
- 1...Rc2
- 2.Bd8#
- 1...Rc3
- 2.Bd8#
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Re7
- 2.Re3#
- 1...Rb2
- 2.Be7#
- 1...Rb3
- 2.Be7#
- 2.Rxb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Re8
- 2.Re3#
- 1...Bc3
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Bd3
- 2.Rxd3#
- 1...Be4!
- threat
- 1.Qc5?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Sxg3
- 2.Rxg3#
- 1...Re7
- 2.Re3#
- 1...Rb2
- 2.Be7#
- 1...Rb3
- 2.Rxb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Re8
- 2.Re3#
- 1...Bc3
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Bd3
- 2.Rxd3#
- 1...Be4!
- threat
- 1.Qc3?
- threat
- 2.Rd3#
- 2.Re3#
- 1...Sxg3
- 2.Rxg3#
- 1...Re7
- 2.Re3#
- 1...Rb2
- 2.Be7#
- 1...Re8
- 2.Re3#
- 1...Bd3
- 2.Rxd3#
- 1...Be4!
- threat
- 1.Qe4?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Sxg3
- 2.Rxg3#
- 1...Rc2
- 2.Qxf5#
- 1...Rc3
- 2.Bd8#
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Rb2
- 2.Be7#
- 1...Rb3
- 2.Rxb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Bc3
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Bd3
- 2.Rxd3#
- 1...Bxe4!
- threat
- 1.Qe5?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Sxg3
- 2.Rxg3#
- 1...Rc2
- 2.Bd8#
- 2.Qxf5#
- 1...Rc3
- 2.Bd8#
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Rb2
- 2.Be7#
- 1...Rb3
- 2.Be7#
- 2.Rxb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Bc3
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Bd3
- 2.Rxd3#
- 1...Be4!
- threat
- 1.Qe6?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Sxg3
- 2.Rxg3#
- 1...Rc2
- 2.Qxf5#
- 1...Rc3
- 2.Bd8#
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Rb2
- 2.Be7#
- 1...Rb3
- 2.Rxb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Bc3
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Bd3
- 2.Rxd3#
- 1...Be4!
- threat
- 1.Qe8?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Rxe8
- 2.Re3#
- 1...Sxg3
- 2.Rxg3#
- 1...Rc2
- 2.Bf6#
- 1...Rc3
- 2.Bf6#
- 2.Bh6#
- 2.Be7#
- 2.Bd8#
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Re7
- 2.Re3#
- 1...Rb2
- 2.Be7#
- 1...Rb3
- 2.Rxb3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 1...Bc3
- 2.Rxc3#
- 2.Rd3#
- 2.Re3#
- 1...Bd3
- 2.Rxd3#
- 1...Be4!
- threat
- 1.Bf6+?
- Keys
- 1.Qd3!
- threat
- 2.Re3#
- 1...Bxd3
- 2.Rxd3#
- 1...Sxg3
- 2.Rxg3#
- 1...Rc2
- 2.Qxf5#
- 1...Rb2
- 2.Be7#
- threat
- 1.Qd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- R(g);N_GUARD,S_CUTB(a)::R(J)+B(I)
- R(h);N_GUARD,S_CUTB(a)::R(J)+B(I)
- S(c);OGATE,XP(B)::B(A)+R(E),XS(c)
- S(c);OGATE,XP(F)::B(A)+R(E),DCHECK,XS(c)
- Tries
- Try
- B(I);CHECK
- Vars
- R(g);N_GUARD,P_SPINR(g)::R(J),XR(g)
- Refutation
- R(h);XR(J)
- Try
- B(I);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::R(J),XB(a)
- Refutation
- R(h);XR(J)
- Try
- Q(D);
- Threat
- DUALS(5)
- Vars
- S(c);OGATE,XP(F)::B(A)+R(E),DCHECK,XS(c)
- R(g);::B(A)+R(E)
- R(h);::B(A)+R(E)
- B(b);::B(A)+R(E),XB(b)
- Refutation
- B(b);
- Try
- Q(D);
- Threat
- DUALS(5)
- Vars
- S(c);OGATE,XP(F)::B(A)+R(E),DCHECK,XS(c)
- R(g);N_GUARD::R(J)+B(I)
- R(g);::B(A)+R(E)
- R(h);N_GUARD::R(J)+B(I)
- R(h);::B(A)+R(E)
- B(b);::B(A)+R(E),XB(b)
- Refutation
- B(b);
- Try
- Q(D);
- Threat
- DUALS(5)
- Vars
- S(c);OGATE,XP(F)::B(A)+R(E),DCHECK,XS(c)
- R(g);::B(A)+R(E)
- R(h);N_GUARD,S_CUTB(a)::R(J)+B(I)
- R(h);::B(A)+R(E)
- B(b);::B(A)+R(E),XB(b)
- Refutation
- B(b);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(c);OGATE,XP(F)::B(A)+R(E),DCHECK,XS(c)
- R(g);::B(A)+R(E)
- R(h);N_GUARD::R(J)+B(I)
- R(h);::B(A)+R(E)
- B(b);::B(A)+R(E),XB(b)
- Refutation
- B(b);
- Try
- Q(D);
- Threat
- DUALS(5)
- Vars
- S(c);OGATE,XP(F)::B(A)+R(E),DCHECK,XS(c)
- R(g);S_CUTB(b)::QAB1(D),XP(e)
- R(h);N_GUARD,S_CUTB(a)::R(J)+B(I)
- B(b);::B(A)+R(E),XB(b)
- Refutation
- B(b);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(5)
- Vars
- S(c);OGATE,XP(F)::B(A)+R(E),DCHECK,XS(c)
- R(h);N_GUARD::R(J)+B(I)
- B(b);::B(A)+R(E),XB(b)
- Refutation
- B(b);
- Try
- Q(D);P_PINP(e)
- Threat
- DUALS(5)
- Vars
- S(c);OGATE,XP(F)::B(A)+R(E),DCHECK,XS(c)
- R(g);S_CUTB(b)::QAB1(D),XP(e)
- R(h);N_GUARD,S_CUTB(a)::R(J)+B(I)
- B(b);::B(A)+R(E),XB(b)
- Refutation
- B(b);
- Try
- Q(D);
- Threat
- DUALS(5)
- Vars
- R(h);XQ(D)::B(A)+R(E)
- S(c);OGATE,XP(F)::B(A)+R(E),DCHECK,XS(c)
- R(g);N_GUARD::R(J)+B(I)
- R(g);::B(A)+R(E)
- R(h);S_CUTB(a)::R(J)+B(I)
- B(b);::B(A)+R(E),XB(b)
- Refutation
- B(b);
- Try
- Actual
- Q(D);
- Threat
- B(A)+R(E)
- Vars
- B(b);OGATE,XQ(D)::B(A)+R(E),XB(b)
- S(c);OGATE,XP(F)::B(A)+R(E),DCHECK,XS(c)
- R(g);S_CUTB(b)::QAB1(D),XP(e)
- R(h);N_GUARD,S_CUTB(a)::R(J)+B(I)
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