MESON Chess Problem Database
Problem Display
PID: 87482 (8/rR3QpK/2pk1bR1/N2B4/pP1P3n/n3r1Nb/8/8 w - - 0 1)
Dijkstra, Bouwe
The Problemist, 1993
#2
9 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.Se4#
- 1...Rc3
- 2.Se4#
- 1...Rd3
- 2.Se4#
- 1...Rf3
- 2.Se4#
- 1...Re4
- 2.Sxe4#
- 1...Re6
- 2.Qd7#
- 1...Rxb7
- 2.Sxb7#
- 1...Bf1
- 2.Qd7#
- 1...Bg2
- 2.Qd7#
- 1...Bd7
- 2.Qxd7#
- 1...Sb1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sb5
- 2.Sc4#
- 1...Sf5
- 2.Qd7#
- 1...cxd5
- 2.Rb6#
- 1...c5
- 2.Rb6#
- 2.bxc5#
- 1...Rb3
- Tries
- 1.Sf5+?
- 1...Sxf5
- 2.Qd7#
- 1...Bxf5!
- 1...Sxf5
- 1.Bb3?
- threat
- 2.Qc7#
- 1...Rxb3
- 2.Se4#
- 1...Rxb7
- 2.Sxb7#
- 1...Re7
- 2.Qxe7#
- 1...Bd7
- 2.Qxd7#
- 1...Sc4
- 2.Sxc4#
- 1...Sb5
- 2.Sc4#
- 1...axb3!
- threat
- 1.Bc4?
- threat
- 2.Qc7#
- 1...Rxb7
- 2.Sxb7#
- 1...Sxc4
- 2.Sxc4#
- 1...Re7
- 2.Qxe7#
- 1...Bd7
- 2.Qxd7#
- 1...Sb5!
- threat
- 1.Be4?
- threat
- 2.Qe7#
- 1...Rxe4
- 2.Sxe4#
- 1...Rxb7
- 2.Sxb7#
- 1...Be6
- 2.Qc7#
- 1...Bd7
- 2.Qxd7#
- 1...Sf5
- 2.Qd7#
- 1...Sxg6!
- threat
- 1.Be6?
- threat
- 2.Qd7#
- 1...Rxb7
- 2.Sxb7#
- 1...Bxd4
- 2.Qc7#
- 1...Be7
- 2.Qxe7#
- 1...Bxe6!
- threat
- 1.Rxf6+?
- 1...Re6
- 2.Qd7#
- 1...Be6
- 2.Qd7#
- 1...gxf6!
- 1...Re6
- 1.Qxf6+?
- 1...Kxd5
- 2.Qd6#
- 1...Re6
- 2.Qe5#
- 2.Qd8#
- 1...Be6
- 2.Qd8#
- 1...gxf6!
- 1...Kxd5
- 1.Sf5+?
- Keys
- 1.Ba2!
- threat
- 2.Qc7#
- 1...Rxb7
- 2.Sxb7#
- 1...Rb3
- 2.Se4#
- 1...Re7
- 2.Qxe7#
- 1...Bd7
- 2.Qxd7#
- 1...Sc4
- 2.Sxc4#
- 1...Sb5
- 2.Sc4#
- threat
- 1.Ba2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_SPINB(h),S_CUTB(c)::QAR1(H)
- R(i);XR(G)::S(D),XR(i)
- B(c);N_GUARD::QAR1(H)
- B(c);N_GUARD::QAR1(H),XB(c)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(e);S_CUTB(c)::QAR1(H)
- P(f);OGATEB,XB(E)::R(G)
- Tries
- Try
- S(A);CHECK
- Vars
- S(e);XS(A)::QAR1(H)
- Refutation
- B(c);P_PINR(F),XS(A)
- Try
- B(E);
- Threat
- QAB1(H)
- Vars
- R(b);N_GUARD,XB(E)::S(A)
- R(i);XR(G)::S(D),XR(i)
- R(b);N_GUARD::QAB1(H),XR(b)
- B(c);N_GUARD::QAR1(H),XB(c)
- S(a);N_GUARD::S(D),XS(a)
- S(a);N_GUARD::S(D)
- Refutation
- P(d);XB(E)
- Try
- B(E);
- Threat
- QAB1(H)
- Vars
- R(i);XR(G)::S(D),XR(i)
- S(a);XB(E)::S(D),XS(a)
- R(b);N_GUARD::QAB1(H),XR(b)
- B(c);N_GUARD::QAR1(H),XB(c)
- Refutation
- S(a);
- Try
- B(E);
- Threat
- QAB1(H)
- Vars
- R(b);XB(E)::S(A),XR(b)
- R(i);XR(G)::S(D),XR(i)
- B(c);N_SPINB(h),SBLOCK::QAB1(H)
- B(c);N_GUARD::QAR1(H),XB(c)
- S(e);S_CUTB(c)::QAR1(H)
- Refutation
- S(e);N_SPINB(h),XR(F)
- Try
- B(E);N_PINB(h)
- Threat
- QAR1(H)
- Vars
- R(i);XR(G)::S(D),XR(i)
- B(h);XP(C)::QAB1(H)
- B(h);N_GUARD::QAB1(H),XB(h)
- Refutation
- B(c);XB(E)
- Try
- R(F);CHECK,XB(h)
- Vars
- R(b);P_SPINR(b)::QAR1(H)
- B(c);P_SPINB(c)::QAR1(H)
- Refutation
- P(j);XR(F)
- Try
- Q(H);CHECK,XB(h)
- Vars
- K(g);P-FLIGHT,XB(E)::QAR1(H)
- B(c);P_SPINB(c)::QAR2(H)
- Refutation
- P(j);P_PINR(G),P_SPINP(j),XQ(H)
- Try
- Actual
- B(E);
- Threat
- QAB1(H)
- Vars
- R(i);XR(G)::S(D),XR(i)
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::QAB1(H),XR(b)
- B(c);N_GUARD::QAR1(H),XB(c)
- S(a);N_GUARD::S(D),XS(a)
- S(a);N_GUARD::S(D)
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