MESON Chess Problem Database
Problem Display
PID: 87518 (6n1/3Q1N2/7p/2p1BR1P/2Npb1kr/7p/7K/8 w - - 0 1)
Forti, Mario
The Problemist, 1968
#2
7 + 8
| 23 | Die Schwalbe | 2008 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxh5
- 2.Rf4#
- 1...Bf3
- 2.Rg5#
- 1...Sf6
- 2.Sxh6#
- 1...Se7
- 2.Sxh6#
- 1...d3
- 2.Se3#
- 1...Rxh5
- Tries
- 1.Sd2?
- threat
- 2.Rg5#
- 1...Rxh5
- 2.Rf4#
- 1...Bxf5!
- threat
- 1.Bd6?
- threat
- 2.Sce5#
- 2.Sfe5#
- 1...Rxh5
- 2.Rf4#
- 1...Bxf5!
- threat
- 1.Bc7?
- threat
- 2.Sce5#
- 2.Sfe5#
- 1...Rxh5
- 2.Rf4#
- 1...Bxf5!
- threat
- 1.Bb8?
- threat
- 2.Sce5#
- 2.Sfe5#
- 1...Rxh5
- 2.Rf4#
- 1...Bxf5!
- threat
- 1.Rf1+?
- 1...Bf5
- 2.Qxf5#
- 1...Kxh5!
- 1...Bf5
- 1.Rf2+?
- 1...Bf5
- 2.Qxf5#
- 1...Kxh5!
- 1...Bf5
- 1.Rf6+?
- 1...Bf5
- 2.Qxf5#
- 1...Kxh5!
- 1...Bf5
- 1.Qe6?
- threat
- 2.Qg6#
- 1...Rxh5
- 2.Rf4#
- 1...Sf6
- 2.Sxh6#
- 1...Se7
- 2.Sxh6#
- 1...Bxf5!
- threat
- 1.Qxd4?
- threat
- 2.Se3#
- 2.Qxe4#
- 1...Kxf5
- 2.Qd7#
- 1...Rxh5
- 2.Rf4#
- 2.Qxe4#
- 1...Sf6
- 2.Se3#
- 2.Sxh6#
- 1...cxd4!
- threat
- 1.Qd6?
- threat
- 2.Qg6#
- 1...Kxf5
- 2.Qg6#
- 2.Qd7#
- 1...Rxh5
- 2.Rf4#
- 1...Sf6
- 2.Sxh6#
- 1...Se7
- 2.Sxh6#
- 1...Bxf5!
- threat
- 1.Sd2?
- Keys
- 1.Qa4!
- 1...Kxf5
- 2.Qd7#
- 1...Rxh5
- 2.Rf4#
- 1...Bxf5
- 2.Qd1#
- 1...Bb1
- 2.Se3#
- 1...Bh1
- 2.Se3#
- 1...Bc2
- 2.Se3#
- 1...Bg2
- 2.Se3#
- 1...Bd3
- 2.Se3#
- 1...Bf3
- 2.Se3#
- 1...Bd5
- 2.Se3#
- 1...Bc6
- 2.Se3#
- 1...Bb7
- 2.Se3#
- 1...Ba8
- 2.Se3#
- 1...Sf6
- 2.Sxh6#
- 1...Se7
- 2.Sxh6#
- 1...d3
- 2.Se3#
- 1...Kxf5
- 1.Qa4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- R(e);SBLOCK,XP(E)::QAB(F)+R(D),DCHECK
- B(c);SBLOCK::QAB(F)+R(D),DCHECK
- S(h);N_GUARD::S(G),XP(g)
- P(b);N_GUARD::S(B)
- Tries
- Try
- S(B);
- Threat
- QAB(F)+R(D),DCHECK
- Vars
- R(e);SBLOCK,XP(E)::QAB(F)+R(D),DCHECK
- Refutation
- B(c);P_SPINB(c),XR(D)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XP(E)::QAB(F)+R(D),DCHECK
- Refutation
- B(c);P_SPINB(c),XR(D)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XP(E)::QAB(F)+R(D),DCHECK
- Refutation
- B(c);P_SPINB(c),XR(D)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XP(E)::QAB(F)+R(D),DCHECK
- Refutation
- B(c);P_SPINB(c),XR(D)
- Try
- R(D);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAB1(F),XB(c)
- Refutation
- K(d);S_FLIGHT,XP(E)
- Try
- R(D);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAB1(F),XB(c)
- Refutation
- K(d);S_FLIGHT,XP(E)
- Try
- R(D);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAB1(F),XB(c)
- Refutation
- K(d);S_FLIGHT,XP(E)
- Try
- Q(F);
- Threat
- QAR2(F)
- Vars
- R(e);SBLOCK,XP(E)::QAB(F)+R(D),DCHECK
- S(h);N_GUARD::S(G),XP(g)
- Refutation
- B(c);P_SPINB(c),XR(D)
- Try
- Q(F);P_PINB(c),XP(b)
- Threat
- DUALS(2)
- Vars
- K(d);N_SPINB(c),OGATEB,S_FLIGHT,XR(D)::QAB(F)
- Refutation
- P(f);N_SPINB(c),XQ(F)
- Try
- Q(F);
- Threat
- QAR2(F)
- Vars
- R(e);SBLOCK,XP(E)::R1(D)
- S(h);N_GUARD::S(G),XP(g)
- Refutation
- B(c);XR(D)
- Try
- Actual
- Q(F);
- Vars
- K(d);OGATEB,S_FLIGHT,XR(D)::QAB(F)
- R(e);SBLOCK,XP(E)::R1(D)
- B(c);N_GUARD,SBLOCK,XR(D)::QAB(F)
- B(c);S_CUTP(b)::S(B)
- S(h);N_GUARD::S(G),XP(g)
- P(b);N_GUARD::S(B)
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