MESON Chess Problem Database
Problem Display
PID: 84678 (8/2q2P2/Q1bPPP2/Rrpk2NR/4N3/PP3Kp1/BB6/8 w - - 0 1)
Fillery, William Edmund Frank
Northwest Chess, 1978
#2
14 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxb3+
- 2.Bxb3#
- 2.Qd3#
- 1...Rb4
- 2.Rxc5#
- 1...Rxa5
- 2.Qd3#
- 2.Qc4#
- 1...Rb6
- 2.Rxc5#
- 2.Qd3#
- 2.Qc4#
- 2.b4#
- 1...Rb7
- 2.Rxc5#
- 2.Qd3#
- 2.Qc4#
- 2.b4#
- 1...Rb8
- 2.Rxc5#
- 2.Qd3#
- 2.Qc4#
- 2.b4#
- 1...c4
- 2.bxc4#
- 1...Rxb3+
- Tries
- 1.Rxb5?
- threat
- 2.Rxc5#
- 2.b4#
- 1...Qxd6
- 2.b4#
- 1...Qa5
- 2.b4#
- 1...Qb6
- 2.b4#
- 1...Qa7
- 2.b4#
- 1...Bb7
- 2.b4#
- 1...Bd7
- 2.b4#
- 1...Ba8
- 2.b4#
- 1...Be8
- 2.b4#
- 1...Bxb5!
- threat
- 1.Rh1?
- threat
- 2.Rd1#
- 1...Rxb3+
- 2.Bxb3#
- 2.Qd3#
- 1...Rb4
- 2.Rxc5#
- 1...Qxa5!
- threat
- 1.Qxb5?
- threat
- 2.Qd3#
- 2.Qc4#
- 2.Qxc5#
- 2.b4#
- 1...Qxa5
- 2.Qd3#
- 2.Qc4#
- 2.b4#
- 1...Qxd6
- 2.Qd3#
- 2.Qc4#
- 2.b4#
- 1...Qb6
- 2.Qd3#
- 2.Qc4#
- 2.b4#
- 1...Qa7
- 2.Qd3#
- 2.Qc4#
- 2.b4#
- 1...Bb7
- 2.b4#
- 1...Bd7
- 2.b4#
- 1...Ba8
- 2.b4#
- 1...Be8
- 2.b4#
- 1...Bxb5!
- threat
- 1.dxc7?
- 1...Rxb3+
- 2.Bxb3#
- 2.Qd3#
- 1...Rxa5
- 2.Qd3#
- 2.Qc4#
- 1...Rb4
- 2.Rxc5#
- 1...Rb6
- 2.Rxc5#
- 2.Qd3#
- 2.Qc4#
- 2.b4#
- 1...Rb7
- 2.Rxc5#
- 2.Qd3#
- 2.Qc4#
- 2.b4#
- 1...Rb8
- 2.Rxc5#
- 2.Qd3#
- 2.Qc4#
- 2.b4#
- 1...Bb7
- 2.Sh3#
- 2.Sh7#
- 2.Qd6#
- 1...Bd7
- 2.Sh3#
- 2.Sh7#
- 2.Qd6#
- 1...Ba8
- 2.Sh3#
- 2.Sh7#
- 2.Qd6#
- 1...Be8
- 2.Sh3#
- 2.Sh7#
- 2.Qd6#
- 1...c4
- 2.bxc4#
- 1...g2!
- 1...Rxb3+
- 1.Rxb5?
- Keys
- 1.Sxc5!
- threat
- 2.Sge4#
- 1...Kxc5+
- 2.Se4#
- 1...Kxd6+
- 2.Sge4#
- 1...Rxb3+
- 2.Qd3#
- 1...Qxd6
- 2.b4#
- 1...Qxf7
- 2.Sxf7#
- 1...Rxc5
- 2.Qd3#
- threat
- 1.Sxc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- R(b);OGATE,P_SPINP(c)::R1(G),XP(c)
- P(c);OGATE,P_SPINR(b)::P(D),XP(c)
- Tries
- Try
- R(G);P_PINP(c),XR(b)
- Threat
- DUALS(2)
- Vars
- Q(f);XP(K)::B(A)+P(D)
- Q(f);::B(A)+P(D)
- B(e);::B(A)+P(D)
- Refutation
- B(e);N_SPINP(c),XR(G)
- Try
- R(I);
- Threat
- R(I)
- Vars
- R(b);OGATE,P_SPINP(c)::R1(G),XP(c)
- Refutation
- Q(f);XR(G)
- Try
- Q(J);P_PINP(c),XR(b)
- Threat
- DUALS(4)
- Vars
- B(e);::B(A)+P(D)
- Refutation
- B(e);N_SPINP(c),XQ(J)
- Try
- P(K);XQ(f)
- Vars
- R(b);OGATE,P_SPINP(c)::R1(G),XP(c)
- P(c);OGATE,P_SPINR(b)::P(D),XP(c)
- Refutation
- P(a);
- Try
- Actual
- S(F);XP(c)
- Threat
- R(I)+S(H)
- Vars
- K(d);CHECK,P-FLIGHT,P_SPINR(b),XS(F)::R(I)+S(H),DCHECK
- K(d);CHECK,P-FLIGHT,P_SPINB(e),XP(K)::S(H)
- R(b);CHECK,OGATE,P_SPINR(b),XP(D)::QAR2(J)
- Q(f);SBLOCK,XP(K)::B(A)+P(D)
- Q(f);P_PINP(M),XP(N)::R(I)+S(H),XQ(f)
- R(b);OGATE,P_SPINR(b),XS(F)::QAR2(J)
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