MESON Chess Problem Database
Problem Display
PID: 132068 (8/B1NKpp2/p7/k2BRQ2/1p5r/1P6/1N6/r2q4 w - - 0 1)
Driver, John Edward
The Field, 1955
(First published on Thu Sep 1 1955)
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Qc2
- 2.Bc4#
- 1...Qxb3
- 2.Bxb3#
- 2.Bc4#
- 1...Qf3
- 2.Bxf3#
- 2.Be4#
- 1...Qg4
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bxf7#
- 2.Ba8#
- 1...Qh5
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bxf7#
- 2.Ba8#
- 1...Qb1
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bxf7#
- 2.Ba8#
- 1...Qc1
- 2.Bc4#
- 1...Qe1
- 2.Be4#
- 1...Qf1
- 2.Bc4#
- 1...Qh1
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 1...Qxd5+
- 2.Rxd5#
- 1...Rh1
- 2.Sc4#
- 1...Rh2
- 2.Sc4#
- 1...Rh3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Rh5
- 2.Sc4#
- 1...Rh6
- 2.Sc4#
- 1...Rh7
- 2.Sc4#
- 1...Rh8
- 2.Sc4#
- 1...Qc2
- Tries
- 1.Re6?
- threat
- 2.Bb6#
- 2.Rxa6#
- 1...Qxd5+
- 2.Qxd5#
- 1...Qe2
- 2.Bb6#
- 1...Qf1
- 2.Bb6#
- 1...Qg1
- 2.Rxa6#
- 1...Qd3
- 2.Bb6#
- 1...Qd4
- 2.Rxa6#
- 1...Rh6
- 2.Sc4#
- 2.Bb6#
- 1...fxe6!
- threat
- 1.Qd3?
- threat
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bxf7#
- 2.Ba8#
- 2.Qxa6#
- 1...Qg4+
- 2.Be6#
- 1...Qxb3
- 2.Bxb3#
- 2.Bc4#
- 2.Qxa6#
- 1...Qe2
- 2.Be4#
- 1...Qc2
- 2.Bc4#
- 2.Qxa6#
- 1...Qf3
- 2.Bxf3#
- 2.Be4#
- 2.Qxa6#
- 1...Qh5
- 2.Qxa6#
- 1...Qc1
- 2.Bc4#
- 2.Qxa6#
- 1...Qe1
- 2.Be4#
- 2.Qxa6#
- 1...Qf1
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bxf7#
- 2.Ba8#
- 1...Qg1
- 2.Qxa6#
- 1...Qh1
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Qxa6#
- 1...Rc1
- 2.Bc4#
- 2.Qxa6#
- 1...Rh1
- 2.Sc4#
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bxf7#
- 2.Ba8#
- 2.Qxa6#
- 1...Rc4
- 2.Sxc4#
- 2.Bxc4#
- 1...Rd4
- 2.Qxa6#
- 1...Re4
- 2.Bxe4#
- 2.Qxa6#
- 1...Rh5
- 2.Sc4#
- 2.Qxa6#
- 1...Rh6
- 2.Sc4#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bxf7#
- 2.Ba8#
- 1...e6
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Bxe6#
- 2.Bb7#
- 2.Ba8#
- 2.Qxa6#
- 1...f5
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Be6#
- 2.Bb7#
- 2.Bf7#
- 2.Ba8#
- 2.Bg8#
- 2.Qxa6#
- 1...f6
- 2.Qxa6#
- 1...Qxd3!
- threat
- 1.Qe6?
- threat
- 2.Bb6#
- 2.Qxa6#
- 2.Qb6#
- 1...Qxd5+
- 2.Rxd5#
- 2.Qxd5#
- 1...Qe2
- 2.Bb6#
- 2.Qb6#
- 1...Qg4
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Bb6#
- 1...Qf1
- 2.Bc4#
- 2.Bb6#
- 2.Qb6#
- 1...Qg1
- 2.Qxa6#
- 1...Qd3
- 2.Bb6#
- 2.Qb6#
- 1...Qd4
- 2.Qxa6#
- 1...Rh6
- 2.Sc4#
- 2.Bb6#
- 1...fxe6!
- threat
- 1.Re6?
- Keys
- 1.Qf1!
- threat
- 2.Qxa6#
- 1...Qg4+
- 2.Be6#
- 1...Qxd5+
- 2.Rxd5#
- 1...Qxf1
- 2.Bc4#
- 1...Qe2
- 2.Qxa1#
- 1...Qd3
- 2.Qxa1#
- 1...Rc4
- 2.Sxc4#
- 1...Rh6
- 2.Sc4#
- threat
- 1.Qf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- Q(b);N_PINB(C)::R(D)+B(C)
- Q(b);CHECK,OGATE,P_SPINQ(b),XB(C)::R(D),XQ(b)
- R(d);N_GUARD::S(A)
- R(d);N_GUARD::S(A),XR(d)
- Tries
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XB(C)::QAR(E),XQ(b)
- Q(b);N_PINB(C)::B(F)
- Q(b);N_PINB(C)::R1(D),XP(f)
- Q(b);::B(F)
- Q(b);::R1(D),XP(f)
- Refutation
- P(h);XR(D)
- Try
- Q(E);N_SPINB(C)
- Threat
- DUALS(11)
- Vars
- Q(b);CHECK::R(D)+B(C)
- Q(b);::R(D)+B(C)
- Q(b);::QAR1(E),XP(f)
- R(d);P_PINB(C)::QAR1(E),XP(f)
- P(h);::QAR1(E),XP(f)
- Refutation
- Q(b);P_PINB(C),XQ(E)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- Q(b);N_PINB(C)::QAR1(E),XP(f)
- Q(b);::QAR1(E),XP(f)
- Refutation
- P(h);XQ(E)
- Try
- Actual
- Q(E);
- Threat
- QAR1(E),XP(f)
- Vars
- Q(b);CHECK,N_PINB(C)::R(D)+B(C)
- Q(b);CHECK,OGATE,P_SPINQ(b),XB(C)::R(D),XQ(b)
- Q(b);N_PINB(C),XQ(E)::R(D)+B(C)
- Q(b);N_PINB(C),OGATE::QAR(E),XR(a)
- Q(b);OGATE::QAR(E),XR(a)
- R(d);N_GUARD::S(A),XR(d)
- R(d);N_GUARD::S(A)
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