MESON Chess Problem Database
Problem Display
PID: 39114 (Q1R2BN1/1n4pB/2b1p3/3kp3/R4p2/8/K1Nn4/8 w - - 0 1)
Lewis, Robert Tony
Lewis, Sally
The Problemist, 2001
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Bxa4
- 2.Rc5#
- 1...Bb5
- 2.Rc5#
- 1...Bd7
- 2.Rc5#
- 1...Be8
- 2.Rc5#
- 1...Sb1
- 2.Be4#
- 1...Sf1
- 2.Be4#
- 1...Sb3
- 2.Be4#
- 1...Sf3
- 2.Be4#
- 1...Se4
- 2.Bxe4#
- 1...Sa5
- 2.Rd8#
- 1...Sc5
- 2.Qxc6#
- 1...Sd6
- 2.Qxc6#
- 1...Sd8
- 2.Rxd8#
- 1...f3
- 2.Se3#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Bxa4
- Tries
- 1.Ba3?
- threat
- 2.Se7#
- 1...Sc5
- 2.Qxc6#
- 1...e4!
- threat
- 1.Re4?
- threat
- 2.Sb4#
- 1...Sd6
- 2.Qxc6#
- 1...g6
- 2.Sf6#
- 1...Sxe4!
- threat
- 1.Rxc6?
- threat
- 2.Se7#
- 2.Rc5#
- 1...e4
- 2.Rc5#
- 1...Sb3
- 2.Se7#
- 2.Be4#
- 1...Se4
- 2.Se7#
- 2.Bxe4#
- 1...Sc5
- 2.Se7#
- 2.Rxc5#
- 2.Rd6#
- 1...Sd6
- 2.Se7#
- 1...Kxc6!
- threat
- 1.Qxb7?
- threat
- 2.Rd8#
- 2.Qxc6#
- 1...Bxb7
- 2.Ra5#
- 2.Rc5#
- 1...Sc4
- 2.Qxc6#
- 1...Se4
- 2.Bxe4#
- 2.Qxc6#
- 2.Qb3#
- 1...e4!
- threat
- 1.Qa6?
- threat
- 2.Qd3#
- 2.Qxc6#
- 1...Bxa4
- 2.Se7#
- 2.Qd3#
- 1...Sd6
- 2.Qxc6#
- 1...Sc4
- 2.Qxc4#
- 2.Qxc6#
- 1...Bb5
- 2.Se7#
- 1...Bd7
- 2.Se7#
- 2.Qd3#
- 1...Be8
- 2.Se7#
- 2.Qd3#
- 1...Sb3
- 2.Be4#
- 2.Qc4#
- 2.Qxc6#
- 1...Sf3
- 2.Be4#
- 2.Qc4#
- 2.Qxc6#
- 1...Sa5
- 2.Qd3#
- 1...Sc5
- 2.Qxc6#
- 1...Sd8
- 2.Qd3#
- 1...e4!
- threat
- 1.Qb8?
- 1...Bxa4
- 2.Se7#
- 1...Sd6
- 2.Qxd6#
- 1...Bb5
- 2.Se7#
- 1...Bd7
- 2.Se7#
- 1...Be8
- 2.Se7#
- 1...Sb1
- 2.Be4#
- 1...Sf1
- 2.Be4#
- 1...Sb3
- 2.Be4#
- 1...Sf3
- 2.Be4#
- 1...Se4
- 2.Bxe4#
- 1...Sa5
- 2.Qd6#
- 1...Sc5
- 2.Se7#
- 2.Qd6#
- 1...Sd8
- 2.Qd6#
- 1...f3
- 2.Se3#
- 1...e4
- 2.Rd4#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Sc4!
- 1...Bxa4
- 1.Ba3?
- Keys
- 1.Qa7!
- 1...Bxa4
- 2.Sb4#
- 1...e4
- 2.Qd4#
- 1...Sc4
- 2.Sb4#
- 1...Bb5
- 2.Sb4#
- 1...Bd7
- 2.Sb4#
- 1...Be8
- 2.Sb4#
- 1...Sb1
- 2.Be4#
- 1...Sf1
- 2.Be4#
- 1...Sb3
- 2.Be4#
- 1...Sf3
- 2.Be4#
- 1...Se4
- 2.Bxe4#
- 1...Sa5
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sd6
- 2.Se7#
- 1...Sd8
- 2.Qc5#
- 1...f3
- 2.Se3#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Bxa4
- 1.Qa7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(e);OGATE,P_SPINS(g),XR(C)::R1(F)
- B(e);OGATE,P_SPINS(g)::R1(F)
- S(a);N_GUARD::B(D)
- S(a);N_GUARD::B(D),XS(a)
- S(g);N_GUARD,P_SPINB(e)::R(F)
- S(g);OGATE,P_SPINB(e)::QAB1(E),XB(e)
- S(g);N_GUARD,P_SPINB(e)::R(F),XS(g)
- P(b);N_GUARD::S(B)
- P(h);N_GUARD::S(H)
- Tries
- Try
- B(G);
- Threat
- S(H)
- Vars
- S(g);OGATE,P_SPINB(e)::QAB1(E),XB(e)
- Refutation
- P(d);
- Try
- R(C);
- Threat
- S(B)
- Vars
- S(g);OGATE,P_SPINB(e)::QAB1(E),XB(e)
- P(h);N_GUARD::S(H)
- Refutation
- S(a);XR(C)
- Try
- R(F);XB(e)
- Threat
- DUALS(2)
- Vars
- P(d);::R1(F)
- S(g);::S(H)
- Refutation
- K(c);P_SPINS(g),S_FLIGHT,XR(F)
- Try
- Q(E);P_PINB(e),XS(g)
- Threat
- DUALS(2)
- Vars
- S(a);::QAB1(E),XB(e)
- Refutation
- P(d);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- S(g);::QAB1(E),XB(e)
- B(e);::S(H)
- S(g);::QAR2(E)
- Refutation
- P(d);
- Try
- Q(E);
- Vars
- B(e);XR(C)::S(H)
- S(g);N_GUARD::QAR1(E),XS(g)
- B(e);::S(H)
- S(a);N_GUARD::B(D)
- S(a);N_GUARD::B(D),XS(a)
- S(g);N_GUARD::QAR1(E)
- P(b);N_GUARD::S(B)
- P(d);N_GUARD::R1(C)
- P(h);N_GUARD::S(H)
- Refutation
- S(a);
- Try
- Actual
- Q(E);
- Vars
- B(e);XR(C)::S(B)
- P(d);N_GUARD::QAR1(E)
- S(a);SBLOCK::S(B)
- B(e);::S(B)
- S(a);N_GUARD::B(D)
- S(a);N_GUARD::B(D),XS(a)
- S(g);N_GUARD::QAR1(E)
- S(g);N_GUARD::QAR1(E),XS(g)
- S(g);SBLOCK::S(H)
- P(b);N_GUARD::S(B)
- P(h);N_GUARD::S(H)
Developed and maintained by Brian Stephenson.
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