MESON Chess Problem Database
Problem Display
PID: 230853 (2R5/1pK2BN1/8/2kp4/2P1pn2/2Q5/3P4/8 w - - 0 1)
Ritchings, Mark
The Problemist, 1988
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Se2
- 2.Se6#
- 1...Sg2
- 2.Se6#
- 1...Sd3
- 2.Se6#
- 1...Sh3
- 2.Se6#
- 1...Sh5
- 2.Se6#
- 1...Se6+
- 2.Sxe6#
- 1...Sg6
- 2.Se6#
- 1...e3
- 2.d4#
- 1...dxc4
- 2.Qxc4#
- 1...d4
- 2.Qa3#
- 1...b5
- 2.cxd5#
- 1...b6
- 2.Kd7#
- 1...Se2
- Tries
- 1.Kd8+?
- 1...Kd6
- 2.Sf5#
- 2.Se8#
- 2.c5#
- 1...Kb6!
- 1...Kd6
- 1.Sf5?
- threat
- 2.Kxb7#
- 1...dxc4
- 2.Qxc4#
- 1...b5
- 2.Kb7#
- 2.cxd5#
- 1...b6
- 2.Kb7#
- 2.Kd7#
- 2.Kb8#
- 2.Kd8#
- 1...Se6+!
- threat
- 1.Se8?
- threat
- 2.Kxb7#
- 1...dxc4
- 2.Qxc4#
- 1...b5
- 2.Kb7#
- 2.cxd5#
- 1...b6
- 2.Kb7#
- 2.Kd7#
- 2.Kb8#
- 2.Kd8#
- 1...Se6+!
- threat
- 1.Ra8?
- 1...Se6+
- 2.Sxe6#
- 1...dxc4
- 2.Qxc4#
- 1...d4
- 2.Qa3#
- 1...Se2
- 2.Se6#
- 1...Sg2
- 2.Se6#
- 1...Sd3
- 2.Se6#
- 1...Sh3
- 2.Se6#
- 1...Sh5
- 2.Se6#
- 1...Sg6
- 2.Se6#
- 1...e3
- 2.d4#
- 1...b5
- 2.cxd5#
- 1...b6!
- 1...Se6+
- 1.Rb8?
- 1...Se6+
- 2.Sxe6#
- 1...dxc4
- 2.Qxc4#
- 1...d4
- 2.Qa3#
- 1...Se2
- 2.Se6#
- 1...Sg2
- 2.Se6#
- 1...Sd3
- 2.Se6#
- 1...Sh3
- 2.Se6#
- 1...Sh5
- 2.Se6#
- 1...Sg6
- 2.Se6#
- 1...e3
- 2.d4#
- 1...b5
- 2.Rxb5#
- 2.cxb5#
- 2.cxd5#
- 1...b6!
- 1...Se6+
- 1.Rd8?
- 1...Se6+
- 2.Sxe6#
- 1...dxc4
- 2.Qxc4#
- 1...d4
- 2.Qa3#
- 1...Se2
- 2.Se6#
- 2.Rxd5#
- 1...Sg2
- 2.Se6#
- 2.Rxd5#
- 1...Sd3
- 2.Se6#
- 2.Rxd5#
- 1...Sh3
- 2.Se6#
- 2.Rxd5#
- 1...Sh5
- 2.Se6#
- 2.Rxd5#
- 1...Sg6
- 2.Se6#
- 2.Rxd5#
- 1...e3
- 2.d4#
- 1...b5
- 2.cxd5#
- 1...b6!
- 1...Se6+
- 1.Re8?
- 1...Se6+
- 2.Sxe6#
- 1...dxc4
- 2.Qxc4#
- 1...d4
- 2.Qa3#
- 1...Se2
- 2.Se6#
- 1...Sg2
- 2.Se6#
- 1...Sd3
- 2.Se6#
- 1...Sh3
- 2.Se6#
- 1...Sh5
- 2.Se6#
- 1...Sg6
- 2.Se6#
- 1...e3
- 2.d4#
- 1...b5
- 2.cxd5#
- 1...b6!
- 1...Se6+
- 1.Rf8?
- 1...Se6+
- 2.Sxe6#
- 1...dxc4
- 2.Qxc4#
- 1...Se2
- 2.Se6#
- 1...Sg2
- 2.Se6#
- 1...Sd3
- 2.Se6#
- 1...Sh3
- 2.Se6#
- 1...Sh5
- 2.Se6#
- 1...Sg6
- 2.Se6#
- 1...e3
- 2.d4#
- 1...d4
- 2.Qa3#
- 1...b5
- 2.cxd5#
- 1...b6!
- 1...Se6+
- 1.Rg8?
- 1...Se6+
- 2.Sxe6#
- 1...dxc4
- 2.Qxc4#
- 1...Se2
- 2.Se6#
- 1...Sg2
- 2.Se6#
- 1...Sd3
- 2.Se6#
- 1...Sh3
- 2.Se6#
- 1...Sh5
- 2.Se6#
- 1...Sg6
- 2.Se6#
- 1...e3
- 2.d4#
- 1...d4
- 2.Qa3#
- 1...b5
- 2.cxd5#
- 1...b6!
- 1...Se6+
- 1.Rh8?
- 1...Se6+
- 2.Sxe6#
- 1...dxc4
- 2.Qxc4#
- 1...Se2
- 2.Se6#
- 1...Sg2
- 2.Se6#
- 1...Sd3
- 2.Se6#
- 1...Sh3
- 2.Se6#
- 1...Sh5
- 2.Se6#
- 1...Sg6
- 2.Se6#
- 1...e3
- 2.d4#
- 1...d4
- 2.Qa3#
- 1...b5
- 2.cxd5#
- 1...b6!
- 1...Se6+
- 1.d3?
- threat
- 2.d4#
- 1...Se6+
- 2.Sxe6#
- 1...Sxd3
- 2.Se6#
- 1...dxc4
- 2.Qxc4#
- 1...Se2
- 2.Se6#
- 1...d4
- 2.Qa3#
- 1...exd3!
- threat
- 1.Kd8+?
- Keys
- 1.Bg8!
- 1...Se6+
- 2.Sxe6#
- 1...dxc4
- 2.Qxc4#
- 1...d4
- 2.Qa3#
- 1...Se2
- 2.Se6#
- 1...Sg2
- 2.Se6#
- 1...Sd3
- 2.Se6#
- 1...Sh3
- 2.Se6#
- 1...Sh5
- 2.Se6#
- 1...Sg6
- 2.Se6#
- 1...e3
- 2.d4#
- 1...b5
- 2.cxd5#
- 1...b6
- 2.Kd7#
- 1...Se6+
- 1.Bg8!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::S(F)
- S(b);CHECK,N_GUARD::S(F),XS(b)
- P(a);N_GUARD::P(A)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- P(d);SBLOCK::QAB(B)
- P(e);SBLOCK::QAR(B)+P(C),XP(d)
- P(e);SBLOCK::R(G)+K(D)
- Tries
- Try
- K(D);CHECK,S_FLIGHT
- Refutation
- K(c);S_FLIGHT
- Try
- S(F);
- Threat
- R(G)+K(D),XP(e)
- Vars
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- Refutation
- S(b);CHECK
- Try
- S(F);
- Threat
- R(G)+K(D),XP(e)
- Vars
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- Refutation
- S(b);CHECK
- Try
- R(G);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- P(d);SBLOCK::QAB(B)
- S(b);N_GUARD::S(F)
- P(a);N_GUARD::P(A)
- P(e);SBLOCK::QAR(B)+P(C),XP(d)
- Refutation
- P(e);
- Try
- R(G);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- P(d);SBLOCK::QAB(B)
- S(b);N_GUARD::S(F)
- P(a);N_GUARD::P(A)
- Refutation
- P(e);
- Try
- R(G);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- P(d);::QAB(B)
- P(a);N_GUARD::P(A)
- P(e);SBLOCK::QAR(B)+P(C),XP(d)
- Refutation
- P(e);
- Try
- R(G);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- P(d);SBLOCK::QAB(B)
- S(b);N_GUARD::S(F)
- P(a);N_GUARD::P(A)
- P(e);SBLOCK::QAR(B)+P(C),XP(d)
- Refutation
- P(e);
- Try
- R(G);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- S(b);N_GUARD::S(F)
- P(a);N_GUARD::P(A)
- P(d);SBLOCK::QAB(B)
- P(e);SBLOCK::QAR(B)+P(C),XP(d)
- Refutation
- P(e);
- Try
- R(G);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- S(b);N_GUARD::S(F)
- P(a);N_GUARD::P(A)
- P(d);SBLOCK::QAB(B)
- P(e);SBLOCK::QAR(B)+P(C),XP(d)
- Refutation
- P(e);
- Try
- R(G);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- S(b);N_GUARD::S(F)
- P(a);N_GUARD::P(A)
- P(d);SBLOCK::QAB(B)
- P(e);SBLOCK::QAR(B)+P(C),XP(d)
- Refutation
- P(e);
- Try
- P(A);
- Threat
- P(A)
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- S(b);N_GUARD,XP(A)::S(F)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- S(b);N_GUARD::S(F)
- P(d);SBLOCK::QAB(B)
- Refutation
- P(a);XP(A)
- Try
- Actual
- B(E);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(B),XP(d)
- P(d);SBLOCK::QAB(B)
- S(b);N_GUARD::S(F)
- P(a);N_GUARD::P(A)
- P(e);SBLOCK::QAR(B)+P(C),XP(d)
- P(e);SBLOCK::R(G)+K(D)
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