MESON Chess Problem Database
Problem Display
PID: 47490 (5B2/3p4/5pN1/1KNk4/1P1r4/7n/8/3RR3 w - - 0 1)
Lewis, Robert Tony
The Problemist, 2003
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Rxd1
- 2.Rxd1#
- 1...Rd2
- 2.Rxd2#
- 1...Rd3
- 2.Rxd3#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...f5
- 2.Re5#
- 1...d6
- 2.Se7#
- 1...Rxd1
- Tries
- 1.Sb3?
- threat
- 2.Rxd4#
- 1...Rd2
- 2.Rxd2#
- 1...Rd3
- 2.Rxd3#
- 1...Rxd1!
- threat
- 1.Sa4?
- threat
- 2.Sc3#
- 2.Sb6#
- 1...Rd2
- 2.Rxd2#
- 1...Rd3
- 2.Rxd3#
- 1...Rxd1!
- threat
- 1.Sa6?
- threat
- 2.Sc7#
- 1...Rd2
- 2.Rxd2#
- 1...Rd3
- 2.Rxd3#
- 1...Rxd1!
- threat
- 1.Sb7?
- threat
- 2.Se7#
- 1...Rd2
- 2.Rxd2#
- 1...Rd3
- 2.Rxd3#
- 1...Rxd1!
- threat
- 1.Sxd7?
- threat
- 2.Sb6#
- 2.Sxf6#
- 1...Rd2
- 2.Rxd2#
- 1...Rd3
- 2.Rxd3#
- 1...f5
- 2.Sb6#
- 2.Sf6#
- 2.Re5#
- 1...Rxd1!
- threat
- 1.Be7?
- 1...Rxd1
- 2.Rxd1#
- 1...Rd2
- 2.Rxd2#
- 1...Rd3
- 2.Rxd3#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...f5
- 2.Re5#
- 1...d6!
- 1...Rxd1
- 1.Rd2?
- 1...Rd3
- 2.Rxd3#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...f5
- 2.Re5#
- 1...d6
- 2.Se7#
- 1...Rxd2!
- 1...Rd3
- 1.Rd3?
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...f5
- 2.Re5#
- 1...d6
- 2.Se7#
- 1...Rxd3!
- 1...Sg1
- 1.Re2?
- 1...Rd2
- 2.Rdxd2#
- 2.Rexd2#
- 1...Rd3
- 2.Rxd3#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...f5
- 2.Re5#
- 1...d6
- 2.Se7#
- 1...Rxd1!
- 1...Rd2
- 1.Re3?
- 1...Rd2
- 2.Rxd2#
- 1...Rd3
- 2.Rdxd3#
- 2.Rexd3#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...f5
- 2.Re5#
- 1...d6
- 2.Se7#
- 1...Rxd1!
- 1...Rd2
- 1.Re4?
- threat
- 2.Rdxd4#
- 2.Rexd4#
- 1...Rd2
- 2.Rxd2#
- 1...Rd3
- 2.Rxd3#
- 1...Rxd1!
- threat
- 1.Re6?
- threat
- 2.Se7#
- 2.Rd6#
- 1...Rxd1
- 2.Rd6#
- 1...Rd2
- 2.Rxd2#
- 2.Rd6#
- 1...Rd3
- 2.Rxd3#
- 2.Rd6#
- 1...d6
- 2.Se7#
- 2.Rxd6#
- 1...dxe6!
- threat
- 1.Re7?
- threat
- 2.Rxd7#
- 1...Kd6
- 2.Rxd7#
- 1...d6!
- threat
- 1.Sb3?
- Keys
- 1.Sd3!
- 1...Rxb4+
- 2.Sxb4#
- 1...Rxd3
- 2.Rxd3#
- 1...Rc4
- 2.Sdf4#
- 1...Re4
- 2.Sdf4#
- 1...Rf4
- 2.Sdxf4#
- 1...Rg4
- 2.Sdf4#
- 1...Rh4
- 2.Sdf4#
- 1...Sg1
- 2.Sdf4#
- 1...Sf2
- 2.Sdf4#
- 1...Sf4
- 2.Sdxf4#
- 1...Sg5
- 2.Sdf4#
- 1...f5
- 2.Re5#
- 1...d6
- 2.Se7#
- 1...Rxb4+
- 1.Sd3!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- R(b);N_SPINR(b),OGATE,XR(A)::R(B),XR(b)
- R(b);OGATEB::R(A),XR(b)
- S(a);N_GUARD::S(F)
- S(a);N_GUARD::S(F),XS(a)
- P(d);N_GUARD::R1(B)
- P(e);SBLOCK::S(F)
- Tries
- Try
- S(E);
- Threat
- R1(A),XR(b)
- Vars
- R(b);OGATEB::R(A),XR(b)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(b);OGATEB::R(A),XR(b)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- S(E);
- Threat
- S(E)
- Vars
- R(b);OGATEB::R(A),XR(b)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- S(E);
- Threat
- S(F)
- Vars
- R(b);OGATEB::R(A),XR(b)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- S(E);XP(e)
- Threat
- DUALS(2)
- Vars
- R(b);OGATEB::R(A),XR(b)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- B(G);
- Vars
- R(b);N_SPINR(b),OGATE,XR(A)::R(B),XR(b)
- R(b);OGATEB::R(A),XR(b)
- S(a);N_GUARD::S(F)
- S(a);N_GUARD::S(F),XS(a)
- P(d);N_GUARD::R1(B)
- Refutation
- P(e);
- Try
- R(A);
- Vars
- R(b);OGATEB::R(A),XR(b)
- S(a);N_GUARD::S(F)
- S(a);N_GUARD::S(F),XS(a)
- P(d);N_GUARD::R1(B)
- P(e);SBLOCK::S(F)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- R(A);
- Vars
- S(a);N_GUARD::S(F)
- S(a);N_GUARD::S(F),XS(a)
- P(d);N_GUARD::R1(B)
- P(e);SBLOCK::S(F)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- R(B);
- Vars
- R(b);OGATEB::R(A),XR(b)
- S(a);N_GUARD::S(F)
- S(a);N_GUARD::S(F),XS(a)
- P(d);N_GUARD::R1(B)
- P(e);SBLOCK::S(F)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- R(B);
- Vars
- R(b);OGATEB::R(A),XR(b)
- S(a);N_GUARD::S(F)
- S(a);N_GUARD::S(F),XS(a)
- P(d);N_GUARD::R1(B)
- P(e);SBLOCK::S(F)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- R(b);OGATEB::R(A),XR(b)
- Refutation
- R(b);N_SPINR(b),XR(A)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- R(b);N_SPINR(b),XR(A)::R1(B)
- Refutation
- P(e);XR(B)
- Try
- R(B);
- Threat
- R(B),XP(e)
- Vars
- K(c);P-FLIGHT::B(G)+R(B),DCHECK,XP(e)
- Refutation
- P(e);
- Try
- Actual
- S(E);N_PINR(b)
- Vars
- R(b);CHECK,XP(C)::R(A)+S(E),DCHECK,XR(b)
- R(b);OGATE,P_SPINR(b),XS(E)::R(A),XR(b)
- R(b);::R(A)+S(E),DCHECK
- R(b);::R(A)+S(E),DCHECK,XR(b)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- P(d);N_GUARD::R1(B)
- P(e);SBLOCK::S(F)
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