MESON Chess Problem Database
Problem Display
PID: 18380 (Nb6/1BpK4/2pPp1N1/r2k4/b3p3/2R1P3/2R5/5n2 w - - 0 1)
Lipton, Michael
3rd Prize, McWilliam Ty., 1955
#2
8 + 9
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
| 56 | The Problemist | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Bxc6#
- 1...Rc5
- 2.Rxc5#
- 1...Ra6
- 2.Rc5#
- 1...Ra7
- 2.Rc5#
- 1...Rxa8
- 2.Rc5#
- 1...Bxc2
- 2.Bxc6#
- 1...Bb3
- 2.Bxc6#
- 1...Bb5
- 2.Rc5#
- 1...Ba7
- 2.Sxc7#
- 1...Sd2
- 2.Rxd2#
- 1...Sh2
- 2.Rd2#
- 1...Sxe3
- 2.Rd2#
- 1...Sg3
- 2.Rd2#
- 1...e5
- 2.Se7#
- 1...cxd6
- 2.Sb6#
- 1...Rb5
- Tries
- 1.Ke7?
- 1...Rxa8
- 2.Rc5#
- 1...Bxc2
- 2.Bxc6#
- 1...Sxe3
- 2.Rd2#
- 1...cxd6
- 2.Sb6#
- 1...Rb5
- 2.Bxc6#
- 1...Rc5
- 2.Rxc5#
- 1...Ra6
- 2.Rc5#
- 1...Ra7
- 2.Rc5#
- 1...Bb3
- 2.Bxc6#
- 1...Bb5
- 2.Rc5#
- 1...Ba7
- 2.Sxc7#
- 1...Sd2
- 2.Rxd2#
- 1...Sh2
- 2.Rd2#
- 1...Sg3
- 2.Rd2#
- 1...e5!
- 1...Rxa8
- 1.dxc7?
- threat
- 2.Sb6#
- 1...Rxa8
- 2.Rc5#
- 1...Bxc7
- 2.Sxc7#
- 1...Sxe3
- 2.Rd2#
- 1...Rb5
- 2.Bxc6#
- 1...Ra6
- 2.Rc5#
- 1...Ba7!
- threat
- 1.Ke7?
- Keys
- 1.Rxc6!
- 1...Bxc6+
- 2.Bxc6#
- 1...Rxa8
- 2.Rc5#
- 1...Bxc2
- 2.Rxc7#
- 1...Sxe3
- 2.Rd2#
- 1...cxd6
- 2.Sb6#
- 1...Rc5
- 2.Rxc5#
- 1...Rb5
- 2.R6c5#
- 1...Ra6
- 2.Rc5#
- 1...Ra7
- 2.Rc5#
- 1...Bb3
- 2.R6c5#
- 2.Rxc7#
- 1...Bb5
- 2.Rc5#
- 1...Ba7
- 2.Sxc7#
- 1...Sd2
- 2.Rxd2#
- 1...Sh2
- 2.Rd2#
- 1...Sg3
- 2.Rd2#
- 1...e5
- 2.Se7#
- 1...Bxc6+
- 1.Rxc6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(d);S_CUTB(b)::B(F),XP(f)
- R(d);N_GUARD::R1(B),XR(d)
- R(d);N_GUARD::R1(B)
- R(d);N_GUARD,XS(H)::R1(B)
- B(b);N_GUARD,XR(A)::B(F),XP(f)
- B(b);N_GUARD::B(F),XP(f)
- B(b);S_CUTR(d)::R1(B)
- B(i);N_GUARD::S(H),XP(h)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- S(a);N_GUARD,XP(C)::R(A)
- P(g);SBLOCK::S(E)
- P(h);N_GUARD,XP(D)::S(H)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- R(d);N_GUARD,XS(H)::R1(B)
- B(b);N_GUARD,XR(A)::B(F),XP(f)
- S(a);N_GUARD,XP(C)::R(A)
- P(h);N_GUARD,XP(D)::S(H)
- R(d);S_CUTB(b)::B(F),XP(f)
- R(d);N_GUARD::R1(B),XR(d)
- R(d);N_GUARD::R1(B)
- B(b);N_GUARD::B(F),XP(f)
- B(b);S_CUTR(d)::R1(B)
- B(i);N_GUARD::S(H),XP(h)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- Refutation
- P(g);
- Try
- P(D);XP(h)
- Threat
- S(H)
- Vars
- R(d);N_GUARD,XS(H)::R1(B)
- B(i);XP(D)::S(H),XB(i)
- S(a);N_GUARD,XP(C)::R(A)
- R(d);S_CUTB(b)::B(F),XP(f)
- R(d);N_GUARD::R1(B)
- Refutation
- B(i);
- Try
- Actual
- R(B);P_SPINR(B),XP(f)
- Vars
- B(b);CHECK,OGATE,P_SPINB(b),XR(B)::B(F),XB(b)
- R(d);N_GUARD,XS(H)::R1(A)
- B(b);N_PINR(B),XR(A)::B(F)+R(B),XP(h)
- S(a);N_GUARD,XP(C)::R(A)
- P(h);N_GUARD,XP(D)::S(H)
- R(d);N_GUARD::R1(A),XR(d)
- R(d);N_PINR(B)::B(F)+R(B),DCHECK
- R(d);N_GUARD::R1(A)
- B(b);S_CUTR(d)::R1(A)
- B(i);N_GUARD::S(H),XP(h)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- P(g);SBLOCK::S(E)
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