MESON Chess Problem Database

Problem Display
PID: 156593 (b2r3n/5p2/4pP2/2R1PkNK/B2bpP2/4p3/6R1/5Q2 w - - 0 1)

Reeves, Alfred Christopher

The Problemist, 2004

b2r3n/5p2/4pP2/2R1PkNK/B2bpP2/4p3/6R1/5Q2

#2

9 + 9

56 The Problemist 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5
      • 2.fxe5#
  • Tries
    • 1.Sh3?
      • threat
        • 2.Rg5#
      • 1...Bxe5
        • 2.fxe5#
      • 1...Rg8!
    • 1.Sxe6?
      • threat
        • 2.Sg7#
      • 1...Kxe6
        • 2.f5#
      • 1...fxe6
        • 2.Rg5#
      • 1...Rg8
        • 2.Sxd4#
      • 1...Bxe5!
    • 1.Sxf7?
      • threat
        • 2.Sh6#
        • 2.Rg5#
      • 1...Bxe5
        • 2.fxe5#
      • 1...Rg8
        • 2.Sd6#
        • 2.Sh6#
      • 1...Sxf7!
    • 1.Bd1?
      • threat
        • 2.Bg4#
      • 1...Bxe5
        • 2.fxe5#
      • 1...e2!
    • 1.Qe2?
      • threat
        • 2.Qg4#
      • 1...Kxf4
        • 2.Qf1#
        • 2.Qg4#
      • 1...Bxe5!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sg3#
      • 1...Kxe4
        • 2.Bc2#
      • 1...Bxe5
        • 2.Rxe5#
      • 1...Bxe4
        • 2.Rg5#
      • 1...Rg8
        • 2.Sd6#

This is after

After A Slesarenko.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATE,P_SPINB(b),XP(F)::QAR(A)+P(D),XB(b)
  • Tries
    • Try
      • S(G);
      • Threat
        • R1(B)
      • Vars
        • B(b);OGATE,P_SPINB(b),XP(F)::QAR(A)+P(D),XB(b)
      • Refutation
        • R(h);
    • Try
      • S(G);XP(e)
      • Threat
        • S(G)
      • Vars
        • K(d);OGATE,S_FLIGHT,XS(G)::P(D)
        • P(f);SBLOCK,XS(G)::R1(B)
        • R(h);N_GUARD::S(G),XB(b)
      • Refutation
        • B(b);P_SPINB(b),XP(F)
    • Try
      • S(G);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);OGATE,P_SPINB(b),XP(F)::QAR(A)+P(D),XB(b)
      • Refutation
        • S(i);XS(G)
    • Try
      • B(C);
      • Threat
        • B(C)
      • Vars
        • B(b);OGATE,P_SPINB(b),XP(F)::QAR(A)+P(D),XB(b)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Refutation
        • B(b);P_SPINB(b),XP(F)
  • Actual
    • S(G);XP(c)
    • Threat
      • S(G)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(G)::B(C)
      • B(b);OGATE,P_SPINB(b),XP(F)::R1(E),XB(b)
      • B(g);SBLOCK,XS(G)::R1(B)
      • R(h);N_GUARD::S(G)
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