MESON Chess Problem Database

Problem Display
PID: 167109 (2N5/p1P2pN1/RbKP1kpP/p5pb/P2P2n1/4p2B/4P3/B7 w - - 0 1)

Rice, John Michael

4th Place, Belgrade QCT, 2016

2N5/p1P2pN1/RbKP1kpP/p5pb/P2P2n1/4p2B/4P3/B7

#2

12 + 10

145 StrateGems 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Se8#
    • 1...Sh2
      • 2.Se8#
    • 1...Se5+
      • 2.dxe5#
    • 1...Sxh6
      • 2.Se8#
  • Tries
    • 1.Kd5?
      • 1...Bxd4
        • 2.d7#
      • 1...Bxc7
        • 2.dxc7#
      • 1...Sxh6
        • 2.Se8#
      • 1...Sf2
        • 2.Se8#
      • 1...Sh2
        • 2.Se8#
      • 1...Se5
        • 2.Se8#
        • 2.dxe5#
      • 1...Bc5!
    • 1.Sxb6?
      • threat
        • 2.Sd5#
        • 2.Sd7#
      • 1...Se5+
        • 2.dxe5#
      • 1...Sxh6
        • 2.Se8#
        • 2.d5#
      • 1...axb6!
    • 1.Se7?
      • threat
        • 2.Sd5#
        • 2.Sg8#
      • 1...Se5+
        • 2.dxe5#
      • 1...Sxh6
        • 2.Se8#
      • 1...Bxd4!
    • 1.Bxg4?
      • threat
        • 2.Se8#
      • 1...Bxd4
        • 2.Bxd4#
      • 1...Bxg4!
  • Keys
    • 1.d7!
      • threat
        • 2.d8Q#
        • 2.d8B#
      • 1...Se5+
        • 2.dxe5#
      • 1...Bxd4
        • 2.Kd5#
      • 1...Bxc7
        • 2.Kxc7#
      • 1...Sxh6
        • 2.Se8#
      • 1...Bc5
        • 2.Kxc5#
      • 1...Sf2
        • 2.Se8#
        • 2.d8Q#
        • 2.d8B#
      • 1...Sh2
        • 2.Se8#
        • 2.d8Q#
        • 2.d8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(b);::S(K)
    • S(b);CHECK,OGATE::P(E),XS(b)
    • S(b);XP(I)::S(K)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Vars
        • B(f);P_SPINB(f),XP(E)::R(F)+P(H)
        • B(f);OGATE,XP(J)::R(F)+P(H),XB(f)
        • S(b);XP(I)::S(K)
        • S(b);::S(K)
      • Refutation
        • B(f);
    • Try
      • S(L);XB(f)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);CHECK,OGATE::P(E),XS(b)
      • Refutation
        • P(i);XS(L)
    • Try
      • S(L);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);CHECK,OGATE::P(E),XS(b)
        • S(b);XP(I)::S(K)
      • Refutation
        • B(f);P_SPINB(f),XP(E)
    • Try
      • B(C);XS(b)
      • Threat
        • S(K)
      • Vars
        • B(f);OGATE,P_SPINB(f),XP(E)::B(A),XB(f)
      • Refutation
        • B(e);XB(C)
  • Actual
    • P(H);
    • Threat
      • P=Q
    • Vars
      • S(b);CHECK,OGATE::P(E),XS(b)
      • B(f);P_SPINB(f),XP(E)::R(F)+K(G)
      • B(f);XP(J)::R(F)+K(G),XB(f)
      • S(b);XP(I)::S(K)
      • B(f);::R(F)+K(G),XB(f)
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