MESON Chess Problem Database

Problem Display
PID: 15960 (r7/6N1/p1BP1PK1/Q1P1k1PR/4n2B/2P1R1P1/p2n1p2/1bN5 w - - 0 1)

Morse, Christopher Jeremy

The Problemist, 1989

r7/6N1/p1BP1PK1/Q1P1k1PR/4n2B/2P1R1P1/p2n1p2/1bN5

#2

14 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Sxd3#
  • Tries
    • 1.Qc7?
      • threat
        • 2.Qe7#
        • 2.d7#
      • 1...Rc8
        • 2.Qe7#
      • 1...Re8
        • 2.d7#
      • 1...Sc4
        • 2.Qe7#
      • 1...Ra7!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Rd5#
      • 1...Bxd3
        • 2.Sxd3#
      • 1...Sxc3
        • 2.Qxc3#
      • 1...Sxg3
        • 2.Bxg3#
      • 1...Sxc5
        • 2.Qxc5#
      • 1...Sxg5
        • 2.Rxg5#
      • 1...Sxd6
        • 2.cxd6#
      • 1...Sxf6
        • 2.gxf6#

There are these versions: 145241

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::S(A),XB(a)
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);::QAR2(F)
        • R(h);::QAB(F)+P(K)
        • S(c);::QAR2(F)
      • Refutation
        • R(h);
  • Actual
    • R(C);N_PINS(e)
    • Threat
      • R1(C)
    • Vars
      • B(a);XR(C)::S(A),XB(a)
      • S(e);OGATE,P_PINR(C),XP(B)::QAB(F),XS(e)
      • S(e);OGATE,P_PINR(C),XP(D)::B(E),XS(e)
      • S(e);OGATE,P_PINR(C),P_SPINS(e),XP(G)::QAR2(F),XS(e)
      • S(e);OGATE,P_PINR(C),P_SPINS(e),XP(H)::R(I),XS(e)
      • S(e);OGATE,P_PINR(C),XP(K)::QAR(F)+P(G),XS(e)
      • S(e);OGATE,P_PINR(C),XP(L)::R(I)+P(H),XS(e)
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