MESON Chess Problem Database

Problem Display
PID: 8178 (n3N2b/r2PkP1r/1P1RPR1P/5P1b/q1P5/4Q3/5B1K/8 w - - 0 1)

Morse, Christopher Jeremy

Comm., The Problemist, 1995

n3N2b/r2PkP1r/1P1RPR1P/5P1b/q1P5/4Q3/5B1K/8

#2

13 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kd8
      • 2.e7#
    • 1...Kf8
      • 2.e7#
  • Tries
    • 1.Sc7?
      • threat
        • 2.d8Q#
        • 2.f8Q#
      • 1...Kxd6
        • 2.Qc5#
      • 1...Kd8
        • 2.e7#
      • 1...Kf8
        • 2.e7#
      • 1...Qxd7
        • 2.f8Q#
      • 1...Rxf7
        • 2.d8Q#
      • 1...Bxf7
        • 2.d8Q#
      • 1...Bxf6
        • 2.d8Q#
      • 1...Bg7
        • 2.d8Q#
      • 1...Kxf6!
  • Keys
    • 1.Sg7!
      • threat
        • 2.d8Q#
        • 2.f8Q#
      • 1...Kxd6
        • 2.Qc5#
      • 1...Kxf6
        • 2.Bh4#
      • 1...Kd8
        • 2.e7#
      • 1...Kf8
        • 2.e7#
      • 1...Qxd7
        • 2.f8Q#
      • 1...Rxd7
        • 2.f8Q#
      • 1...Bxf7
        • 2.d8Q#
      • 1...Bxg7
        • 2.d8Q#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(d);OGATE,S_FLIGHT::P(H)
  • Tries
    • Try
      • S(M);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);OGATEB,S_FLIGHT,XR(G)::QAB1(C)
        • K(d);OGATE,S_FLIGHT::P(H)
        • Q(a);XP(K)::P=Q
        • R(e);XP(L)::P=Q
        • B(b);P_PINP(J),XP(L)::P=Q
        • B(g);SBLOCK,XR(I)::P=Q
        • B(g);::P=Q
      • Refutation
        • K(d);S_FLIGHT,XR(I)
  • Actual
    • S(M);
    • Threat
      • DUALS(2)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(G)::QAB1(C)
      • K(d);OGATEB,S_FLIGHT,XR(I)::B(A)
      • K(d);OGATE,S_FLIGHT::P(H)
      • Q(a);XP(K)::P=Q
      • R(c);XP(K)::P=Q
      • B(b);P_PINP(J),XP(L)::P=Q
      • B(g);XS(M)::P=Q
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