MESON Chess Problem Database

Problem Display
PID: 173153 (3B1N2/5p2/4B1R1/4P3/Q3Pk2/8/6K1/8 w - - 0 1)

Morse, Christopher Jeremy

Problem Observer, 2005

3B1N2/5p2/4B1R1/4P3/Q3Pk2/8/6K1/8

#2

8 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Bc7#
  • Tries
    • 1.Bxf7?
      • 1...Kxe5
        • 2.Bc7#
      • 1...Ke3!
    • 1.Rg3?
      • 1...fxe6
        • 2.Sg6#
      • 1...f5
        • 2.Sg6#
      • 1...f6
        • 2.Sg6#
      • 1...Kxe5!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Bg5#
        • 2.Rg4#
      • 1...fxe6
        • 2.Sxe6#
      • 1...fxg6
        • 2.Sxg6#
      • 1...f5
        • 2.exf5#
      • 1...f6
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(a);OGATEB,S_FLIGHT,XP(D)::B(G)
  • Tries
    • Try
      • B(E);XP(b)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(D)::B(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • P(b);N_GUARD,XB(E)::S(H)
        • P(b);N_GUARD::S(H)
      • Refutation
        • K(a);S_FLIGHT,XP(D)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • P(b);XB(E)::S(H),XP(b)
      • P(b);XR(F)::S(H),XP(b)
      • P(b);OGATE::QAR(B)+P(C),XP(b)
      • P(b);::R1(F)
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