MESON Chess Problem Database

Problem Display
PID: 2578 (8/5K2/8/3Nkpb1/6pB/3Q4/2R5/2q5 w - - 0 1)

Narraway, James Ephraim

Source?, 0000

8/5K2/8/3Nkpb1/6pB/3Q4/2R5/2q5

#2

5 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Se7?
      • threat
        • 2.Sg6#
      • 1...Kf4
        • 2.Sg6#
        • 2.Bg3#
      • 1...Bxe7!
    • 1.Qd4+?
      • 1...Kd6
        • 2.Se3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sc7#
        • 2.Se7#
      • 1...Kxd4!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sg6#
      • 1...Kxf4
        • 2.Bg3#
      • 1...Qxf4
        • 2.Rc5#
      • 1...Bxf4
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Refutation
        • B(e);XS(D)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(c);S_FLIGHT,XQ(B)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::B(C)
      • Q(a);N_GUARD,SBLOCK,XS(D)::R(A)
      • B(e);OGATE,SBLOCK,XS(D)::B(C)
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