MESON Chess Problem Database

Problem Display
PID: 68337 (5n2/8/3r4/NRN1k3/3r4/BB3R2/8/Q3K3 w - - 0 1)

Homer, WE

Chess, 1949

5n2/8/3r4/NRN1k3/3r4/BB3R2/8/Q3K3

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sc4#
  • Tries
    • 1.Se6+?
      • 1...Ke4
        • 2.Sg5#
      • 1...Rd5!
    • 1.Qxd4+?
      • 1...Kxd4
        • 2.Bb2#
      • 1...Rxd4!
  • Keys
    • 1.Bd5!
      • threat
        • 2.Sd3#
      • 1...Kxd5
        • 2.Rf5#
      • 1...Rxd5
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK::S(F)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::S(H)
      • Refutation
        • R(c);
    • Try
      • Q(A);CHECK,XR(a)
      • Vars
        • K(b);S_FLIGHT,XQ(A)::B(C)
      • Refutation
        • R(c);XQ(A)
  • Actual
    • B(D);
    • Threat
      • S(H)
    • Vars
      • K(b);N_SPINR(a),P-FLIGHT,XB(D)::R(E)
      • R(c);SBLOCK,XB(D)::S(F)
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