MESON Chess Problem Database

Problem Display
PID: 52669 (b4K2/r1p2p2/7p/r3RB1k/6pB/6P1/8/7R w - - 0 1)

Stubbs, Arthur Goodwin

The Observer, 1925

b4K2/r1p2p2/7p/r3RB1k/6pB/6P1/8/7R

#2

6 + 8

56 The Problemist 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Bf6#
      • 2.Be7#
      • 2.Bd8#
    • 1...Rb7
      • 2.Bf6#
      • 2.Be7#
      • 2.Bd8#
    • 1...c6
      • 2.Bf6#
      • 2.Be7#
      • 2.Bd8#
  • Tries
    • 1.Be4+?
      • 1...Rxe5
        • 2.Bf6#
        • 2.Be7#
        • 2.Bd8#
      • 1...f5!
    • 1.Be6+?
      • 1...Rxe5
        • 2.Bxf7#
      • 1...f5
        • 2.Bf7#
      • 1...Kg6!
  • Keys
    • 1.Kxf7!
      • threat
        • 2.Bg6#
      • 1...Bd5+
        • 2.Be6#
      • 1...c5+
        • 2.Bd7#
      • 1...c6+
        • 2.Be7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);CHECK
      • Refutation
        • P(g);P_SPINP(g)
    • Try
      • B(E);CHECK
      • Vars
        • R(b);XR(D)::B(E),XP(g)
        • P(g);P_SPINP(g)::B(E)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • K(F);P-FLIGHT,XP(g)
    • Threat
      • R(D)+B(E),DCHECK
    • Vars
      • B(h);CHECK,S_CUTR(b)::R(D)+B(E)
      • P(f);CHECK,S_CUTR(b)::R(D)+B(E)
      • P(f);CHECK,S_CUTB(h)::R(A)+B(C)
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