MESON Chess Problem Database

Problem Display
PID: 275366 (3b1R1N/R3p2k/2p4P/2r2PK1/2b1B3/8/1B6/8 w - - 0 1)

Lyness, Robert Cranston

British Chess Magazine, 1935

3b1R1N/R3p2k/2p4P/2r2PK1/2b1B3/8/1B6/8

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5+
      • 2.Bxf5#
  • Tries
    • 1.Rf7+?
      • 1...Kg8
        • 2.h7#
      • 1...Bxf7!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Rh8#
      • 1...Rxf5+
        • 2.Bxf5#
      • 1...e5+
        • 2.f6#
      • 1...e6+
        • 2.Sxd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(b);CHECK,OGATE,P_SPINR(b),XP(C)::B(B),XR(b)
  • Tries
    • Try
      • R(G);CHECK,N_PINP(d)
      • Vars
        • K(e);OGATE,S_FLIGHT::P(E)
      • Refutation
        • B(a);XR(G)
  • Actual
    • S(H);N_PINP(d)
    • Threat
      • R1(G)
    • Vars
      • R(b);CHECK,OGATE,P_SPINR(b),XP(C)::B(B),XR(b)
      • P(d);CHECK,N_PINP(C)::B(B)+P(C)
      • P(d);CHECK::R(F)+S(H),XB(f)
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