MESON Chess Problem Database

Problem Display
PID: 183308 (2RR4/N2p3N/2P1P3/B1k5/4K3/8/8/5B2 w - - 0 1)

Jarman, CP

The Problemist, 1943

2RR4/N2p3N/2P1P3/B1k5/4K3/8/8/5B2

#2

9 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...dxc6
      • 2.Rxc6#
      • 2.Rd5#
    • 1...d5+
      • 2.Rxd5#
  • Tries
    • 1.Sg5?
      • 1...d5+
        • 2.Rxd5#
      • 1...Kd6
        • 2.Bb4#
      • 1...dxc6
        • 2.Rxc6#
        • 2.Rd5#
      • 1...dxe6
        • 2.Sxe6#
      • 1...d6!
    • 1.Rb8?
      • threat
        • 2.Bb4#
      • 1...d5+
        • 2.Rxd5#
      • 1...Kd6!
  • Keys
    • 1.Sf8!
      • 1...d5+
        • 2.Rxd5#
      • 1...Kd6
        • 2.Bb4#
      • 1...dxc6
        • 2.Rxc6#
        • 2.Rd5#
      • 1...dxe6
        • 2.Sxe6#
      • 1...d6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);CHECK,OGATE::R1(I),XP(b)
  • Tries
    • Try
      • S(G);
      • Vars
        • P(b);CHECK,OGATE::R1(I),XP(b)
        • K(a);P_SPINP(b),S_FLIGHT::B(C)
        • P(b);XP(E)::S(G),XP(b)
      • Refutation
        • P(b);
    • Try
      • R(H);
      • Threat
        • B(C)
      • Vars
        • P(b);CHECK,OGATE::R1(I),XP(b)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
  • Actual
    • S(G);
    • Vars
      • P(b);CHECK,OGATE::R1(I),XP(b)
      • K(a);P_SPINP(b),S_FLIGHT::B(C)
      • P(b);XP(E)::S(G),XP(b)
      • P(b);SBLOCK::S(G)
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