MESON Chess Problem Database

Problem Display
PID: 84107 (2B5/8/1Pk5/1R2K3/P7/1R2p3/NP1b4/8 w - - 0 1)

Csak, Janos

US Problem Bulletin, 1990

2B5/8/1Pk5/1R2K3/P7/1R2p3/NP1b4/8

#2

8 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sb4#
      • 2.Rc3#
    • 1...Bc3+
      • 2.Rxc3#
    • 1...Bb4
      • 2.Sxb4#
  • Tries
    • 1.R3b4?
      • threat
        • 2.Rc4#
      • 1...Bxb4
        • 2.Sxb4#
      • 1...Bc3+!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Rd6#
      • 1...Bc3+
        • 2.Rxc3#
      • 1...Bb4
        • 2.Sxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(a);CHECK,N_GUARD::R(C),XB(a)
    • B(a);N_GUARD::S(A),XB(a)
  • Tries
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • B(a);XR(C)::S(A),XB(a)
      • Refutation
        • B(a);CHECK
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • B(a);CHECK,N_GUARD::R(C),XB(a)
      • B(a);N_GUARD::S(A),XB(a)
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