MESON Chess Problem Database

Problem Display
PID: 77512 (K1k1B3/2r1P2P/8/8/8/2R5/8/8 w - - 0 1)

Cyrulik, Stepan Pavlovich

Kirillov, Stanislav Vasilovich

Problemist Pribuzhya, 1992

K1k1B3/2r1P2P/8/8/8/2R5/8/8

#2

5 + 2

145 StrateGems 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Rxc4#
    • 1...Rc5
      • 2.Rxc5#
    • 1...Rc6
      • 2.Rxc6#
  • Tries
    • 1.Rc1?
      • 1...Rc2
        • 2.Rxc2#
      • 1...Rc3
        • 2.Rxc3#
      • 1...Rc4
        • 2.Rxc4#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Rc6
        • 2.Rxc6#
      • 1...Rxc1!
    • 1.Rc2?
      • 1...Rc3
        • 2.Rxc3#
      • 1...Rc4
        • 2.Rxc4#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Rc6
        • 2.Rxc6#
      • 1...Rxc2!
    • 1.Rc4?
      • 1...Rc5
        • 2.Rxc5#
      • 1...Rc6
        • 2.Rxc6#
      • 1...Rxc4!
    • 1.Rc5?
      • 1...Rc6
        • 2.Rxc6#
      • 1...Rxc5!
    • 1.h8S?
      • 1...Rc4
        • 2.Rxc4#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Rc6
        • 2.Rxc6#
      • 1...Rxc3!
    • 1.h8B?
      • 1...Rc4
        • 2.Rxc4#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Rc6
        • 2.Rxc6#
      • 1...Rxc3!
    • 1.h8R?
      • threat
        • 2.Ba4#
        • 2.Bb5#
        • 2.Bc6#
      • 1...Rc4
        • 2.Rxc4#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Rc6
        • 2.Rxc6#
      • 1...Rxc3!
  • Keys
    • 1.h8Q!
      • threat
        • 2.Ba4#
        • 2.Bb5#
        • 2.Bc6#
        • 2.Qh3#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rc4
        • 2.Rxc4#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Rc6
        • 2.Rxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATEB::R(A),XR(a)
  • Tries
    • Try
      • R(A);
      • Vars
        • R(a);OGATEB::R(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XR(A)
    • Try
      • R(A);
      • Vars
        • R(a);OGATEB::R(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XR(A)
    • Try
      • R(A);
      • Vars
        • R(a);OGATEB::R(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XR(A)
    • Try
      • R(A);
      • Vars
        • R(a);OGATEB::R(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XR(A)
    • Try
      • P(C);
      • Vars
        • R(a);OGATEB::R(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XR(A)
    • Try
      • P(C);
      • Vars
        • R(a);OGATEB::R(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XR(A)
    • Try
      • P(C);
      • Threat
        • DUALS(3)
      • Vars
        • R(a);OGATEB::R(A),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XR(A)
  • Actual
    • P(C);
    • Threat
      • DUALS(4)
    • Vars
      • R(a);N_SPINR(a),OGATE,XR(A)::QAR(C),XR(a)
      • R(a);OGATEB::R(A),XR(a)
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