MESON Chess Problem Database

Problem Display
PID: 234967 (8/Q7/3pk3/4p1K1/4R3/8/8/8 w - - 0 1)

Akimov, Nikolai Nikolaevich

64 Shakhmatnoe obozrenie, 2007

8/Q7/3pk3/4p1K1/4R3/8/8/8

#2

3 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rc4?
      • 1...Kd5
        • 2.Qf7#
      • 1...d5
        • 2.Rc6#
      • 1...e4!
  • Keys
    • 1.Qc7!
      • 1...Kd5
        • 2.Qc4#
      • 1...d5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);N_PINP(a)
      • Vars
        • K(c);S_FLIGHT::QAB(C)
        • P(b);OGATEB,SBLOCK::R(A)
      • Refutation
        • P(a);
  • Actual
    • Q(C);
    • Vars
      • K(c);N_SPINP(a),S_FLIGHT::QAB1(C)
      • P(b);N_GUARD::R1(A),XP(a)
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