MESON Chess Problem Database

Problem Display
PID: 234976 (8/4p3/8/2N5/1k1P2Q1/N4P2/5B2/K7 w - - 0 1)

Akimov, Nikolai Nikolaevich

64 Shakhmatnoe obozrenie, 2011

8/4p3/8/2N5/1k1P2Q1/N4P2/5B2/K7

#2

7 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Be1#
  • Tries
    • 1.Ka2?
      • threat
        • 2.Be1#
      • 1...Kc3
        • 2.Be1#
      • 1...Ka5!
    • 1.d5+?
      • 1...Kxa3
        • 2.Qa4#
      • 1...Kc3
        • 2.Be1#
        • 2.Qd4#
      • 1...Ka5!
  • Keys
    • 1.Qe6!
      • 1...Kxa3
        • 2.Qb3#
      • 1...Kc3
        • 2.Qe1#
      • 1...Ka5
        • 2.Be1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(B)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • B(B)
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(C)::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);S_FLIGHT,XS(C)::QAR1(F)
      • K(a);S_FLIGHT::QAB(F)
      • K(a);S_FLIGHT::B(B)
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