MESON Chess Problem Database

Problem Display
PID: 234975 (8/8/Q7/pB6/1kp1K3/8/8/2B5 w - - 0 1)

Akimov, Nikolai Nikolaevich

64 Shakhmatnoe obozrenie, 2011

8/8/Q7/pB6/1kp1K3/8/8/2B5

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Ba3#
  • Tries
    • 1.Qc6?
      • threat
        • 2.Qxc4#
      • 1...Kb3
        • 2.Qxc4#
      • 1...Kc3
        • 2.Qxc4#
      • 1...c3
        • 2.Qc4#
      • 1...a4!
  • Keys
    • 1.Ba4!
      • 1...Kc3
        • 2.Qxa5#
      • 1...Kxa4
        • 2.Qxc4#
      • 1...Kc5
        • 2.Ba3#
      • 1...c3
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(A)
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR1(D),XP(b)
      • Vars
        • K(a);P-FLIGHT::QAB1(D),XP(b)
        • K(a);P_SPINP(b),S_FLIGHT::QAR1(D),XP(b)
        • P(b);::QAR1(D)
      • Refutation
        • P(c);
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::QAB(D),XP(c)
      • K(a);P-FLIGHT,P_SPINP(c),XB(C)::QAR2(D),XP(b)
      • K(a);S_FLIGHT::B(A)
      • P(b);SBLOCK::QAR1(D)
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