MESON Chess Problem Database

Problem Display
PID: 172233 (R7/8/3QK3/pk6/8/2p1N3/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1996

R7/8/3QK3/pk6/8/2p1N3/8/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qb6+?
      • 1...Ka4
        • 2.Rxa5#
      • 1...Kxb6!
  • Keys
    • 1.Sc2!
      • 1...Ka4
        • 2.Qb4#
      • 1...Kc4
        • 2.Qd5#
      • 1...a4
        • 2.Sa3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::R1(D),XP(b)
      • Refutation
        • K(c);P-FLIGHT,XQ(B)
  • Actual
    • S(A);
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT::QAR1(B)
      • K(c);S_FLIGHT::QAB1(B)
      • P(b);::S(A)
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