MESON Chess Problem Database

Problem Display
PID: 172377 (8/6P1/8/8/K7/2B5/pR6/k3q3 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1997

8/6P1/8/8/K7/2B5/pR6/k3q3

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qh4+
      • 2.Rb4#
    • 1...Qd1+
      • 2.Rb3#
    • 1...Qf1
      • 2.Rb3#
      • 2.Rb4#
      • 2.Rb5#
      • 2.Rb6#
      • 2.Rb7#
      • 2.Rb8#
    • 1...Qg1
      • 2.Rb3#
      • 2.Rb4#
      • 2.Rb5#
      • 2.Rb6#
      • 2.Rb7#
      • 2.Rb8#
    • 1...Qh1
      • 2.Rb3#
      • 2.Rb4#
      • 2.Rb5#
      • 2.Rb6#
      • 2.Rb7#
      • 2.Rb8#
    • 1...Qe4+
      • 2.Rb4#
    • 1...Qe6
      • 2.Rb3#
      • 2.Rb4#
      • 2.Rb5#
      • 2.Rb6#
      • 2.Rb7#
      • 2.Rb8#
    • 1...Qe7
      • 2.Rb3#
      • 2.Rb4#
      • 2.Rb5#
      • 2.Rb6#
      • 2.Rb7#
      • 2.Rb8#
    • 1...Qe8+
      • 2.Rb5#
  • Keys
    • 1.g8Q!
      • threat
        • 2.Qxa2#
      • 1...Qh4+
        • 2.Rb4#
      • 1...Qd1+
        • 2.Rb3#
      • 1...Qe4+
        • 2.Rb4#
      • 1...Qe8+
        • 2.Rb5#
      • 1...Qb1
        • 2.Rxa2#
      • 1...Qe6
        • 2.Rb3#
        • 2.Rb4#
        • 2.Rb5#
        • 2.Rb6#
        • 2.Rb7#
        • 2.Rb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(b);CHECK,N_GUARD::B(B)+R(A)
  • Actual
    • P(D);
    • Threat
      • QAR1(D),XP(c)
    • Vars
      • Q(b);CHECK,N_GUARD::B(B)+R(A)
      • Q(b);SBLOCK::B(B)+R(A),DCHECK,XP(c)
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