MESON Chess Problem Database

Problem Display
PID: 81250 (b1BK4/3p4/2k5/P3Q3/8/8/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

200 Shakhmatni Zadachi, 1983

b1BK4/3p4/2k5/P3Q3/8/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bb7
      • 2.Bxd7#
  • Tries
    • 1.Qd4?
      • 1...d5
        • 2.Qb6#
      • 1...Bb7
        • 2.Bxd7#
      • 1...d6
        • 2.Qc4#
      • 1...Kb5!
  • Keys
    • 1.Ba6!
      • 1...d5
        • 2.Qc7#
      • 1...Bb7
        • 2.Bb5#
      • 1...d6
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);SBLOCK::B(C),XP(b)
  • Tries
    • Try
      • Q(B);
      • Vars
        • P(b);SBLOCK::QAR1(B)
        • B(c);SBLOCK::B(C),XP(b)
        • P(b);SBLOCK::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • P(b);SBLOCK::QAR1(B)
      • B(c);SBLOCK::B(C)
      • P(b);SBLOCK::QAB1(B)
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