MESON Chess Problem Database

Problem Display
PID: 160570 (K7/1p2N3/k1P5/b1Q5/8/8/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1996

K7/1p2N3/k1P5/b1Q5/8/8/8/8

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Qa7#
  • Tries
    • 1.Qc4+?
      • 1...Kb6
        • 2.Sd5#
      • 1...b5!
  • Keys
    • 1.Sd5!
      • 1...bxc6
        • 2.Qc4#
      • 1...Be1
        • 2.Sc7#
        • 2.Qb6#
      • 1...Bd2
        • 2.Sc7#
        • 2.Qb6#
      • 1...Bc3
        • 2.Sc7#
        • 2.Qb6#
      • 1...Bb4
        • 2.Sxb4#
        • 2.Sc7#
        • 2.Qb6#
      • 1...Bb6
        • 2.Sb4#
        • 2.Qxb6#
      • 1...Bc7
        • 2.Sb4#
        • 2.Sxc7#
      • 1...Bd8
        • 2.Sb4#
      • 1...b5
        • 2.Qa7#
      • 1...b6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::S(C)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • S(C);
    • Vars
      • P(c);N_GUARD,XP(B)::QAB(A)
      • B(a);N_GUARD::S(C)
      • P(c);SBLOCK::QAR1(A)
      • P(c);S_CUTB(a)::S(C)
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