MESON Chess Problem Database

Problem Display
PID: 104322 (b1R5/p7/k1p5/8/K7/4Q3/8/8 w - - 0 1)

Djurasevic, Branislav

Belgrade QCT, 1998

b1R5/p7/k1p5/8/K7/4Q3/8/8

#2

3 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rxa8?
      • threat
        • 2.Rxa7#
        • 2.Qxa7#
      • 1...Kb7
        • 2.Qxa7#
      • 1...c5!
    • 1.Qb3?
      • 1...c5
        • 2.Qb5#
      • 1...Bb7!
  • Keys
    • 1.Qc5!
      • 1...Kb7
        • 2.Qxc6#
      • 1...Bb7
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);P_PINP(c),XB(d)
      • Threat
        • DUALS(2)
      • Vars
        • K(a);N_SPINP(c),S_FLIGHT::QAR1(A),XP(c)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Vars
        • P(b);N_GUARD::QAB1(A)
      • Refutation
        • B(d);
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::QAB1(A),XP(b)
      • B(d);SBLOCK::QAR1(A)
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