MESON Chess Problem Database

Problem Display
PID: 22705 (1Q6/p7/kNr5/2b5/K7/8/8/8 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

1Q6/p7/kNr5/2b5/K7/8/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...axb6
      • 2.Qa8#
  • Tries
    • 1.Sd7?
      • threat
        • 2.Qb5#
      • 1...Rb6
        • 2.Sxc5#
      • 1...Bb6!
    • 1.Sa8?
      • threat
        • 2.Qb5#
      • 1...Rb6
        • 2.Sc7#
      • 1...Bb6!
    • 1.Sc8?
      • threat
        • 2.Qb5#
      • 1...Rb6
        • 2.Qxa7#
      • 1...Bb6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qb5#
      • 1...Rb6
        • 2.Sc7#
      • 1...Bb6
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(d);OGATEB,SBLOCK,XS(B)::QAR2(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(C)
      • Vars
        • R(c);N_GUARD::S(B),XB(a)
      • Refutation
        • B(a);
    • Try
      • S(B);
      • Threat
        • QAB1(C)
      • Vars
        • R(c);N_GUARD::S(B)
      • Refutation
        • B(a);
    • Try
      • S(B);
      • Threat
        • QAB1(C)
      • Vars
        • R(c);S_CUTB(a)::QAR1(C),XP(d)
      • Refutation
        • B(a);
  • Actual
    • S(B);
    • Threat
      • QAB1(C)
    • Vars
      • R(c);N_GUARD::S(B)
      • B(a);N_GUARD::S(B)
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