MESON Chess Problem Database

Problem Display
PID: 221640 (7Q/8/4P3/1kB5/4N3/8/K1N5/8 w - - 0 1)

Piliczewski, Bogusz

Die Schwalbe, 2019

7Q/8/4P3/1kB5/4N3/8/K1N5/8

#2

6 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Sa3+?
      • 1...Ka4
        • 2.Qa8#
      • 1...Ka5
        • 2.Qa8#
      • 1...Ka6
        • 2.Qa8#
      • 1...Kc6!
    • 1.Sd4+?
      • 1...Ka4
        • 2.Qa8#
      • 1...Ka5
        • 2.Qa8#
      • 1...Ka6
        • 2.Qa8#
      • 1...Kc4!
    • 1.Sc3+?
      • 1...Kc4
        • 2.Qd4#
      • 1...Ka5
        • 2.Qa8#
      • 1...Ka6
        • 2.Qa8#
      • 1...Kc6
        • 2.Qc8#
      • 1...Kxc5!
    • 1.Qb8+?
      • 1...Ka4
        • 2.Qb4#
      • 1...Kc4
        • 2.Qb3#
      • 1...Ka6
        • 2.Qb6#
      • 1...Kc6
        • 2.Sb4#
      • 1...Ka5!
  • Keys
    • 1.Qd8!
      • 1...Ka4
        • 2.Sc3#
      • 1...Kc4
        • 2.Sa3#
      • 1...Ka6
        • 2.Qb6#
      • 1...Kc6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR(F)
        • K(a);P-FLIGHT::QAR(F)
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR(F)
        • K(a);P-FLIGHT::QAR(F)
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
        • K(a);P-FLIGHT::QAR(F)
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT,XB(D)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(F)
        • K(a);OGATE,S_FLIGHT::QAB1(F)
        • K(a);S_FLIGHT::QAR1(F)
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);S_FLIGHT::S(C)
      • K(a);S_FLIGHT::S(B)
      • K(a);S_FLIGHT::QAR1(F)
      • K(a);S_FLIGHT::QAB1(F)
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