MESON Chess Problem Database

Problem Display
PID: 2241 (8/Qp1p4/3rp3/1k2P3/N7/1N6/3P4/4K3 w - - 0 1)

Cook, Eugene Beauharnais

Source?, 0000

8/Qp1p4/3rp3/1k2P3/N7/1N6/3P4/4K3

#2

6 + 5

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qc5#
  • Tries
    • 1.Sc3+?
      • 1...Kb4
        • 2.Qa4#
      • 1...Kc6
        • 2.Qc5#
      • 1...Kc4!
    • 1.Qc5+?
      • 1...Ka6
        • 2.Qa5#
      • 1...Kxa4!
    • 1.Qa5+?
      • 1...Kc6
        • 2.Qc5#
      • 1...Kc4!
  • Keys
    • 1.Sb2!
      • 1...Kb4
        • 2.Qa4#
      • 1...Kc6
        • 2.Qc5#
      • 1...Rxd2
        • 2.Qxb7#
      • 1...Rd3
        • 2.Qxb7#
      • 1...Rd4
        • 2.Qxb7#
      • 1...Rd5
        • 2.Qxb7#
      • 1...Ra6
        • 2.Qc5#
      • 1...Rb6
        • 2.Qa4#
      • 1...Rc6
        • 2.Qa5#
      • 1...b6
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(F)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);P-FLIGHT::QAR1(F)
      • K(a);S_FLIGHT::QAR1(F)
      • R(b);N_GUARD,XP(B)::QAR2(F),XP(d)
      • R(b);N_GUARD::QAR2(F),XP(d)
      • R(b);SBLOCK::QAR1(F)
      • R(b);SBLOCK::QAB1(F)
      • P(d);SBLOCK::QAB1(F)
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