MESON Chess Problem Database

Problem Display
PID: 214792 (8/1R6/3P4/3k1p2/1B3P2/4P3/8/Q1K5 w - - 0 1)

Fleischmann, Simon

Scientific American Supplement, 1878

8/1R6/3P4/3k1p2/1B3P2/4P3/8/Q1K5

#2

7 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qe5#
  • Tries
    • 1.Kc2?
      • 1...Kc4
        • 2.Qd4#
        • 2.Qa2#
      • 1...Kc6
        • 2.Qh1#
      • 1...Ke6
        • 2.Qe5#
      • 1...Ke4!
    • 1.Rc7?
      • threat
        • 2.Qe5#
      • 1...Ke6
        • 2.Qe5#
      • 1...Ke4!
    • 1.Qc3?
      • 1...Ke6
        • 2.Qe5#
      • 1...Ke4!
    • 1.Qd4+?
      • 1...Ke6
        • 2.Re7#
        • 2.Qe5#
      • 1...Kc6!
    • 1.Qe5+?
      • 1...Kc6
        • 2.Qb5#
      • 1...Kc4!
    • 1.Qa2+?
      • 1...Kc6
        • 2.Qg2#
      • 1...Ke4!
  • Keys
    • 1.Kd2!
      • 1...Kc4
        • 2.Qa2#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kc6
        • 2.Qh1#
      • 1...Ke6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(A)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(G);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAB(A)
      • K(a);S_FLIGHT::QAR1(A)
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