MESON Chess Problem Database

Problem Display
PID: 77657 (8/8/1Q3B2/3k4/8/6K1/8/2N5 w - - 0 1)

Wassong, Pascal

diagrammes, 1986

8/8/1Q3B2/3k4/8/6K1/8/2N5

#2

4 + 1

5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qe6#
  • Tries
    • 1.Kg4?
      • 1...Ke4
        • 2.Qd4#
        • 2.Qe6#
      • 1...Kc4!
    • 1.Ba1?
      • 1...Ke4
        • 2.Qe6#
      • 1...Kc4!
    • 1.Bb2?
      • 1...Ke4
        • 2.Qe6#
      • 1...Kc4!
    • 1.Bd4?
      • 1...Kc4
        • 2.Qc5#
      • 1...Ke4!
    • 1.Bg7?
      • 1...Ke4
        • 2.Qe6#
      • 1...Kc4!
    • 1.Bh8?
      • 1...Ke4
        • 2.Qe6#
      • 1...Kc4!
    • 1.Qc7?
      • 1...Ke4
        • 2.Qe5#
      • 1...Ke6!
    • 1.Qa6?
      • 1...Ke4
        • 2.Qd3#
        • 2.Qe6#
      • 1...Kc5!
  • Keys
    • 1.Bc3!
      • 1...Kc4
        • 2.Qc6#
      • 1...Ke4
        • 2.Qe6#

Anticipated by 208796(1876)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR2(C)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(a);S_FLIGHT::QAR2(C)
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