MESON Chess Problem Database

Problem Display
PID: 79544 (1K4B1/8/2Q2N2/4k3/7P/8/1P6/8 w - - 0 1)

Dasni, Shamil Ade

Ria Taze, 1970

1K4B1/8/2Q2N2/4k3/7P/8/1P6/8

#2

6 + 1

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qc3#
  • Tries
    • 1.Sh5?
      • threat
        • 2.Qd5#
      • 1...Kf5
        • 2.Qe6#
      • 1...Kd4!
    • 1.Bh7?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4!
    • 1.Qf3?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kd6!
    • 1.Qd5+?
      • 1...Kxf6
        • 2.Qg5#
      • 1...Kf4!
    • 1.Qc5+?
      • 1...Kxf6
        • 2.Qg5#
      • 1...Kf4!
    • 1.Qd6+?
      • 1...Kf5
        • 2.Bh7#
      • 1...Kxd6!
  • Keys
    • 1.Qc1!
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf5
        • 2.Qg5#
      • 1...Kd6
        • 2.Qc7#
      • 1...Kxf6
        • 2.Qg5#

Anticipated by 2710(0000), 223479(1926), 45874(1967)

This anticipates 245479(2000)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(D)::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(D)::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);P-FLIGHT::QAR1(C)
      • K(a);S_FLIGHT,XS(D)::QAB1(C)
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