MESON Chess Problem Database

Problem Display
PID: 154256 (8/Q3K3/8/8/4kP2/1P4P1/1P6/3B4 w - - 0 1)

Smutny, Jan

Tidskrift for Schack, 1909

8/Q3K3/8/8/4kP2/1P4P1/1P6/3B4

#2

7 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Bf3#
  • Tries
    • 1.Be2?
      • 1...Kd5
        • 2.Bf3#
      • 1...Kf5!
    • 1.Bg4?
      • 1...Kd5
        • 2.Bf3#
      • 1...Kd3!
    • 1.Qe3+?
      • 1...Kd5
        • 2.Bf3#
      • 1...Kf5
        • 2.Qd3#
        • 2.Qe6#
      • 1...Kxe3!
    • 1.Qd4+?
      • 1...Kf5
        • 2.Qd3#
      • 1...Kxd4!
    • 1.Qb6?
      • 1...Kd5
        • 2.Bf3#
      • 1...Kf5
        • 2.Qe6#
      • 1...Kd3!
  • Keys
    • 1.Qf2!
      • 1...Kd3
        • 2.Bc2#
      • 1...Kd5
        • 2.Bf3#
      • 1...Kf5
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(A)
  • Tries
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(F)
      • Refutation
        • K(a);P-FLIGHT,XQ(F)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::B(A)
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);S_FLIGHT::B(A)
      • K(a);S_FLIGHT::QAB(F)
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