MESON Chess Problem Database

Problem Display
PID: 186827 (8/5B2/3p2Q1/4k3/1K5P/3P4/8/8 w - - 0 1)

Lassahn, Holger

Freie Presse, 2000

(First published on Fri Jul 7 2000)

8/5B2/3p2Q1/4k3/1K5P/3P4/8/8

#2

5 + 2

15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qe4#
  • Tries
    • 1.Qf5+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Kxf5!
    • 1.Qe6+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Kf4!
    • 1.Qg7+?
      • 1...Kf5
        • 2.Qg5#
      • 1...Kf4!
  • Keys
    • 1.Bd5!
      • 1...Kd4
        • 2.Qe4#
      • 1...Kf4
        • 2.Qg5#
      • 1...Kxd5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(D)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(E);
    • Vars
      • K(a);S_FLIGHT::QAR1(D)
      • K(a);S_FLIGHT::QAB1(D)
      • K(a);P-FLIGHT,XB(E)::QAB1(D)
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