MESON Chess Problem Database

Problem Display
PID: 231081 (4Q3/8/8/1pN1P3/1k6/1P6/8/2K5 w - - 0 1)

von Koslowski, H

Dresdner Anzeiger, 1927

4Q3/8/8/1pN1P3/1k6/1P6/8/2K5

#2

5 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qxb5+?
      • 1...Ka3
        • 2.Qa4#
        • 2.Qa5#
      • 1...Kc3
        • 2.Qc4#
      • 1...Kxb5!
  • Keys
    • 1.Qd8!
      • 1...Ka3
        • 2.Qa5#
      • 1...Kc3
        • 2.Qd2#
      • 1...Kxc5
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,XQ(E)
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::QAR2(E)
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(E)
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