MESON Chess Problem Database

Problem Display
PID: 203217 (8/8/2p5/7B/2K5/1N6/Qpk5/8 w - - 0 1)

Ullrich, Ewald

Leipziger Tageblatt, 1924

8/8/2p5/7B/2K5/1N6/Qpk5/8

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qa5?
      • threat
        • 2.Qf5#
      • 1...Kb1
        • 2.Bg6#
      • 1...b1Q
        • 2.Qd2#
        • 2.Qc3#
      • 1...b1S
        • 2.Qa2#
      • 1...b1B
        • 2.Qd2#
        • 2.Qc3#
      • 1...b1R
        • 2.Qd2#
        • 2.Qc3#
      • 1...c5!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qh7#
      • 1...Kb1
        • 2.Bg6#
      • 1...b1Q
        • 2.Qf2#
      • 1...b1S
        • 2.Qa2#
      • 1...b1B
        • 2.Qf2#
      • 1...b1R
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAB(A)
      • Vars
        • K(b);S_FLIGHT::B(D)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • P(c);
  • Actual
    • Q(A);N_PINP(a)
    • Threat
      • QAB(A)
    • Vars
      • K(b);S_FLIGHT::B(D)
      • P(a);SBLOCK::QAR(A)
      • P(a);OGATEB::QAR2(A)
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