MESON Chess Problem Database

Problem Display
PID: 222452 (7K/8/2P2P2/2p1k3/2B5/B7/1P1NNP1P/6Q1 w - - 0 1)

Hulsen, Bernhard

Gorlitzer Anzeiger, 1884

7K/8/2P2P2/2p1k3/2B5/B7/1P1NNP1P/6Q1

#2

11 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.f4+?
      • 1...Kf5
        • 2.Qg5#
      • 1...Kxf6
        • 2.Qg5#
      • 1...Kd6!
    • 1.h4?
      • 1...Kf5
        • 2.Qg5#
      • 1...Kxf6
        • 2.Qg5#
      • 1...Kd6!
  • Keys
    • 1.Sd4!
      • 1...Kxd4
        • 2.f4#
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd6
        • 2.Qg3#
      • 1...Kxf6
        • 2.Qg7#
      • 1...cxd4
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • K(b);S_FLIGHT,XP(J)::QAB1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • P(F);
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • K(b);S_FLIGHT,XP(J)::QAB1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(b);S_FLIGHT,XS(D)::QAB(A)+P(E)
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);P_SPINP(a),S_FLIGHT::QAB(A)
      • K(b);OGATEB,S_FLIGHT,XP(J)::QAB1(A)
      • P(a);SBLOCK,XS(D)::QAR2(A)
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