MESON Chess Problem Database

Problem Display
PID: 156913 (8/8/4Qp1N/5Nkp/7b/8/5p2/5K2 w - - 0 1)

Achleitner, R

Wiener Hausfrauen-Zeitung, 1914

8/8/4Qp1N/5Nkp/7b/8/5p2/5K2

#2

4 + 5

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qe3#
    • 1...Kg6
      • 2.Qg8#
  • Tries
    • 1.Qc4?
      • 1...Kg6
        • 2.Qg8#
      • 1...Bg3!
    • 1.Qd6?
      • 1...Bg3
        • 2.Qxg3#
      • 1...Kg6!
    • 1.Qe7?
      • 1...Kf4
        • 2.Qe3#
      • 1...Kg6
        • 2.Qg7#
      • 1...Bg3!
    • 1.Qe8?
      • 1...Kf4
        • 2.Qe3#
      • 1...Bg3!
  • Keys
    • 1.Qb3!
      • 1...Kf4
        • 2.Qe3#
      • 1...Kg6
        • 2.Qg8#
      • 1...Bg3
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB1(C)
    • K(c);P-FLIGHT,P_SPINP(e)::QAR2(C)
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(c);P-FLIGHT::QAR2(C)
      • Refutation
        • B(b);
    • Try
      • Q(C);
      • Vars
        • B(b);N_GUARD::QAR2(C),XB(b)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(e)
    • Try
      • Q(C);P_PINP(e)
      • Vars
        • K(c);N_SPINP(e),S_FLIGHT::QAB1(C)
        • K(c);N_SPINP(e),P-FLIGHT::QAR1(C)
      • Refutation
        • B(b);
    • Try
      • Q(C);
      • Vars
        • K(c);S_FLIGHT::QAB1(C)
      • Refutation
        • B(b);
  • Actual
    • Q(C);
    • Vars
      • K(c);S_FLIGHT::QAB1(C)
      • K(c);P-FLIGHT::QAR2(C)
      • B(b);N_GUARD::QAR2(C),XB(b)
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