MESON Chess Problem Database

Problem Display
PID: 233234 (8/8/3p4/1Q3p2/1B1k4/5K2/8/8 w - - 0 1)

Muller, Dieter

Freie Presse, 1966

8/8/3p4/1Q3p2/1B1k4/5K2/8/8

#2

3 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qd3+?
      • 1...Ke5
        • 2.Qxd6#
      • 1...Kxd3!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Bc3#
      • 1...Kxc4!
    • 1.Qc5+?
      • 1...Kd3
        • 2.Qc3#
      • 1...dxc5!
  • Keys
    • 1.Qc6!
      • 1...Kd3
        • 2.Qc3#
      • 1...Ke5
        • 2.Qxd6#
      • 1...f4
        • 2.Qe4#
      • 1...d5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(C),XP(c)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • P(c);XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • K(a);S_FLIGHT::QAB1(C),XP(c)
      • P(b);N_GUARD::QAR1(C)
      • P(c);SBLOCK::QAB1(C)
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