MESON Chess Problem Database

Problem Display
PID: 255604 (6bk/5p2/4PK2/Q4P2/8/8/8/8 w - - 0 1)

Renner, Kurt

Wiener Schachzeitung, 1934

6bk/5p2/4PK2/Q4P2/8/8/8/8

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • 1...Kh7
        • 2.Qh3#
      • 1...Bh7
        • 2.Kxf7#
      • 1...fxe6!
    • 1.Qc7?
      • 1...Kh7
        • 2.Qh2#
      • 1...fxe6
        • 2.Qg7#
      • 1...Bh7!
    • 1.Qa1?
      • 1...Kh7
        • 2.Qh1#
      • 1...Bh7
        • 2.Kxf7#
      • 1...fxe6!
    • 1.Qa8?
      • 1...Kh7
        • 2.Qh1#
      • 1...fxe6!
  • Keys
    • 1.Qe5!
      • 1...Kh7
        • 2.Qh2#
      • 1...fxe6
        • 2.Kg6#
      • 1...Bh7
        • 2.Kxf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(c);P-FLIGHT,S_CUTB(b)::QAR(A)
        • B(b);SBLOCK::QAB(A)+K(D),XP(a)
      • Refutation
        • P(a);XP(C)
    • Try
      • Q(A);
      • Vars
        • K(c);P-FLIGHT,P_SPINP(a),S_CUTB(b)::QAR(A)
        • P(a);OGATE,XP(C)::QAB1(A)
      • Refutation
        • B(b);
    • Try
      • Q(A);
      • Vars
        • K(c);P-FLIGHT,S_CUTB(b)::QAR(A)
        • B(b);SBLOCK::QAB(A)+K(D),XP(a)
      • Refutation
        • P(a);XP(C)
    • Try
      • Q(A);P_PINB(b)
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT,S_CUTB(b)::QAR(A)
      • Refutation
        • P(a);XP(C)
  • Actual
    • Q(A);
    • Vars
      • K(c);P-FLIGHT,S_CUTB(b)::QAR(A)
      • P(a);XP(C)::QAB(A)+K(D)
      • B(b);SBLOCK::QAB(A)+K(D),XP(a)
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