MESON Chess Problem Database

Problem Display
PID: 4529 (2N5/6k1/2Q5/6N1/3R2K1/8/8/8 w - - 0 1)

Minckwitz, Johannes

Deutsche Schachzeitung, 1871

2N5/6k1/2Q5/6N1/3R2K1/8/8/8

#2

5 + 1

3757 Schachminiaturen I 1902
3295 Einfuhrung in die Welt des Schachproblem 1984
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Se7?
      • 1...Kh8
        • 2.Qf6#
        • 2.Qh6#
      • 1...Kf8!
    • 1.Qb7+?
      • 1...Kg6
        • 2.Rd6#
      • 1...Kh6
        • 2.Rd6#
        • 2.Qh7#
      • 1...Kf8
        • 2.Rd8#
        • 2.Qf7#
      • 1...Kg8
        • 2.Rd8#
      • 1...Kh8
        • 2.Rd8#
        • 2.Qh7#
      • 1...Kf6!
    • 1.Qd6?
      • 1...Kh8
        • 2.Qf8#
      • 1...Kg8!
    • 1.Qe6?
      • 1...Kf8
        • 2.Qf7#
      • 1...Kh8!
    • 1.Qf6+?
      • 1...Kg8
        • 2.Se7#
        • 2.Rd8#
      • 1...Kxf6!
    • 1.Qg6+?
      • 1...Kf8
        • 2.Se6#
        • 2.Sh7#
        • 2.Rf4#
        • 2.Rd8#
        • 2.Qf7#
      • 1...Kh8
        • 2.Sf7#
        • 2.Rd8#
        • 2.Qh7#
      • 1...Kxg6!
    • 1.Qh6+?
      • 1...Kg8
        • 2.Se7#
        • 2.Rd8#
      • 1...Kxh6!
    • 1.Qc7+?
      • 1...Kg6
        • 2.Rd6#
      • 1...Kh6
        • 2.Rd6#
        • 2.Qh7#
      • 1...Kf8
        • 2.Rd8#
        • 2.Qf7#
      • 1...Kg8
        • 2.Rd8#
      • 1...Kh8
        • 2.Rd8#
        • 2.Qh7#
      • 1...Kf6!
  • Keys
    • 1.Qc3!
      • 1...Kf6
        • 2.Rd6#
      • 1...Kg6
        • 2.Rd6#
      • 1...Kh6
        • 2.Rd6#
      • 1...Kf8
        • 2.Rd8#
      • 1...Kg8
        • 2.Rd8#
      • 1...Kh8
        • 2.Rd8#

This anticipates 159647(1919), 231267(1927)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::QAB(D)+R(A),DCHECK
      • K(a);P-FLIGHT::R(A)
      • K(a);S_FLIGHT::R(A)
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