MESON Chess Problem Database

Problem Display
PID: 4887 (7k/4N1pB/4p3/4K3/8/8/8/1Q6 w - - 0 1)

Steinweg, Richard

Deutsches Wochenschach, 1893

7k/4N1pB/4p3/4K3/8/8/8/1Q6

#2

4 + 3

4331 Schachminiaturen II 1903
2012 Miniature Chess Problems from Many Countries 1981
3295 Einfuhrung in die Welt des Schachproblem 1984
3310 2345 Chess Problems 1997
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bg8?
      • threat
        • 2.Qh7#
        • 2.Qh1#
      • 1...g5
        • 2.Qh7#
      • 1...g6!
  • Keys
    • 1.Qb7!
      • 1...Kxh7
        • 2.Qh1#
      • 1...g5
        • 2.Sg6#
      • 1...g6
        • 2.Sxg6#

This anticipates 206575(1925), 78584(1984)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(A)
      • Refutation
        • P(b);
  • Actual
    • Q(A);
    • Vars
      • K(c);OGATEB,P-FLIGHT,XB(D)::QAR(A)
      • P(b);::S(C)
      • P(b);::S(C),XP(b)
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