MESON Chess Problem Database

Problem Display
PID: 1956 (8/8/8/6Q1/4R3/2K2p2/5k2/5b2 w - - 0 1)

Loyd, Sam

New York Musical World, 1859

8/8/8/6Q1/4R3/2K2p2/5k2/5b2

#2

3 + 3

119 Tidskrift for Schack 1909
5206 Sam Loyd and His Chess Problems 1913
2012 Miniature Chess Problems from Many Countries 1981
3295 Einfuhrung in die Welt des Schachproblem 1984
3310 2345 Chess Problems 1997
5454 Near Snap 2007
17121 Encyclopedia of Chess Problems (Velimirovic/Valtonen) 2012
3713 Snap 2015
9939 64 Shakhmatnoe obozrenie 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Qh4+?
      • 1...Kg2
        • 2.Rg4#
      • 1...Kg1!
  • Keys
    • 1.Re1!
      • 1...Kxe1
        • 2.Qd2#
      • 1...Be2
        • 2.Qg1#
      • 1...Bg2
        • 2.Qh4#
      • 1...Bd3
        • 2.Qg1#
      • 1...Bh3
        • 2.Qg1#
      • 1...Bc4
        • 2.Qg1#
      • 1...Bb5
        • 2.Qg1#
      • 1...Ba6
        • 2.Qg1#

This anticipates 55132(1880), 154095(1890), 140216(1975)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(b);S_FLIGHT,XR(B)::QAB1(C)
      • B(a);::QAB1(C)
      • B(a);SBLOCK::QAB(C)
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