MESON Chess Problem Database

Problem Display
PID: 6331 (8/8/8/8/8/8/2k1p3/KN1R2Q1 w - - 0 1)

Lindgren, Frithiof

1st Prize, Svenska Dagbladet, 1928

8/8/8/8/8/8/2k1p3/KN1R2Q1

#2

4 + 2

35 L'Italia Scacchistica 1930
2012 Miniature Chess Problems from Many Countries 1981
3295 Einfuhrung in die Welt des Schachproblem 1984
5395 Schach fur Nussknacker 1994
3310 2345 Chess Problems 1997
4883 Still More Fun with Chess Miniatures 2002
133 The Problemist Supplement 2009
5454 Near Snap 2017
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Qe3!
      • threat
        • 2.Rc1#
        • 2.Qd3#
      • 1...Kxd1
        • 2.Qd2#
      • 1...exd1Q
        • 2.Qc3#
      • 1...exd1S
        • 2.Sa3#
      • 1...exd1B
        • 2.Sa3#
        • 2.Qc3#
      • 1...exd1R
        • 2.Qc3#
      • 1...e1Q
        • 2.Qd3#
      • 1...e1S
        • 2.Rc1#
      • 1...e1R
        • 2.Qd3#

This anticipates 12368(1978), 161522(1996)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);S_FLIGHT,XR(C)::QAR1(D)
      • P(b);P_PINS(B),SBLOCK,XR(C)::QAR1(D)
      • P(b);SBLOCK,XR(C)::S(B)
      • P(b);::QAB1(D)
      • P(b);::R1(C)
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