MESON Chess Problem Database

Problem Display
PID: 182582 (5r2/6Q1/1B2p3/8/8/6p1/K4Ppp/1N4kn w - - 0 1)

Preiswerk, Walther Edouard

Schweizerische Schachzeitung, 1920

5r2/6Q1/1B2p3/8/8/6p1/K4Ppp/1N4kn

#2

5 + 7

16108 Walther Preiswerks Shachprobleme (M. Henneberger) 1949

SOLUTION

  • SOUND
  • Keys
    • 1.Qa1!
      • threat
        • 2.Sd2#
        • 2.Sa3#
        • 2.Sc3#
      • 1...Rxf2+
        • 2.Sd2#
      • 1...Ra8+
        • 2.Sa3#
      • 1...Kf1
        • 2.Sc3#
      • 1...Rc8
        • 2.Sc3#
      • 1...Rd8
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(E);
    • Threat
      • DUALS(3)
    • Vars
      • R(g);CHECK,P_SPINR(g),XP(C)::QAR(E)+S(A)
      • R(g);CHECK::QAR(E)+S(A)
      • K(a);P-FLIGHT::QAR(E)+S(A)
      • R(g);::QAR(E)+S(A)
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