MESON Chess Problem Database

Problem Display
PID: 180972 (5n1b/4p3/2K3pP/p1N1k3/2pr4/1n3Qp1/5P2/B3r3 w - - 0 1)

Preiswerk, Walther Edouard

Schweizerische Schachzeitung, 1929

5n1b/4p3/2K3pP/p1N1k3/2pr4/1n3Qp1/5P2/B3r3

#2

6 + 11

16108 Walther Preiswerks Shachprobleme (M. Henneberger) 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Sd7#
  • Tries
    • 1.Qe4+?
      • 1...Kf6
        • 2.Qf4#
      • 1...Rxe4!
    • 1.Qxg3+?
      • 1...Kf6
        • 2.Qf4#
      • 1...Kf5!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qg5#
      • 1...Kf6
        • 2.Qf4#
      • 1...Sxc5
        • 2.Bxd4#
      • 1...Bf6
        • 2.f4#
      • 1...Se6
        • 2.Sd7#
      • 1...Sh7
        • 2.Sd7#
      • 1...g5
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(j);N_GUARD,SBLOCK::S(D)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(g);S_FLIGHT::QAR2(C)
      • Refutation
        • R(a);XQ(C)
    • Try
      • Q(C);CHECK,XP(c)
      • Vars
        • K(g);S_FLIGHT::QAR2(C)
      • Refutation
        • K(g);N_SPINR(e),P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • K(g);S_FLIGHT::QAR2(C)
      • S(b);N_GUARD,XS(D)::B(A),XR(e)
      • B(k);SBLOCK::P(B)
      • S(j);N_GUARD::S(D)
      • P(h);::QAR2(C),XP(h)
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