MESON Chess Problem Database

Problem Display
PID: 180930 (6n1/8/1B1pN3/3pk1p1/1r3RB1/1p3P2/7K/8 w - - 0 1)

Preiswerk, Walther Edouard

Berner Heim, 1904

6n1/8/1B1pN3/3pk1p1/1r3RB1/1p3P2/7K/8

#2

6 + 7

16108 Walther Preiswerks Shachprobleme (M. Henneberger) 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Bxd4#
    • 1...Rb5
      • 2.Bd4#
  • Tries
    • 1.Sf8?
      • threat
        • 2.Sg6#
        • 2.Rf5#
      • 1...Kxf4
        • 2.Sg6#
      • 1...Rxf4
        • 2.Sd7#
      • 1...Rxb6
        • 2.Sg6#
      • 1...gxf4
        • 2.Sd7#
      • 1...d4
        • 2.Rf5#
      • 1...Sh6
        • 2.Sg6#
      • 1...Se7!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sd3#
      • 1...Kxf4
        • 2.Sd3#
      • 1...Rxf4
        • 2.Sd7#
      • 1...gxf4
        • 2.Sd7#
      • 1...dxc5
        • 2.Bc7#
      • 1...d4
        • 2.Rf5#
      • 1...Rd4
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(b);N_GUARD::B(E),XR(b)
    • R(b);N_GUARD::B(E)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);S_FLIGHT,XR(C)::S(F)
        • R(b);SBLOCK,XR(C)::S(F)
        • R(b);XB(E)::S(F)
        • P(e);SBLOCK,XR(C)::S(F)
        • P(c);::R1(C)
        • S(g);::S(F)
      • Refutation
        • S(g);
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(d);S_FLIGHT,XR(C)::S(F)
      • R(b);SBLOCK,XR(C)::S(F)
      • P(e);SBLOCK,XR(C)::S(F)
      • P(f);OGATEB,XS(F)::B(E)
      • P(c);SBLOCK::R1(C)
      • R(b);SBLOCK::R1(C)
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