MESON Chess Problem Database

Problem Display
PID: 182588 (8/8/1P1B2p1/1n1p2K1/3k1p2/1Pnp2N1/3P4/Qb2R3 w - - 0 1)

Preiswerk, Walther Edouard

Basler Nachrichten, 1906

8/8/1P1B2p1/1n1p2K1/3k1p2/1Pnp2N1/3P4/Qb2R3

#2

8 + 8

16108 Walther Preiswerks Shachprobleme (M. Henneberger) 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Sa3
      • 2.Qxc3#
      • 2.dxc3#
    • 1...Sxd6
      • 2.Qxc3#
    • 1...Sa7
      • 2.Qxc3#
      • 2.dxc3#
    • 1...Sc7
      • 2.Qxc3#
      • 2.dxc3#
  • Tries
    • 1.Kxg6?
      • threat
        • 2.Sf5#
      • 1...Sxd6
        • 2.Qxc3#
      • 1...fxg3!
    • 1.Rf1?
      • threat
        • 2.Rxf4#
      • 1...Sxd6
        • 2.Qxc3#
      • 1...fxg3
        • 2.Rf4#
      • 1...f3!
  • Keys
    • 1.Rh1!
      • 1...Sxd6
        • 2.Qxc3#
      • 1...fxg3
        • 2.Rh4#
      • 1...Ba2
        • 2.Qg1#
      • 1...Bc2
        • 2.Qg1#
      • 1...Sa3
        • 2.Qxc3#
      • 1...Sa7
        • 2.Qxc3#
      • 1...Sc7
        • 2.Qxc3#
      • 1...f3
        • 2.Rh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD,XB(H)::QAB1(A),XS(b)
  • Tries
    • Try
      • K(F);P-FLIGHT,XP(h)
      • Threat
        • S(E)
      • Vars
        • S(f);N_GUARD,XB(H)::QAB1(A),XS(b)
      • Refutation
        • P(e);XS(E)
    • Try
      • R(B);
      • Threat
        • R(B),XP(e)
      • Vars
        • S(f);N_GUARD,XB(H)::QAB1(A),XS(b)
        • P(e);XS(E)::R(B)
      • Refutation
        • P(e);
  • Actual
    • R(B);
    • Vars
      • S(f);N_GUARD,XB(H)::QAB1(A),XS(b)
      • P(e);OGATEB,XS(E)::R(B)
      • B(a);OGATE::QAB(A)
      • S(f);N_GUARD::QAB1(A),XS(b)
      • P(e);OGATEB::R(B)
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