MESON Chess Problem Database

Problem Display
PID: 268263 (8/1p1p3p/1P1R3K/1N1nk3/1P1N3B/4pP2/4P2P/8 w - - 0 1)

Dittrich, Kurt

Die Schwalbe, 1931

8/1p1p3p/1P1R3K/1N1nk3/1P1N3B/4pP2/4P2P/8

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Bg3#
    • 1...Sc3
      • 2.Bg3#
    • 1...Sxb4
      • 2.Bg3#
    • 1...Sf4
      • 2.Bf6#
    • 1...Sxb6
      • 2.Bg3#
    • 1...Sf6
      • 2.Bg3#
    • 1...Sc7
      • 2.Bg3#
    • 1...Se7
      • 2.Bg3#
  • Tries
    • 1.Be1?
      • 1...Kf4
        • 2.Bg3#
      • 1...Sxb4
        • 2.Bg3#
      • 1...Sxb6
        • 2.Bg3#
      • 1...Sc3
        • 2.Bg3#
      • 1...Sf6
        • 2.Bg3#
      • 1...Sc7
        • 2.Bg3#
      • 1...Se7
        • 2.Bg3#
      • 1...Sf4!
    • 1.Rxd5+?
      • 1...Kf4
        • 2.Bg3#
        • 2.Bg5#
        • 2.Rf5#
      • 1...Kxd5!
    • 1.Re6+?
      • 1...Kf4
        • 2.Bg3#
        • 2.Bg5#
        • 2.Re4#
      • 1...dxe6!
    • 1.h3?
      • 1...Sxb4
        • 2.Bg3#
      • 1...Sxb6
        • 2.Bg3#
      • 1...Sf4
        • 2.Bf6#
      • 1...Sc3
        • 2.Bg3#
      • 1...Sf6
        • 2.Bg3#
      • 1...Sc7
        • 2.Bg3#
      • 1...Se7
        • 2.Bg3#
      • 1...Kf4!
  • Keys
    • 1.Sa3!
      • 1...Kxd4
        • 2.Bf6#
      • 1...Kf4
        • 2.Bg3#
      • 1...Kxd6
        • 2.Sc4#
      • 1...Sxb4
        • 2.Bg3#
      • 1...Sxb6
        • 2.Bg3#
      • 1...Sc3
        • 2.Bg3#
      • 1...Sf4
        • 2.Sc4#
      • 1...Sf6
        • 2.Bg3#
      • 1...Sc7
        • 2.Bg3#
      • 1...Se7
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_CUTS(b),S_FLIGHT::B(F)
    • S(b);N_GUARD::B(F)
    • S(b);N_GUARD,XP(D)::B(F)
    • S(b);N_GUARD,SBLOCK::B(F)
    • S(b);N_GUARD,XP(H)::B(F)
  • Tries
    • Try
      • B(F);
      • Vars
        • K(c);S_CUTS(b),S_FLIGHT::B(F)
        • S(b);N_GUARD,XP(D)::B(F)
        • S(b);N_GUARD,XP(H)::B(F)
        • S(b);N_GUARD::B(F)
      • Refutation
        • S(b);
    • Try
      • R(I);CHECK,XS(b)
      • Refutation
        • K(c);P-FLIGHT,XR(I)
    • Try
      • R(I);CHECK
      • Refutation
        • P(e);XR(I)
    • Try
      • P(B);
      • Vars
        • S(b);N_GUARD,XP(D)::B(F)
        • S(b);N_GUARD,XP(H)::B(F)
        • S(b);N_GUARD,SBLOCK::B(F)
        • S(b);N_GUARD::B(F)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(G);
    • Vars
      • K(c);N_GUARD,P_SPINS(b),S_FLIGHT,XS(E)::B(F)
      • K(c);N_GUARD,S_CUTS(b),S_FLIGHT::B(F)
      • K(c);N_GUARD,S_FLIGHT,XR(I)::S(G)
      • S(b);N_GUARD,XP(D)::B(F)
      • S(b);N_GUARD,XP(H)::B(F)
      • S(b);N_GUARD::B(F)
      • S(b);SBLOCK::S(G)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).