MESON Chess Problem Database

Problem Display
PID: 99947 (8/2p2N2/3p1p2/3P3p/4k1nR/p1P2RBp/B3Pp1P/5K2 w - - 0 1)

Karsch, Wilhelm

3rd Prize, Munkassakk, 1925

8/2p2N2/3p1p2/3P3p/4k1nR/p1P2RBp/B3Pp1P/5K2

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Sg5#
    • 1...c5
      • 2.Sxd6#
    • 1...c6
      • 2.Sxd6#
  • Tries
    • 1.Bb3?
      • 1...f5
        • 2.Sg5#
      • 1...c5
        • 2.Sxd6#
      • 1...c6
        • 2.Sxd6#
      • 1...a2!
    • 1.Bc4?
      • 1...f5
        • 2.Sg5#
      • 1...c5
        • 2.Sxd6#
      • 1...c6
        • 2.Sxd6#
      • 1...a2!
    • 1.Rd3?
      • 1...f5
        • 2.Sg5#
      • 1...c5
        • 2.Sxd6#
      • 1...c6
        • 2.Sxd6#
      • 1...Kf5!
    • 1.Re3+?
      • 1...Kf5
        • 2.Bb1#
      • 1...Kxe3!
  • Keys
    • 1.Bf4!
      • 1...Sxh2+
        • 2.Bxh2#
      • 1...Se3+
        • 2.Bxe3#
      • 1...Kf5
        • 2.Bb1#
      • 1...f5
        • 2.Sg5#
      • 1...Se5
        • 2.Bxe5#
      • 1...Sh6
        • 2.Bxh6#
      • 1...c5
        • 2.Sxd6#
      • 1...c6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(h);N_GUARD::S(J)
    • P(i);N_GUARD::S(J),XP(g)
  • Tries
    • Try
      • B(B);
      • Vars
        • P(h);N_GUARD::S(J)
        • P(i);N_GUARD::S(J),XP(g)
      • Refutation
        • P(b);
    • Try
      • B(B);
      • Vars
        • P(h);N_GUARD::S(J)
        • P(i);N_GUARD::S(J),XP(g)
      • Refutation
        • P(b);
    • Try
      • R(F);
      • Vars
        • P(h);N_GUARD,SBLOCK::S(J)
        • P(i);N_GUARD::S(J),XP(g)
      • Refutation
        • K(d);N_SPINS(e),S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(d);N_SPINS(e),S_FLIGHT::B(B)
      • Refutation
        • K(d);N_SPINS(e),P-FLIGHT,XR(F)
  • Actual
    • B(G);N_PINS(e)
    • Vars
      • S(e);CHECK,OGATE,XP(D)::R(H)+B(G),XS(e)
      • S(e);CHECK,OGATEB::R(H)+B(G),XS(e)
      • K(d);S_FLIGHT::B(B)
      • P(h);N_GUARD,SBLOCK::S(J)
      • S(e);OGATEB::R(H)+B(G),XS(e)
      • P(i);N_GUARD::S(J),XP(g)
HTML5 logo

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).