MESON Chess Problem Database

Problem Display
PID: 82322 (3r1r2/1N6/4R3/R3P2N/4k2n/2Pp1p1B/b2P1K1B/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Scacco!, 1990

3r1r2/1N6/4R3/R3P2N/4k2n/2Pp1p1B/b2P1K1B/8

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Sxd6#
    • 1...Ra8
      • 2.Sd6#
    • 1...Rb8
      • 2.Sd6#
    • 1...Rc8
      • 2.Sd6#
    • 1...Rde8
      • 2.Sd6#
    • 1...Rf4
      • 2.Sg3#
    • 1...Rf6
      • 2.Sxf6#
    • 1...Rfe8
      • 2.Sf6#
    • 1...Rg8
      • 2.Sf6#
    • 1...Rh8
      • 2.Sf6#
    • 1...Bd5
      • 2.Sc5#
  • Tries
    • 1.Ra4+?
      • 1...Kd5
        • 2.Rd4#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Bc4!
    • 1.Rf6?
      • threat
        • 2.Sg3#
      • 1...Rxf6
        • 2.Sxf6#
      • 1...Rg8
        • 2.Rf4#
      • 1...Bd5
        • 2.Sc5#
      • 1...Sf5
        • 2.Bxf5#
      • 1...Rd5!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Sc5#
      • 1...Rxd6
        • 2.Sxd6#
      • 1...Rc8
        • 2.Rd4#
      • 1...Rf4
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(f);N_GUARD::S(J),XR(f)
    • R(f);N_GUARD::S(J)
    • R(g);SBLOCK::S(H)
    • R(g);N_GUARD::S(H),XR(g)
    • R(g);N_GUARD::S(H)
    • B(a);SBLOCK::S(J)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(d);S_FLIGHT::R1(F)
        • R(f);N_GUARD,P_SPINR(f)::R1(F),XR(f)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • R(I);
      • Threat
        • S(H)
      • Vars
        • R(g);XR(I)::S(H),XR(g)
        • R(g);N_GUARD::R1(I)
        • B(a);SBLOCK::S(J)
        • S(e);N_GUARD::B(E),XS(e)
      • Refutation
        • R(f);
  • Actual
    • R(I);
    • Threat
      • S(J)
    • Vars
      • R(f);XR(I)::S(J),XR(f)
      • R(f);N_GUARD::R1(I)
      • R(g);SBLOCK::S(H)
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).