Problem Display
PID: 273971 (1B1K2B1/3pp3/4NP1b/1R2Pk1P/r2pNp2/5P2/8/8 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2023

1B1K2B1/3pp3/4NP1b/1R2Pk1P/r2pNp2/5P2/8/8

#2

10 + 7


SOLUTION


  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sxd4#
    • 1...Ra2
      • 2.Sxd4#
    • 1...Ra3
      • 2.Sxd4#
    • 1...Ra5
      • 2.Sxd4#
    • 1...Ra6
      • 2.Sxd4#
    • 1...Ra7
      • 2.Sxd4#
    • 1...Ra8
      • 2.Sxd4#
    • 1...Bg5
      • 2.Sg7#
    • 1...Bg7
      • 2.Sxg7#
    • 1...dxe6
      • 2.Bh7#
    • 1...d5
      • 2.exd5 ep#
    • 1...d6
      • 2.exd6#
    • 1...exf6
      • 2.Sd6#
  • Tries
    • 1.Kxe7?
      • threat
        • 2.Sd6#
        • 2.Bh7#
      • 1...dxe6
        • 2.Bxe6#
        • 2.Bh7#
      • 1...Ra6
        • 2.Sxd4#
        • 2.Bh7#
      • 1...d5
        • 2.Bh7#
        • 2.exd5 ep#
      • 1...d6
        • 2.Sxd6#
        • 2.Bh7#
        • 2.exd6#
      • 1...Bf8+!
    • 1.S4g5?
      • threat
        • 2.Bh7#
      • 1...Bxg5
        • 2.Sg7#
      • 1...dxe6!
  • Keys
    • 1.fxe7!
      • threat
        • 2.Sd6#
      • 1...dxe6
        • 2.Bh7#
      • 1...Ra6
        • 2.Sxd4#
      • 1...d5
        • 2.exd5 ep#
      • 1...d6
        • 2.Sxd6#
        • 2.exd6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 10
  • Sets
    • R(a);N_GUARD::S(F),XP(b)
    • R(a);N_GUARD,P_PINB(H)::S(F),XP(b)
    • B(e);N_GUARD::S(F)
    • B(e);N_GUARD::S(F),XB(e)
    • P(f);SBLOCK,XS(F)::B(J)
    • P(f);OGATE::R(C)+P(D),XP(f),EP
    • P(f);OGATE::R(C)+P(D),XP(f)
    • P(g);N_GUARD,XP(G)::S(B)
  • Tries
    • Try
      • K(I);S_FLIGHT,XP(g)
      • Threat
        • DUALS(2)
      • Refutation
        • B(e);CHECK
    • Try
      • S(B);
      • Threat
        • B(J)
      • Vars
        • B(e);N_GUARD,SBLOCK,XS(B)::S(F)
      • Refutation
        • P(f);XS(F)
  • Actual
    • P(G);XP(g)
    • Threat
      • S(B)
    • Vars
      • P(f);SBLOCK,XS(F)::B(J)
      • R(a);N_GUARD::S(F),XP(b)
      • P(f);OGATE::R(C)+P(D),XP(f),EP


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).