Problem Display
PID: 3 (3R4/4p2r/2p2pQB/K2p2r1/b3B2R/1P6/NpNkpp2/3nb3 w - - 0 1)

Loshinski, Lev Ilich

1st Prize, 64 Shakhmatnoe obozrenie, 1930/II

3R4/4p2r/2p2pQB/K2p2r1/b3B2R/1P6/NpNkpp2/3nb3

#2

9 + 13


3098 FIDE Album (1914-1944) (I) 1971
102 Probleemblad 1976
5314 Grossmeister Shakhmatnoi Kompozitsii 1980

SOLUTION


  • SOUND
  • Sets
    • 1...c5
      • 2.Rxd5#
  • Keys
    • 1.Bxd5!
      • threat
        • 2.Rd4#
      • 1...f5
        • 2.Be4#
      • 1...Bb5
        • 2.Bc4#
      • 1...c5
        • 2.Bc6#
      • 1...e5
        • 2.Bf7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(j);N_GUARD::R(I),XP(h)
  • Actual
    • B(D);P_SPINB(D),XP(h)
    • Threat
      • R(E)
    • Vars
      • P(k);N_PINB(D)::R(I)+B(D)
      • B(g);N_PINB(D)::R(I)+B(D)
      • P(j);N_PINB(D)::R(I)+B(D)
      • P(l);N_PINB(D)::R(I)+B(D)


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).