MESON Chess Problem Database

Problem Display
PID: 242220 (4R3/1r2B1b1/3p1p2/p7/5N1K/n4R1p/2p1N1p1/2Qnk3 w - - 0 1)

Kisis, Imants J

Schach, 1969

4R3/1r2B1b1/3p1p2/p7/5N1K/n4R1p/2p1N1p1/2Qnk3

#2

7 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Bxd6?
      • threat
        • 2.Sd3#
      • 1...Rb3
        • 2.Sc3#
      • 1...Rb4
        • 2.Sd4#
      • 1...Re7!
    • 1.Bf8?
      • threat
        • 2.Sd3#
      • 1...Rb3
        • 2.Sc3#
      • 1...Rb4
        • 2.Sd4#
      • 1...Re7!
  • Keys
    • 1.Bd8!
      • threat
        • 2.Sd3#
      • 1...Rb3
        • 2.Sc3#
      • 1...Rb4
        • 2.Sd4#
      • 1...Re7
        • 2.Bxa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);XP(h)
      • Threat
        • S(D)
      • Vars
        • R(j);N_GUARD::R(G)+S(B)
        • R(j);N_GUARD,P_PINS(D)::R(G)+S(B)
      • Refutation
        • R(j);
    • Try
      • B(F);
      • Threat
        • S(D)
      • Vars
        • R(j);N_GUARD::R(G)+S(B)
        • R(j);N_GUARD,P_PINS(D)::R(G)+S(B)
      • Refutation
        • R(j);
  • Actual
    • B(F);
    • Threat
      • S(D)
    • Vars
      • R(j);N_GUARD::R(G)+S(B)
      • R(j);N_GUARD,P_PINS(D)::R(G)+S(B)
      • R(j);N_GUARD::B(F),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).