MESON Chess Problem Database

Problem Display
PID: 263315 (8/5K2/R6N/2pk4/2np4/1P1p4/7B/4R3 w - - 0 1)

Lehmann, Tadeusz

Szachy, 1985

8/5K2/R6N/2pk4/2np4/1P1p4/7B/4R3

#2

6 + 5

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Re5#
      • 2.Rd6#
    • 1...Sd2
      • 2.Re5#
      • 2.Rd6#
    • 1...Sa3
      • 2.Re5#
      • 2.Rd6#
    • 1...Sa5
      • 2.Re5#
      • 2.Rd6#
    • 1...Se5+
      • 2.Rxe5#
    • 1...Sd6+
      • 2.Rxd6#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Sf6#
      • 1...Se5+
        • 2.Rxe5#
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Sb6!
    • 1.Sf5?
      • threat
        • 2.Se7#
      • 1...Se5+
        • 2.Rxe5#
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Se3!
  • Keys
    • 1.Sg8!
      • threat
        • 2.Sf6#
        • 2.Se7#
      • 1...Se5+
        • 2.Rxe5#
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Se3
        • 2.Sf6#
      • 1...Sb6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);CHECK,N_GUARD::R1(A),XS(b)
    • S(b);CHECK,N_GUARD::R1(D),XS(b)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • S(b);CHECK,N_GUARD::R1(A),XS(b)
        • S(b);CHECK,N_GUARD::R1(D),XS(b)
      • Refutation
        • S(b);
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • S(b);CHECK,N_GUARD::R1(A),XS(b)
        • S(b);CHECK,N_GUARD::R1(D),XS(b)
      • Refutation
        • S(b);
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • S(b);CHECK,N_GUARD::R1(A),XS(b)
      • S(b);CHECK,N_GUARD::R1(D),XS(b)
      • S(b);::S(E)
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).