MESON Chess Problem Database

Problem Display
PID: 225792 (1b6/1Q6/2P1PR2/3Pk1nN/1B3pP1/1NP4n/5p2/K2R3b w - - 0 1)

Slesarenko, Anatoly Vasilevich

Vokal, Stanislav

3rd Prize, Praca, 1999

1b6/1Q6/2P1PR2/3Pk1nN/1B3pP1/1NP4n/5p2/K2R3b

#2

12 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Qxb8#
    • 1...Se4
      • 2.Rf5#
    • 1...Sxe6
      • 2.Rxe6#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Qxb8#
      • 1...Kd6
        • 2.Sd7#
      • 1...Sxe6
        • 2.Rxe6#
      • 1...Bd6
        • 2.Rf5#
      • 1...Ba7
        • 2.Qc7#
      • 1...Bc7
        • 2.Qxc7#
      • 1...Se4
        • 2.Sd7#
      • 1...Sf7!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Rf5#
      • 1...Kxd5
        • 2.Qb5#
      • 1...Bxd5
        • 2.Qxb8#
      • 1...Be4
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);SBLOCK::QAB(L),XB(g)
    • S(f);SBLOCK::R1(K)
    • S(f);OGATE,XP(J)::R1(K),XS(f)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB(L),XB(g)
      • Vars
        • K(e);S_FLIGHT::B(E)+S(C)
        • S(f);OGATE,XP(J)::R1(K),XS(f)
        • B(g);SBLOCK::R1(K)
        • B(g);N_GUARD::QAB(L)
        • B(g);N_GUARD::QAB(L),XB(g)
        • S(f);SBLOCK::S(C)
      • Refutation
        • S(f);
  • Actual
    • S(C);
    • Threat
      • R1(K)
    • Vars
      • K(e);OGATEB,P-FLIGHT,XP(G)::QAR2(L)
      • B(a);SBLOCK,XP(G)::QAB(L),XB(g)
      • B(a);SBLOCK::S(C)
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).