MESON Chess Problem Database

Problem Display
PID: 15596 (2NB3b/7Q/n1R1P1p1/2p1k1r1/2R2p2/1KN2p1b/8/8 w - - 0 1)

Slesarenko, Anatoly Vasilevich

3rd Prize, Dubinin MT (Gorkovskaya Pravda), 1986-1987

2NB3b/7Q/n1R1P1p1/2p1k1r1/2R2p2/1KN2p1b/8/8

#2

8 + 9

3297 FIDE Album (1986-1988) 1995
102 Probleemblad 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Re4#
    • 1...Bf5
      • 2.Qxh8#
  • Tries
    • 1.Se7?
      • threat
        • 2.Qxh8#
      • 1...Kf6
        • 2.Qxh8#
      • 1...Rf5
        • 2.Sxg6#
      • 1...Bf6
        • 2.Re4#
      • 1...Bg7
        • 2.Qxg7#
      • 1...Rh5!
    • 1.Bc7+?
      • 1...Kf5
        • 2.Rxf4#
      • 1...Kf6
        • 2.Qf7#
      • 1...Sxc7!
    • 1.R6xc5+?
      • 1...Kxe6
        • 2.Qe7#
      • 1...Sxc5+!
    • 1.Qc7+?
      • 1...Kf5
        • 2.Rxf4#
        • 2.Qxf4#
      • 1...Sxc7!
    • 1.Qf7?
      • threat
        • 2.Re4#
        • 2.Qxf4#
      • 1...Bxe6
        • 2.Rxe6#
        • 2.Qxe6#
        • 2.Qxf4#
      • 1...Bf6
        • 2.Qxf6#
      • 1...Rg4
        • 2.Re4#
      • 1...Rf5
        • 2.Re4#
      • 1...Bf5!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Re4#
      • 1...Kxe6
        • 2.Qe7#
      • 1...Bxe6
        • 2.Qxh8#
      • 1...Bf5
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(f);SBLOCK::R1(C)
    • B(b);SBLOCK::QAB(F),XB(i)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAB(F),XB(i)
      • Vars
        • K(e);S_FLIGHT::QAB(F),XB(i)
        • R(f);N_GUARD,SBLOCK::S(G),XP(h)
        • B(i);SBLOCK::R1(C)
        • B(i);N_GUARD::QAB(F),XB(i)
      • Refutation
        • R(f);
    • Try
      • B(H);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINP(h)::R1(C),XP(c)
        • K(e);S_FLIGHT::QAR1(F)
      • Refutation
        • S(g);XB(H)
    • Try
      • R(D);CHECK,XP(d)
      • Vars
        • K(e);P-FLIGHT,XP(E)::QAR1(F)
      • Refutation
        • S(g);CHECK,XR(D)
    • Try
      • Q(F);CHECK
      • Refutation
        • S(g);XQ(F)
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(i);N_GUARD::QAB1(F),XB(i)
        • R(f);::R1(C)
      • Refutation
        • B(b);
  • Actual
    • S(G);
    • Threat
      • R1(C)
    • Vars
      • K(e);OGATEB,P-FLIGHT,XP(E)::QAR1(F)
      • B(b);P_PINR(C),SBLOCK,XP(E)::QAB(F),XB(i)
      • B(b);SBLOCK::S(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).