MESON Chess Problem Database

Problem Display
PID: 149197 (1b6/3r1q2/1p3Nb1/1K1p1QN1/3kp2R/4p3/2P2r2/4B3 w - - 0 1)

Lukashev, Viktor Sergeevich

Best Problems, 2010

1b6/3r1q2/1p3Nb1/1K1p1QN1/3kp2R/4p3/2P2r2/4B3

#2

7 + 10

15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Sxe6#
    • 1...Qg7
      • 2.Se6#
    • 1...Qh7
      • 2.Se6#
    • 1...Qf8
      • 2.Se6#
    • 1...Re2
      • 2.Sf3#
    • 1...Rg2
      • 2.Sf3#
    • 1...Rh2
      • 2.Sf3#
    • 1...Rf3
      • 2.Sxf3#
  • Tries
    • 1.Sgxe4?
      • threat
        • 2.Bc3#
      • 1...Rxc2
        • 2.Sd6#
      • 1...dxe4
        • 2.Rxe4#
      • 1...e2
        • 2.Bxf2#
      • 1...Rc7
        • 2.Sxf2#
      • 1...Rd2!
  • Keys
    • 1.Sfxe4!
      • threat
        • 2.Bc3#
      • 1...Rxc2
        • 2.Sd6#
      • 1...dxe4
        • 2.Rxe4#
      • 1...e2
        • 2.Bxf2#
      • 1...Rd2
        • 2.Sf3#
      • 1...Rc7
        • 2.Sxf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 8
  • Sets
    • Q(i);N_GUARD::S(F),XQ(i)
    • Q(i);N_GUARD::S(F)
    • R(a);N_GUARD::S(F)
    • R(a);N_GUARD::S(F),XR(a)
  • Tries
    • Try
      • S(F);XP(d)
      • Threat
        • B(A)
      • Vars
        • R(a);N_GUARD,XP(B)::R(C)+S(F)
        • P(e);OGATE,P_SPINP(e),XS(F)::R1(C),XP(e)
        • P(b);OGATEB::B(A),XR(a)
        • R(h);S_CUTB(j)::R(C)+S(F),XR(a)
      • Refutation
        • R(a);
  • Actual
    • S(G);XP(d)
    • Threat
      • B(A)
    • Vars
      • R(a);N_GUARD,XP(B)::R(C)+S(G)
      • P(e);OGATE,P_SPINP(e),XS(G)::R1(C),XP(e)
      • P(b);OGATEB::B(A),XR(a)
      • R(a);N_GUARD::S(F)
      • R(h);S_CUTB(j)::R(C)+S(G),XR(a)
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).