MESON Chess Problem Database

Problem Display
PID: 145714 (5N2/3p4/p2P1p2/R4P1r/RKN1k3/PPBp2Qp/3P2n1/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

1st Prize, Shakhmatnaya Poeziya, 2006

5N2/3p4/p2P1p2/R4P1r/RKN1k3/PPBp2Qp/3P2n1/8

#2

12 + 8

23 Die Schwalbe 2011
15323 FIDE Album (2004-2006) 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Qe3#
      • 2.Qg4#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sf4
      • 2.Qe3#
    • 1...Sh4
      • 2.Qe3#
      • 2.Qg4#
  • Tries
    • 1.Se3?
      • threat
        • 2.Kc5#
      • 1...Sxe3
        • 2.Qxe3#
      • 1...Rxf5!
    • 1.Se5?
      • threat
        • 2.Qf3#
      • 1...Kxf5
        • 2.Qg4#
      • 1...Rxf5
        • 2.Kc5#
      • 1...fxe5
        • 2.Rxe5#
      • 1...Se1
        • 2.Qg4#
      • 1...Sh4
        • 2.Qg4#
      • 1...Sf4!
    • 1.Qxg2+?
      • 1...Kf4
        • 2.Sg6#
      • 1...hxg2!
  • Keys
    • 1.Kc5!
      • threat
        • 2.Se3#
      • 1...Rxf5+
        • 2.Se5#
      • 1...Kxf5
        • 2.Kd4#
      • 1...Se3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::QAR1(E),XS(a)
    • S(a);N_GUARD::QAR1(E)
  • Tries
    • Try
      • S(H);
      • Threat
        • R(F)+K(G)
      • Vars
        • S(a);OGATE,XS(H)::QAR1(E),XS(a)
      • Refutation
        • R(e);XP(J)
    • Try
      • S(H);
      • Threat
        • QAB1(E)
      • Vars
        • K(d);S_FLIGHT,XP(J)::QAB1(E)
        • R(e);SBLOCK,XP(J)::R(F)+K(G)
        • P(g);OGATE,XS(H)::R1(I),XP(g)
        • S(a);N_GUARD::QAR2(E)
      • Refutation
        • S(a);
    • Try
      • Q(E);CHECK,XS(a)
      • Vars
        • K(d);P-FLIGHT::S(L)
      • Refutation
        • P(c);XQ(E)
  • Actual
    • K(G);P_SPINP(J),S_FLIGHT
    • Threat
      • R(F)+S(H)
    • Vars
      • R(e);CHECK,SBLOCK,XP(J)::R(F)+S(H)
      • K(d);S_FLIGHT,XP(J)::R(I)+K(G)
      • S(a);::R(F)+S(H),XS(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).