MESON Chess Problem Database

Problem Display
PID: 102014 (1B4QK/1p1N1P2/r3b2R/R1pk1N2/n2p4/1P1p1p2/2P5/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Umenie 64, 2002

1B4QK/1p1N1P2/r3b2R/R1pk1N2/n2p4/1P1p1p2/2P5/8

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Sf6#
    • 1...f2
      • 2.Qg2#
  • Tries
    • 1.Rxc5+?
      • 1...Ke4
        • 2.Sf6#
        • 2.Rh4#
        • 2.Qg4#
      • 1...Sxc5!
    • 1.Qh7?
      • threat
        • 2.Se7#
      • 1...Ke4
        • 2.Sf6#
      • 1...Bxf5
        • 2.Qxf5#
      • 1...Kc6!
    • 1.Qg3?
      • threat
        • 2.Qxf3#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kc6
        • 2.Qd6#
      • 1...Bxf5
        • 2.Qe5#
      • 1...f2
        • 2.Qg2#
        • 2.Qf3#
      • 1...Sc3!
    • 1.Qg4?
      • threat
        • 2.Se7#
        • 2.Qxf3#
      • 1...Bxf5
        • 2.Qxf5#
      • 1...Sc3
        • 2.Se7#
        • 2.Rxc5#
      • 1...f2
        • 2.Se7#
        • 2.Qf3#
        • 2.Qg2#
      • 1...Kc6!
    • 1.c4+?
      • 1...Ke4
        • 2.Qg4#
      • 1...Kc6
        • 2.Qc8#
      • 1...dxc4 ep!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Se7#
      • 1...Ke4
        • 2.Sf6#
      • 1...Kc6
        • 2.Qxe6#
      • 1...Bxf5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(g);SBLOCK::S(F)
    • P(b);OGATEB::QAB(I)
  • Tries
    • Try
      • R(C);CHECK,XP(e)
      • Refutation
        • S(c);XR(C)
    • Try
      • Q(I);
      • Threat
        • S(D)
      • Vars
        • K(f);N_SPINP(e),S_FLIGHT::S(F)
        • B(h);OGATE,XS(D)::QAR2(I),XB(h)
      • Refutation
        • K(f);N_SPINP(e),P_SPINB(h),S_FLIGHT
    • Try
      • Q(I);
      • Threat
        • QAB(I),XP(b)
      • Vars
        • K(f);N_SPINP(e),S_FLIGHT::QAR1(I)
        • K(f);N_SPINP(e),P_SPINB(h),S_FLIGHT::QAR1(I)
        • B(h);XS(D)::QAR1(I)
      • Refutation
        • S(c);
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • B(h);OGATE,XS(D)::QAR2(I),XB(h)
      • Refutation
        • K(f);N_SPINP(e),P_SPINB(h),S_FLIGHT
    • Try
      • P(A);CHECK
      • Vars
        • K(f);N_SPINP(e),S_FLIGHT::QAR2(I)
        • K(f);N_SPINP(e),P_SPINB(h),S_FLIGHT::QAR2(I)
      • Refutation
        • P(d);EP,XP(A)
  • Actual
    • Q(I);
    • Threat
      • S(D)
    • Vars
      • K(f);N_SPINP(e),S_FLIGHT::S(F)
      • K(f);N_SPINP(e),P_SPINB(h),S_FLIGHT::QAR2(I),XB(h)
      • B(h);OGATE,XS(D)::QAR2(I),XB(h)
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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).