MESON Chess Problem Database

Problem Display
PID: 29674 (2r5/3QN1q1/5r2/4p3/Rnp1k1p1/R3NpK1/6n1/6BB w - - 0 1)

Dyachuk, Vasyl Vasilovich

3rd HM., Barulin-100 MT, 1999

2r5/3QN1q1/5r2/4p3/Rnp1k1p1/R3NpK1/6n1/6BB

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe3
      • 2.Rxe3#
    • 1...Sa2
      • 2.Qd3#
      • 2.Qd5#
    • 1...Sc2
      • 2.Qd3#
      • 2.Qd5#
    • 1...Sd3
      • 2.Qxd3#
      • 2.Qd5#
    • 1...Sd5
      • 2.Qxd5#
    • 1...Sa6
      • 2.Qd3#
      • 2.Qd5#
    • 1...Sc6
      • 2.Qd3#
      • 2.Qd5#
    • 1...c3
      • 2.Qd5#
  • Tries
    • 1.Qf5+?
      • 1...Kd4
        • 2.Sc2#
      • 1...Rxf5!
  • Keys
    • 1.Sd1!
      • threat
        • 2.Sf2#
        • 2.Sc3#
      • 1...Rd6
        • 2.Qf5#
      • 1...Sa2
        • 2.Sf2#
        • 2.Qd3#
        • 2.Qd5#
      • 1...Sd3
        • 2.Sc3#
        • 2.Qxd3#
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...f2
        • 2.Re3#
      • 1...c3
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(a);OGATE,P_SPINP(b),XS(D)::R1(C),XS(a)
    • S(c);N_GUARD,P_SPINP(d)::QAB1(G),XS(c)
    • P(d);P_SPINS(c)::QAB1(G)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(e);P-FLIGHT::B(A)+S(D),DCHECK
      • Refutation
        • R(h);XQ(G)
  • Actual
    • S(D);
    • Threat
      • DUALS(2)
    • Vars
      • R(h);N_GUARD::QAB1(G)
      • S(c);N_GUARD,P_SPINP(d)::QAB1(G),XS(c)
      • P(b);P_SPINS(a)::R1(C)
      • P(d);P_SPINS(c)::QAB1(G)
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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).