MESON Chess Problem Database

Problem Display
PID: 179159 (2b5/b1N1p2B/1Q5K/r2R3p/3B1k2/5n2/3p2RN/5n2 w - - 0 1)

Dyachuk, Vasyl Vasilovich

4th Prize, Phenix, 2012-2013

2b5/b1N1p2B/1Q5K/r2R3p/3B1k2/5n2/3p2RN/5n2

#2

8 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5
      • 2.Sxd5#
    • 1...Ba6
      • 2.Se6#
    • 1...Be6
      • 2.Sxe6#
    • 1...Bb7
      • 2.Se6#
    • 1...S1xh2
      • 2.Be3#
    • 1...Se3
      • 2.Bxe3#
    • 1...Sg3
      • 2.Be3#
    • 1...Se1
      • 2.Be5#
    • 1...Sg1
      • 2.Be5#
    • 1...Sh4
      • 2.Be5#
    • 1...Se5
      • 2.Bxe5#
    • 1...Sg5
      • 2.Be5#
  • Tries
    • 1.Qf6+?
      • 1...Bf5
        • 2.Qxf5#
      • 1...exf6!
    • 1.Qg6?
      • threat
        • 2.Qe4#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Sg3
        • 2.Qxg3#
      • 1...Sg5
        • 2.Qxg5#
      • 1...Ra6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qe4#
      • 1...Bxe6
        • 2.Sxe6#
      • 1...Ra6
        • 2.Rf5#
      • 1...Sg3
        • 2.Qe3#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(e);XR(D)::S(G),XR(e)
    • B(i);N_GUARD::S(G)
    • B(i);N_GUARD::S(G),XB(i)
    • S(a);N_GUARD,XS(B)::B(C)
    • S(a);N_GUARD::B(C),XS(a)
    • S(a);N_GUARD::B(C)
    • S(c);N_GUARD::B(C)
    • S(c);N_GUARD::B(C),XS(c)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::QAR1(E),XB(i)
      • Refutation
        • P(h);XQ(E)
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • B(i);N_GUARD::QAR1(E),XB(i)
        • S(a);N_GUARD::QAB1(E),XS(a)
        • S(c);N_GUARD::QAB1(E),XS(c)
      • Refutation
        • R(e);P_PINQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E)
    • Vars
      • B(i);XQ(E)::S(G),XB(i)
      • R(e);N_GUARD,P_PINQ(E)::R1(D)
      • S(a);N_GUARD::QAB1(E)
      • S(c);N_GUARD::QAB1(E),XS(c)
      • S(c);N_GUARD::QAB1(E)
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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).