MESON Chess Problem Database

Problem Display
PID: 266296 (2R1K3/1p2p3/2R1N2p/2Bkp2B/7Q/1P6/3n1N2/4r3 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Slesarenko, Anatoly Vasilevich

1st Prize, Kozhakin-55 JT (Kudesnik), 2011-2012

2R1K3/1p2p3/2R1N2p/2Bkp2B/7Q/1P6/3n1N2/4r3

#2

9 + 7

17266 FIDE Album (2010-2012) 2017
6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Qc4#
    • 1...Sf1
      • 2.Qc4#
    • 1...Sf3
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
      • 2.bxc4#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sb4#
      • 1...bxc6
        • 2.Sc7#
      • 1...e4
        • 2.Sef4#
      • 1...Re4!
    • 1.Qf6?
      • threat
        • 2.Sc7#
      • 1...bxc6
        • 2.Rd8#
      • 1...exf6
        • 2.Rd6#
      • 1...Sxb3!
    • 1.Qa4?
      • threat
        • 2.Sc7#
        • 2.Rd8#
      • 1...bxc6
        • 2.Qxc6#
      • 1...e4
        • 2.Qd4#
      • 1...Se4
        • 2.Sc7#
        • 2.Qc4#
      • 1...Sc4
        • 2.Sc7#
        • 2.Qxc4#
        • 2.bxc4#
      • 1...b5!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Sf4#
      • 1...bxc6
        • 2.Rd8#
      • 1...e4
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(b);N_GUARD::QAB1(C)
  • Tries
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • P(f);SBLOCK,XR(F)::S(G)
        • P(d);N_GUARD,SBLOCK::S(G)
      • Refutation
        • R(a);
    • Try
      • Q(C);
      • Threat
        • S(G)
      • Vars
        • P(f);SBLOCK,XR(F)::R(H)
        • P(g);N_GUARD,XQ(C)::R1(F)
      • Refutation
        • S(b);XP(B)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);OGATE,XR(F)::QAB1(C),XP(f)
        • P(d);N_GUARD::QAR1(C)
      • Refutation
        • P(f);
  • Actual
    • B(E);
    • Threat
      • B(E)+S(G),DCHECK
    • Vars
      • P(f);SBLOCK,XR(F)::R(H)
      • P(d);OGATEB::QAR(C)
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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).