MESON Chess Problem Database

Problem Display
PID: 267720 (8/7B/2P4p/2Q5/p3PPn1/4nkNP/3PN3/6K1 w - - 0 1)

Samilo, Volodimir Grigorovich

Problemist Ukraini, 2022

8/7B/2P4p/2Q5/p3PPn1/4nkNP/3PN3/6K1

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Qxe3#
    • 1...Sh2
      • 2.Qxe3#
    • 1...Se5
      • 2.Qxe3#
    • 1...Sf6
      • 2.Qxe3#
  • Tries
    • 1.Sd4+?
      • 1...Kxf4
        • 2.Sge2#
        • 2.Sh5#
      • 1...Kxg3!
    • 1.Qa3?
      • 1...Sf2
        • 2.Qxe3#
      • 1...Sh2
        • 2.Qxe3#
      • 1...Se5
        • 2.Qxe3#
      • 1...Sf6
        • 2.Qxe3#
      • 1...h5!
    • 1.Qh5?
      • 1...Sd1
        • 2.Qxg4#
      • 1...Sf1
        • 2.Qxg4#
      • 1...Sc2
        • 2.Qxg4#
      • 1...Sg2
        • 2.Qxg4#
      • 1...Sc4
        • 2.Qxg4#
      • 1...Sd5
        • 2.Qxg4#
      • 1...Sf5
        • 2.Qxg4#
      • 1...a3!
  • Keys
    • 1.e5!
      • threat
        • 2.Be4#
      • 1...Sf5
        • 2.Qd5#
      • 1...Sf2
        • 2.Qxe3#
      • 1...Sf6
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • S(d);N_GUARD::QAR1(H),XS(a)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(b);P-FLIGHT,XS(D)
    • Try
      • Q(H);P_PINS(a)
      • Vars
        • S(d);N_GUARD::QAR1(H),XS(a)
      • Refutation
        • P(e);
    • Try
      • Q(H);P_PINS(d)
      • Vars
        • S(a);N_GUARD::QAB1(H),XS(d)
      • Refutation
        • P(c);
  • Actual
    • P(F);
    • Threat
      • B(J)
    • Vars
      • S(a);N_GUARD::QAB(H)
      • S(d);N_GUARD::QAR1(H),XS(a)
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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).