MESON Chess Problem Database

Problem Display
PID: 263052 (8/2p5/B1k5/6n1/n1pQ4/2pbR3/8/K2R2B1 w - - 0 1)

Gorbatenko, Yuri Grigorevich

1st Prize, SuperProblem, 2018

8/2p5/B1k5/6n1/n1pQ4/2pbR3/8/K2R2B1

#2

6 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Re6#
    • 1...Sh3
      • 2.Re6#
    • 1...Se6
      • 2.Rxe6#
    • 1...Sh7
      • 2.Re6#
  • Tries
    • 1.Rexd3?
      • threat
        • 2.Qd5#
        • 2.Qd7#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...cxd3!
    • 1.Re5?
      • threat
        • 2.Qd5#
      • 1...Be4
        • 2.Qd7#
      • 1...Sb6
        • 2.Rc5#
      • 1...Sc5!
    • 1.Qd5+?
      • 1...Kb6
        • 2.Re6#
      • 1...Kxd5!
  • Keys
    • 1.Re7!
      • threat
        • 2.Qd7#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Bf5
        • 2.Qd5#
      • 1...Sb6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • S(e);N_GUARD::R(D)
    • S(e);N_GUARD::R(D),XS(e)
  • Tries
    • Try
      • R(D);XB(b)
      • Threat
        • DUALS(2)
      • Vars
        • S(c);N_GUARD::QAR1(E),XS(c)
        • S(c);N_GUARD::QAR1(E)
      • Refutation
        • P(d);XR(D)
    • Try
      • R(D);
      • Threat
        • QAB1(E)
      • Vars
        • B(b);::QAB1(E)
        • S(c);N_GUARD,SBLOCK::R1(D)
      • Refutation
        • S(c);
    • Try
      • Q(E);CHECK
      • Vars
        • K(f);N_GUARD,P-FLIGHT::B(C)+R(D),DCHECK
      • Refutation
        • K(f);P_SPINB(b),S_FLIGHT,XQ(E)
  • Actual
    • R(D);
    • Threat
      • QAB1(E)
    • Vars
      • S(c);N_GUARD::QAR1(E),XS(c)
      • B(b);::QAB1(E)
      • S(c);N_GUARD::QAR1(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).