MESON Chess Problem Database

Problem Display
PID: 179168 (4B2n/7N/5Bp1/N2k2PR/1P1rn1QK/6p1/2rpR3/6b1 w - - 0 1)

Bedoni, Romeo

Phenix, 2014

4B2n/7N/5Bp1/N2k2PR/1P1rn1QK/6p1/2rpR3/6b1

#2

10 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qd7#
    • 1...Sf2
      • 2.Qxd4#
    • 1...Sd6
      • 2.Re5#
  • Tries
    • 1.Bc6+?
      • 1...Kd6
        • 2.Qd7#
      • 1...Rxc6!
    • 1.Qf5+?
      • 1...Kd6
        • 2.Qd7#
        • 2.Qe5#
      • 1...gxf5!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qe5#
      • 1...Ke6
        • 2.Qe5#
      • 1...Sxg5
        • 2.Rxg5#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...Sf2
        • 2.Qxd4#
      • 1...Sc3
        • 2.Bc6#
      • 1...Sc5
        • 2.Bc6#
      • 1...Sd6
        • 2.Re5#
      • 1...Sf7
        • 2.Bxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • K(g);P-FLIGHT::QAR1(C)
    • S(f);OGATE,P_PINQ(C)::QAR1(C),XR(e)
    • S(f);OGATE,P_PINQ(C),SBLOCK::R1(A)
  • Tries
    • Try
      • B(J);CHECK
      • Vars
        • K(g);P-FLIGHT::QAR1(C)
      • Refutation
        • R(b);XB(J)
    • Try
      • Q(C);CHECK
      • Refutation
        • P(h);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • K(g);P_SPINS(f),S_FLIGHT::QAR1(C)
      • S(f);OGATE,P_PINQ(C),P_SPINS(f),XP(F)::R(G),XS(f)
      • S(f);P_PINQ(C),XB(H)::S(I),XS(f)
      • S(f);OGATE,P_PINQ(C)::QAR1(C),XR(e)
      • S(f);P_PINQ(C),S_CUTR(b)::B(J)
      • S(f);OGATE,P_PINQ(C),SBLOCK::R1(A)
      • S(i);N_GUARD::B(J),XS(i)
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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).