MESON Chess Problem Database

Problem Display
PID: 136188 (B6b/3rP2b/q1r5/1p1n2pQ/4k1P1/2p1pN1N/4P3/1R4K1 w - - 0 1)

Barbareau, A

Source?, 0000

B6b/3rP2b/q1r5/1p1n2pQ/4k1P1/2p1pN1N/4P3/1R4K1

#2

9 + 11

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Rb4#
    • 1...Bf6
      • 2.Qxh7#
  • Tries
    • 1.Sf2+?
      • 1...Kf4
        • 2.Qh2#
      • 1...exf2+!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Shxg5#
      • 1...Rf6
        • 2.Rb4#
      • 1...Rg6
        • 2.Qf5#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Bf6
        • 2.Qxh7#
      • 1...Sf6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(h);N_GUARD,P_SPINS(e),S_CUTB(k)::R(A)
    • B(k);S_CUTR(h)::QAB(G),XB(j)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB(G)
      • Refutation
        • P(b);CHECK,XS(E)
  • Actual
    • Q(G);
    • Threat
      • S(E),XP(f)
    • Vars
      • R(h);N_GUARD,P_SPINS(e),S_CUTB(k)::R(A)
      • R(h);P_SPINS(e),S_CUTB(j)::QAB1(G)
      • B(j);N_GUARD::QAB1(G),XB(j)
      • B(k);S_CUTR(h)::QAB(G),XB(j)
      • S(e);P_SPINR(h),S_CUTB(k)::QAR2(G)
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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).