MESON Chess Problem Database

Problem Display
PID: 168324 (8/3N2n1/p2N4/2R5/1p1kB1pp/B1nb1p2/2R1pP2/4K1Q1 w - - 0 1)

Petite, Efren

Hlas l'udu, 1991

8/3N2n1/p2N4/2R5/1p1kB1pp/B1nb1p2/2R1pP2/4K1Q1

#2

9 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc2
      • 2.Rc4#
    • 1...Bc4
      • 2.Rxc4#
    • 1...Sb1
      • 2.Rd5#
    • 1...Sd1
      • 2.Rd5#
    • 1...Sa2
      • 2.Rd5#
    • 1...Sa4
      • 2.Rd5#
    • 1...Sb5
      • 2.Rd5#
    • 1...Sd5
      • 2.Rxd5#
  • Tries
    • 1.Sf5+?
      • 1...Kxe4
        • 2.Qxg4#
      • 1...Sxf5!
    • 1.Bb2?
      • threat
        • 2.Rd5#
      • 1...Bc4
        • 2.Rxc4#
      • 1...Bxe4!
  • Keys
    • 1.Qxg4!
      • threat
        • 2.Qxg7#
      • 1...Bxe4
        • 2.Rd2#
      • 1...Sxe4
        • 2.Bb2#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Sf5
        • 2.Sxf5#
      • 1...Sh5
        • 2.Sf5#
      • 1...Se6
        • 2.Sf5#
      • 1...Se8
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 7
  • Sets
    • B(c);N_GUARD,XR(C)::R1(G)
    • B(c);N_GUARD::R1(G),XB(c)
    • S(b);N_GUARD::R1(G)
    • S(b);N_GUARD::R1(G),XS(b)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(f);P-FLIGHT,XB(F)::QAR2(B),XP(g)
      • Refutation
        • S(j);XS(H)
    • Try
      • B(E);P_PINS(b)
      • Threat
        • R1(G)
      • Vars
        • B(c);N_GUARD::R1(G),XB(c)
      • Refutation
        • B(c);XB(F)
  • Actual
    • Q(B);XP(g)
    • Threat
      • QAB(B),XS(j)
    • Vars
      • B(c);OGATEB,P_SPINB(c),XB(F)::R(C)
      • S(b);OGATEB,P_SPINS(b),XB(F)::B(E)
      • S(b);N_GUARD::R1(G),XS(b)
      • S(j);N_GUARD::S(H),XS(j)
      • S(j);N_GUARD::S(H)
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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).