MESON Chess Problem Database

Problem Display
PID: 191606 (B5N1/1pB5/R1b1k1P1/2p2rp1/N1Pn4/2n2Q2/8/3R3K w - - 0 1)

Coello Alonso, Jose Antonio

BCPS Website, 2019

B5N1/1pB5/R1b1k1P1/2p2rp1/N1Pn4/2n2Q2/8/3R3K

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Qf7#
    • 1...Rf6
      • 2.Sxc5#
    • 1...Rf7
      • 2.Sxc5#
    • 1...Rf8
      • 2.Sxc5#
    • 1...Sd5
      • 2.Sxc5#
  • Tries
    • 1.Qd5+?
      • 1...Sxd5
        • 2.Sxc5#
      • 1...Rxd5!
  • Keys
    • 1.Bxb7!
      • threat
        • 2.Bc8#
      • 1...Kd7
        • 2.Qxc6#
      • 1...Rd5
        • 2.Qf7#
      • 1...Rf7
        • 2.Sxc5#
      • 1...Rf8
        • 2.Sxc5#

This is a version of 191605

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(d);N_PINQ(C)::QAB1(C)
    • R(d);N_GUARD::S(D),XP(c)
    • S(a);N_PINQ(C),S_CUTR(d)::S(D),XP(c)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • S(a);XQ(C)::S(D),XP(c)
      • Refutation
        • R(d);XQ(C)
  • Actual
    • B(I);XP(h)
    • Threat
      • B(I)
    • Vars
      • K(g);N_SPINB(f),P_SPINS(b),S_FLIGHT::QAB1(C),XB(f)
      • R(d);N_PINQ(C)::QAB1(C)
      • R(d);N_GUARD::S(D),XP(c)
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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).