MESON Chess Problem Database

Problem Display
PID: 263140 (8/4p3/1R4K1/1NR1P1p1/r1p1k3/1Npp2B1/1b3P2/3B4 w - - 0 1)

Labai, Zoltan

2nd Comm., SuperProblem, 2021

8/4p3/1R4K1/1NR1P1p1/r1p1k3/1Npp2B1/1b3P2/3B4

#2

9 + 8

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sxc3#
    • 1...Ba3
      • 2.Sxc3#
    • 1...c2
      • 2.Sd2#
    • 1...e6
      • 2.Sd6#
  • Tries
    • 1.S3d4?
      • threat
        • 2.Bf3#
      • 1...d2
        • 2.Bc2#
      • 1...g4!
    • 1.Rd6?
      • threat
        • 2.Rd4#
      • 1...exd6
        • 2.Sxd6#
      • 1...Ra6
        • 2.Rxc4#
      • 1...c2
        • 2.Sd2#
      • 1...cxb3!
    • 1.e6?
      • threat
        • 2.Re5#
      • 1...c2
        • 2.Sd2#
      • 1...d2!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Bf3#
      • 1...exf6
        • 2.Sd6#
      • 1...d2
        • 2.Bc2#
      • 1...g4
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::S(E),XP(b)
    • P(b);N_GUARD::S(C)
    • P(h);N_GUARD::S(E)
  • Tries
    • Try
      • S(C);
      • Threat
        • B(A)
      • Vars
        • P(c);OGATEB::B(A)
      • Refutation
        • P(g);
    • Try
      • R(H);
      • Threat
        • R1(H)
      • Vars
        • P(h);XR(H)::S(E),XP(h)
        • R(d);N_GUARD,P_PINR(H)::R(F),XP(e)
        • P(b);N_GUARD::S(C)
      • Refutation
        • P(e);XS(C)
    • Try
      • P(G);
      • Threat
        • R1(F)
      • Vars
        • P(b);N_GUARD::S(C)
      • Refutation
        • P(c);
  • Actual
    • R(H);
    • Threat
      • B(A)
    • Vars
      • P(h);N_GUARD,XR(H)::S(E)
      • P(c);OGATEB::B(A)
      • P(g);N_GUARD::R1(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).