MESON Chess Problem Database

Problem Display
PID: 263272 (1KbR1R2/pQp1p1kp/r7/3N3P/2B2B2/8/8/4r3 w - - 0 1)

Banaszek, Marcin

Szachy, 1966

1KbR1R2/pQp1p1kp/r7/3N3P/2B2B2/8/8/4r3

#2

8 + 8

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6?
      • threat
        • 2.Rf7#
      • 1...Rxf6
        • 2.Rg8#
      • 1...Ree6
        • 2.Qg2#
      • 1...Rae6
        • 2.Qg2#
      • 1...e6
        • 2.Qg2#
      • 1...Be6!
    • 1.Sxe7?
      • threat
        • 2.Rf7#
      • 1...Ree6
        • 2.Sf5#
      • 1...Rae6
        • 2.Sf5#
      • 1...Rf6
        • 2.Rg8#
      • 1...Be6
        • 2.h6#
      • 1...Rxe7!
  • Keys
    • 1.Se3!
      • threat
        • 2.Rf7#
      • 1...Re6
        • 2.Sf5#
      • 1...Rf6
        • 2.Rg8#
      • 1...Be6
        • 2.Qb2#
      • 1...e6
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • R1(H)
      • Vars
        • R(b);SBLOCK,XS(C)::R1(H)
        • R(a);S_CUTB(h)::QAR(E)
        • R(b);S_CUTB(h)::QAR(E)
        • P(e);P_SPINP(d),S_CUTB(h)::QAR(E)
      • Refutation
        • B(h);
    • Try
      • S(C);XP(e)
      • Threat
        • R1(H)
      • Vars
        • R(a);S_CUTB(h)::S(C)
        • R(b);S_CUTB(h)::S(C)
        • R(b);SBLOCK::R1(H)
        • B(h);S_CUTR(b)::P(D)
      • Refutation
        • R(a);XS(C)
  • Actual
    • S(C);
    • Threat
      • R1(H)
    • Vars
      • R(b);S_CUTB(h)::S(C)
      • R(b);SBLOCK::R1(H)
      • B(h);S_CUTP(e),S_CUTR(b)::QAB(E)
      • P(e);P_SPINP(d),S_CUTB(h),S_CUTR(b)::QAR(E)
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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).