MESON Chess Problem Database

Problem Display
PID: 99017 (2b5/1P6/pN1Pp1K1/2P1k1P1/r6R/r3B3/2nn1N2/8 w - - 0 1)

Bakcsi, Gyorgy

Magyar Sakkelet, 1984

2b5/1P6/pN1Pp1K1/2P1k1P1/r6R/r3B3/2nn1N2/8

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sd3#
    • 1...Ra2
      • 2.Sd3#
    • 1...Rd3
      • 2.Sxd3#
    • 1...Sb4
      • 2.Bd4#
    • 1...Sd4
      • 2.Bf4#
    • 1...Sb3
      • 2.Sd3#
    • 1...Sc4
      • 2.Re4#
    • 1...Se4
      • 2.Sg4#
  • Tries
    • 1.Re4+?
      • 1...Sxe4
        • 2.Sg4#
      • 1...Rxe4!
    • 1.b8Q?
      • threat
        • 2.d7#
      • 1...Rd3
        • 2.Sxd3#
      • 1...Bd7
        • 2.Qh8#
      • 1...Sc4
        • 2.Re4#
      • 1...Se4
        • 2.Sg4#
      • 1...Rd4!
  • Keys
    • 1.b8S!
      • threat
        • 2.Sc6#
      • 1...Bb7
        • 2.S8d7#
      • 1...Bd7
        • 2.S8xd7#
      • 1...Sb4
        • 2.Bd4#
      • 1...Sd4
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(c);N_GUARD::S(A)
    • R(c);N_GUARD::S(A),XR(c)
    • S(a);N_GUARD,S_CUTR(d)::B(B)
    • S(a);SBLOCK,S_CUTR(d)::B(B)
    • S(b);S_CUTR(c)::S(A)
    • S(b);N_GUARD,S_CUTR(d)::R1(C)
    • S(b);SBLOCK,S_CUTR(d)::S(A)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • S(b);SBLOCK,XR(C)::S(A)
      • Refutation
        • R(d);XR(C)
    • Try
      • P(I);
      • Threat
        • QAB(I)+P(G)
      • Vars
        • R(c);N_GUARD::S(A),XR(c)
        • B(h);OGATE::QAB(I)
        • S(b);N_GUARD,S_CUTR(d)::R1(C)
        • S(b);SBLOCK,S_CUTR(d)::S(A)
      • Refutation
        • R(d);
  • Actual
    • P(I);
    • Threat
      • S(I)
    • Vars
      • B(h);N_GUARD::S(I)
      • B(h);N_GUARD::S(I),XB(h)
      • S(a);N_GUARD,S_CUTR(d)::B(B)
      • S(a);SBLOCK,S_CUTR(d)::B(B)
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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).