MESON Chess Problem Database

Problem Display
PID: 99375 (1b3r2/5B2/K2R4/8/7B/3Q4/5Pk1/5Nrb w - - 0 1)

Rusz, Arpad

Sakkelet, 1999

1b3r2/5B2/K2R4/8/7B/3Q4/5Pk1/5Nrb

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf1
      • 2.Qg3#
    • 1...Rc8
      • 2.Bd5#
    • 1...Rd8
      • 2.Bd5#
    • 1...Rg8
      • 2.Bd5#
    • 1...Rh8
      • 2.Bd5#
    • 1...Ba7
      • 2.Rg6#
  • Tries
    • 1.Qe4+?
      • 1...Kxf1
        • 2.Bc4#
        • 2.Rd1#
      • 1...Kh3!
    • 1.Qf3+?
      • 1...Kxf1
        • 2.Rd1#
      • 1...Kxf3!
  • Keys
    • 1.f4!
      • threat
        • 2.Bd5#
        • 2.Rg6#
      • 1...Rxf1
        • 2.Qg3#
      • 1...Rxf7
        • 2.Rg6#
      • 1...Bxd6
        • 2.Bd5#
      • 1...Re8
        • 2.Rg6#
      • 1...Rg8
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(a);SBLOCK,XS(A)::QAR1(C)
    • R(e);N_GUARD::B(G)
    • B(d);N_GUARD::R(F)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(A)::R(F)
      • Refutation
        • K(c);S_FLIGHT,XQ(C)
  • Actual
    • P(B);
    • Threat
      • DUALS(2)
    • Vars
      • R(a);SBLOCK,XS(A)::QAR1(C)
      • R(e);XB(G)::R(F)
      • B(d);XR(F)::B(G)
      • R(e);::R(F)
      • R(e);::B(G)
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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).