MESON Chess Problem Database

Problem Display
PID: 203410 (8/1Bp1R3/3k4/4R3/4K3/8/8/8 w - - 0 1)

Oosterholt, Cornelis Johannes

Noord-Hollandsch Dagblad, 1924

8/1Bp1R3/3k4/4R3/4K3/8/8/8

#2

4 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.R5e6#
  • Tries
    • 1.Kd3?
      • 1...c5
        • 2.R5e6#
      • 1...c6!
    • 1.Ke3?
      • 1...c5
        • 2.R5e6#
      • 1...c6!
    • 1.Kf3?
      • 1...c5
        • 2.R5e6#
      • 1...c6!
    • 1.Kf4?
      • 1...c5
        • 2.R5e6#
      • 1...c6!
    • 1.Kf5?
      • 1...c5
        • 2.R5e6#
      • 1...c6!
    • 1.Ba8?
      • 1...c5
        • 2.R5e6#
      • 1...c6!
  • Keys
    • 1.Bc8!
      • threat
        • 2.R7e6#
      • 1...Kc6
        • 2.R7e6#
      • 1...c6
        • 2.Rd7#
      • 1...c5
        • 2.R5e6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::R1(B)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(b);SBLOCK::R1(B)
      • Refutation
        • P(b);
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);SBLOCK::R1(B)
      • Refutation
        • P(b);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(b);SBLOCK::R1(B)
      • Refutation
        • P(b);
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);SBLOCK::R1(B)
      • Refutation
        • P(b);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(b);SBLOCK::R1(B)
      • Refutation
        • P(b);
    • Try
      • B(C);
      • Vars
        • P(b);SBLOCK::R1(B)
      • Refutation
        • P(b);
  • Actual
    • B(C);
    • Threat
      • R1(D)
    • Vars
      • K(a);P-FLIGHT::R(D)
      • P(b);SBLOCK::R1(D)
      • P(b);SBLOCK::R1(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).