MESON Chess Problem Database

Problem Display
PID: 204481 (1N6/5pq1/3Bkp2/2R5/2Kp2r1/7B/1R2N2Q/b4b2 w - - 0 1)

ten Cate, Pieter

Svenska Dagbladet, 1925

1N6/5pq1/3Bkp2/2R5/2Kp2r1/7B/1R2N2Q/b4b2

#2

8 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2+
      • 2.Rxe2#
    • 1...Bg2
      • 2.Sxd4#
    • 1...d3+
      • 2.Sd4#
  • Tries
    • 1.Bf8?
      • threat
        • 2.Rb6#
        • 2.Qd6#
      • 1...Bxe2+
        • 2.Rxe2#
        • 2.Qxe2#
      • 1...d3+
        • 2.Sd4#
        • 2.Sf4#
      • 1...Bxb2
        • 2.Qd6#
      • 1...Bg2
        • 2.Sxd4#
        • 2.Sf4#
        • 2.Qd6#
      • 1...Qxf8!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Bf8#
      • 1...Bxe2+
        • 2.Qxe2#
      • 1...d3+
        • 2.Sf4#
      • 1...Qf8
        • 2.Bxf8#
      • 1...Bg2
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);CHECK,OGATE,XS(B)::R(A),XB(b)
    • B(b);N_PINS(B)::S(B),XP(c)
    • P(c);CHECK,N_PINS(B)::S(B)
  • Tries
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XR(A)::QAR1(C)
      • Refutation
        • Q(h);XB(G)
  • Actual
    • R(A);
    • Threat
      • R(A)+B(G)
    • Vars
      • B(b);CHECK,OGATE,XS(B)::QAR(C),XB(b)
      • P(c);CHECK,N_PINS(B)::S(B)
      • Q(h);::R(A)+B(G),XQ(h)
      • B(b);N_PINS(B)::S(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).