MESON Chess Problem Database

Problem Display
PID: 33252 (3R4/4pp1K/2Rq1k2/5B1p/2pP3P/2B1N3/8/8 w - - 0 1)

van der Ven, AMA

3rd Prize, Tijdschrift vd NSB, 1912

3R4/4pp1K/2Rq1k2/5B1p/2pP3P/2B1N3/8/8

#2

8 + 6

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.d5#
  • Keys
    • 1.Be6!
      • 1...Kxe6
        • 2.d5#
      • 1...Qxd4
        • 2.Bxd4#
      • 1...Qxc6
        • 2.d5#
      • 1...Qxe6
        • 2.d5#
      • 1...Qxd8
        • 2.d5#
      • 1...fxe6
        • 2.Rf8#
      • 1...Qh2
        • 2.Sd5#
      • 1...Qa3
        • 2.Sd5#
      • 1...Qg3
        • 2.Sd5#
      • 1...Qb4
        • 2.Sd5#
      • 1...Qf4
        • 2.Sd5#
      • 1...Qc5
        • 2.dxc5#
      • 1...Qe5
        • 2.dxe5#
      • 1...Qc7
        • 2.Sd5#
      • 1...Qb8
        • 2.Sd5#
      • 1...Qd5
        • 2.Sxd5#
      • 1...Qd7
        • 2.d5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • Q(c);S_CUTP(e)::B(A)+P(C)
  • Actual
    • B(E);N_PINQ(c)
    • Vars
      • K(d);P-FLIGHT,P_SPINQ(c),XB(E)::P(C)
      • Q(c);OGATE,P_SPINQ(c),XP(C)::B(A),XQ(c)
      • Q(c);N_GUARD,XR(F)::B(A)+P(C)
      • Q(c);N_GUARD,P_SPINQ(c),XB(E)::B(A)+P(C)
      • Q(c);N_GUARD,XR(H)::B(A)+P(C)
      • P(f);OGATEB,SBLOCK,XB(E)::R(H)
      • Q(c);N_GUARD::S(B)
      • Q(c);OGATE::B(A)+P(C),XQ(c)
      • Q(c);OGATE::P(C),XQ(c)
      • Q(c);N_GUARD::S(B),XQ(c)
      • Q(c);N_GUARD::B(A)+P(C)
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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).