MESON Chess Problem Database

Problem Display
PID: 264001 (6QK/1p1R1rp1/5p2/Rn2P3/2pPk2N/3pPp2/B4PN1/6B1 w - - 0 1)

Ebben, Jacobus Johannes

Tijdschrift vd KNSB, 1937

6QK/1p1R1rp1/5p2/Rn2P3/2pPk2N/3pPp2/B4PN1/6B1

#2

12 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.Qd5#
    • 1...Sxd4
      • 2.Rxd4#
    • 1...d2
      • 2.Bb1#
    • 1...fxg2
      • 2.f3#
    • 1...c3
      • 2.Bd5#
    • 1...b6
      • 2.Qa8#
  • Keys
    • 1.exf6!
      • 1...Rxf6
        • 2.Qd5#
      • 1...Rxd7
        • 2.Qe6#
      • 1...Sxd4
        • 2.Rxd4#
      • 1...fxg2
        • 2.f3#
      • 1...gxf6
        • 2.Qg4#
      • 1...d2
        • 2.Bb1#
      • 1...Sc3
        • 2.Re5#
      • 1...Re7
        • 2.Rxe7#
        • 2.Qd5#
      • 1...Rf8
        • 2.Re7#
      • 1...Sa3
        • 2.Re5#
      • 1...Sd6
        • 2.Re5#
      • 1...Sa7
        • 2.Re5#
      • 1...Sc7
        • 2.Re5#
      • 1...c3
        • 2.Bd5#
      • 1...b6
        • 2.Qa8#
      • 1...g5
        • 2.Qg6#
      • 1...g6
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 1
  • Sets
    • R(h);OGATE::QAB1(K)
    • S(e);OGATE,XP(F)::R1(J),XS(e)
    • P(a);OGATEB::B(B)
    • P(b);OGATE,XS(D)::P(C)
    • P(c);OGATE::B(B)
    • P(g);OGATEB::QAB(K)
  • Actual
    • P(I);XP(f)
    • Vars
      • R(h);OGATE,XP(I)::QAB1(K)
      • R(h);OGATE,XR(J)::QAR2(K)
      • S(e);OGATE,XP(F)::R1(J),XS(e)
      • P(b);OGATE,XS(D)::P(C)
      • P(i);OGATE,XP(I)::QAR2(K)
      • P(a);OGATEB::B(B)
      • S(e);OGATE::R1(H)
      • R(h);N_GUARD,P_PINQ(K)::R(J)
      • P(c);OGATE::B(B)
      • P(g);OGATEB::QAB(K)
      • P(i);OGATE::QAB(K)
      • P(i);OGATE::QAB(K),XP(i)
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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).