MESON Chess Problem Database

Problem Display
PID: 187684 (n2Q2b1/r1P1p1r1/PbpB2p1/1ppk4/5R2/n1P4B/K3P2P/8 w - - 0 1)

van Dijk, Johannes

De Maasbode, 1909

n2Q2b1/r1P1p1r1/PbpB2p1/1ppk4/5R2/n1P4B/K3P2P/8

#2

10 + 12

1836 Algemeen Handelsblad 1914
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc7
      • 2.Bxc7#
    • 1...Bxc7
      • 2.Bxc7#
    • 1...Be6
      • 2.Bg2#
    • 1...Sc4
      • 2.e4#
    • 1...Sxc7
      • 2.Bxc7#
    • 1...c4
      • 2.e4#
    • 1...exd6
      • 2.Qg5#
    • 1...e5
      • 2.Be7#
    • 1...e6
      • 2.Bg2#
  • Tries
    • 1.Kb3?
      • threat
        • 2.e4#
      • 1...exd6
        • 2.Qg5#
      • 1...c4+!
    • 1.Qxe7?
      • threat
        • 2.Bg2#
        • 2.Qe5#
      • 1...Be6
        • 2.Bg2#
        • 2.Bxe6#
        • 2.Qxe6#
      • 1...Sc4
        • 2.Bg2#
        • 2.e4#
      • 1...Rxe7!
    • 1.Qd7?
      • threat
        • 2.Bg2#
      • 1...e5
        • 2.Be7#
      • 1...exd6!
  • Keys
    • 1.Rh4!
      • threat
        • 2.Bg3#
      • 1...Rxc7
        • 2.Bxc7#
      • 1...Bxc7
        • 2.Bxc7#
      • 1...exd6
        • 2.Qg5#
      • 1...Be6
        • 2.Bg2#
      • 1...Sc4
        • 2.e4#
      • 1...c4
        • 2.e4#
      • 1...e5
        • 2.Be7#
      • 1...e6
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(h);OGATE,XP(I)::QAR(J)+B(H),XR(h)
    • B(e);OGATE,XP(I)::QAR(J)+B(H),XB(e)
    • B(l);SBLOCK::B(E)
    • S(a);P_PINP(G),SBLOCK::P(B)
    • S(k);OGATE,XP(I)::QAR(J)+B(H),XS(k)
    • P(c);SBLOCK::P(B)
    • P(i);OGATE,P_SPINP(i),SBLOCK,XB(H)::QAR(J)
    • P(i);SBLOCK::QAR(J)+B(H)
    • P(i);SBLOCK::B(E)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • P(B)
      • Vars
        • P(i);OGATE,P_SPINP(i),SBLOCK,XB(H)::QAR(J)
      • Refutation
        • P(c);CHECK
    • Try
      • Q(J);XP(i)
      • Threat
        • DUALS(2)
      • Refutation
        • R(j);XQ(J)
    • Try
      • Q(J);
      • Threat
        • B(E)
      • Vars
        • P(i);SBLOCK::QAR(J)+B(H)
      • Refutation
        • P(i);P_SPINP(i),XB(H)
  • Actual
    • R(F);
    • Threat
      • QAR(J)+B(H)
    • Vars
      • R(h);OGATE,XP(I)::QAR(J)+B(H),XR(h)
      • B(e);OGATE,XP(I)::QAR(J)+B(H),XB(e)
      • P(i);OGATE,P_SPINP(i),SBLOCK,XB(H)::QAR(J)
      • B(l);SBLOCK::B(E)
      • S(a);P_PINP(G),SBLOCK::P(B)
      • P(c);SBLOCK::P(B)
      • P(i);SBLOCK::QAR(J)+B(H)
      • P(i);SBLOCK::B(E)
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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).