MESON Chess Problem Database

Problem Display
PID: 184822 (5r2/2p5/8/3p4/3R1p1Q/pk1K1R2/rp1PP3/nBb5 w - - 0 1)

van Dijk, Johannes

De Maasbode, 1908

5r2/2p5/8/3p4/3R1p1Q/pk1K1R2/rp1PP3/nBb5

#2

7 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd2
      • 2.Kxd2#
    • 1...Sc2
      • 2.Bxc2#
  • Tries
    • 1.Qe7?
      • threat
        • 2.Rb4#
        • 2.Qb4#
      • 1...Bxd2
        • 2.Kxd2#
      • 1...Sc2
        • 2.Bxc2#
      • 1...c5
        • 2.Qb7#
      • 1...Rb8!
    • 1.Qd8?
      • threat
        • 2.Qxd5#
      • 1...Rf5
        • 2.Qb8#
      • 1...c5
        • 2.Qb6#
      • 1...c6
        • 2.Qb6#
      • 1...Rxd8!
  • Keys
    • 1.e4!
      • threat
        • 2.Ke2#
      • 1...dxe4+
        • 2.Kxe4#
      • 1...Bxd2
        • 2.Kxd2#
      • 1...fxe4 ep
        • 2.Rb4#
      • 1...Sc2
        • 2.Bxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(b);XP(B)::R(E)+K(D),XB(b)
    • S(a);N_GUARD::B(A),XS(a)
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XP(B)::R(E)+K(D),XB(b)
        • S(a);N_GUARD::B(A),XS(a)
        • P(i);OGATE::QAR(G)
      • Refutation
        • R(j);
    • Try
      • Q(G);
      • Threat
        • QAB(G),XP(h)
      • Vars
        • R(j);N_GUARD::QAR(G)
        • P(i);OGATE::QAR(G)
      • Refutation
        • R(j);XQ(G)
  • Actual
    • P(C);
    • Threat
      • R(E)+K(D)
    • Vars
      • P(h);CHECK,XP(C)::R(E)+K(D),XP(h)
      • B(b);XP(B)::R(E)+K(D),XB(b)
      • P(g);EP,XP(C)::R1(F)
      • S(a);N_GUARD::B(A),XS(a)
HTML5 logo

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).