MESON Chess Problem Database

Problem Display
PID: 155202 (4R3/2NN1n1B/q1p3r1/4pnr1/Rbb1k1pQ/2P4p/3PP2B/4K3 w - - 0 1)

Drese, Gerardus Hendrikus

Match: Denmark - Netherlands, 1936

4R3/2NN1n1B/q1p3r1/4pnr1/Rbb1k1pQ/2P4p/3PP2B/4K3

#2

11 + 12

4035 Aarsskrift for DSK 1936

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Sxf6#
    • 1...Rg7
      • 2.Sf6#
    • 1...Rg8
      • 2.Sf6#
    • 1...Ba5
      • 2.Sc5#
    • 1...Bc5
      • 2.Sxc5#
    • 1...Ba2
      • 2.Sc5#
    • 1...Bb3
      • 2.Sc5#
    • 1...Bd3
      • 2.Sc5#
    • 1...Bb5
      • 2.Sc5#
    • 1...Bd5
      • 2.Sc5#
    • 1...Be6
      • 2.Sc5#
    • 1...Sd6
      • 2.Rxe5#
    • 1...Sh6
      • 2.Rxe5#
    • 1...Sd8
      • 2.Rxe5#
    • 1...Sh8
      • 2.Rxe5#
  • Tries
    • 1.d3+?
      • 1...Ke3
        • 2.Qf2#
      • 1...Bxd3!
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qf4#
      • 1...Bxe2
        • 2.Sc5#
      • 1...Re6
        • 2.Qe3#
      • 1...Be7
        • 2.d3#
      • 1...Be6
        • 2.Sc5#
      • 1...Sg3
        • 2.Sf6#
      • 1...Se7
        • 2.Sf6#
      • 1...g3
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 14
  • Sets
    • R(k);N_GUARD,P_SPINS(g)::S(I),XR(k)
    • R(k);N_GUARD,P_SPINS(g)::S(I)
    • B(b);N_GUARD,P_SPINB(c)::S(I)
    • B(b);N_GUARD,P_SPINB(c)::S(I),XB(b)
    • B(c);P_SPINB(b)::S(I)
    • S(l);N_GUARD::R1(K),XP(f)
  • Tries
    • Try
      • P(B);CHECK,P_SPINP(E)
      • Vars
        • K(d);N_SPINP(e),P-FLIGHT,P_SPINP(f)::QAB1(G)
      • Refutation
        • B(c);P_SPINB(b),XP(B)
  • Actual
    • Q(G);N_PINP(e),P_PINP(f)
    • Threat
      • QAR1(G)
    • Vars
      • B(c);P_SPINB(b),XP(C)::S(I)
      • R(k);N_SPINP(f),P_SPINS(g)::QAR1(G)
      • B(b);N_SPINP(f),P_SPINB(c)::P(B)
      • B(c);N_SPINP(f),P_SPINB(b)::S(I)
      • S(g);P_SPINR(k)::S(I)
      • S(g);N_SPINP(f),P_SPINR(k)::S(I)
      • P(e);N_GUARD::QAB1(G)
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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).