MESON Chess Problem Database

Problem Display
PID: 71559 (3r1B2/2p5/1p4q1/nQ2p1N1/K1Nk4/1B4n1/2PPrP2/4R2b w - - 0 1)

Ceder, Sven Ture

Eskilstuna Kuriren, 1944

3r1B2/2p5/1p4q1/nQ2p1N1/K1Nk4/1B4n1/2PPrP2/4R2b

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Se6#
    • 1...Rxd2
      • 2.Qxe5#
    • 1...Rxf2
      • 2.Qxe5#
    • 1...Re3
      • 2.fxe3#
    • 1...Be4
      • 2.Qxe5#
    • 1...Se4
      • 2.Qxe5#
    • 1...Sxc4
      • 2.Qxc4#
    • 1...e4
      • 2.Qe5#
  • Tries
    • 1.Sa3?
      • threat
        • 2.c3#
      • 1...Qxc2
        • 2.Sxc2#
      • 1...Qxg5
        • 2.Qd3#
      • 1...Rxd2
        • 2.Qxe5#
      • 1...Qd3
        • 2.Qxd3#
      • 1...Re3
        • 2.fxe3#
      • 1...Se4
        • 2.Qd3#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Qc6!
    • 1.Bc5+?
      • 1...Kd5
        • 2.Se3#
        • 2.Sxa5#
        • 2.Sxb6#
      • 1...bxc5!
  • Keys
    • 1.Sd6!
      • threat
        • 2.c3#
      • 1...Qxc2
        • 2.Se6#
      • 1...Rxd2
        • 2.Qxe5#
      • 1...Qd3
        • 2.Se6#
      • 1...Re3
        • 2.fxe3#
      • 1...Se4
        • 2.Qd5#
      • 1...Sc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(h);N_GUARD,SBLOCK::S(I)
    • R(b);N_GUARD,XP(C)::QAB1(H),XP(f)
    • R(b);N_GUARD,XP(D)::QAB1(H),XP(f)
    • R(b);OGATE::P(D),XR(b)
    • B(a);S_CUTR(b)::QAB1(H),XP(f)
    • S(c);S_CUTR(b)::QAB1(H),XP(f)
    • S(e);OGATE,XS(G)::QAR1(H),XS(e)
    • P(f);S_CUTR(b)::QAB1(H)
  • Tries
    • Try
      • S(G);
      • Threat
        • P(B)
      • Vars
        • Q(h);P_PINB(E),XP(B)::S(G),XQ(h)
        • Q(h);N_GUARD,XS(I)::QAR1(H)
        • R(b);N_GUARD,XP(C)::QAB1(H),XP(f)
        • Q(h);N_GUARD::QAR1(H),XQ(h)
        • R(b);OGATE::P(D),XR(b)
        • S(c);S_CUTQ(h)::QAR1(H)
        • S(e);N_GUARD::QAR1(H),XS(e)
      • Refutation
        • Q(h);P_PINQ(H)
    • Try
      • B(J);CHECK
      • Refutation
        • P(g);XB(J)
  • Actual
    • S(G);
    • Threat
      • P(B)
    • Vars
      • Q(h);N_GUARD,P_PINB(E),XP(B)::S(I)
      • R(b);N_GUARD,XP(C)::QAB1(H),XP(f)
      • Q(h);N_GUARD::S(I)
      • R(b);OGATE::P(D),XR(b)
      • S(c);S_CUTB(a)::QAR1(H)
      • S(e);N_GUARD::QAR1(H),XS(e)
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).