MESON Chess Problem Database

Problem Display
PID: 146541 (3bb1R1/Bn6/K1P3q1/n1rBp3/7p/1p3P1p/1p1Q3P/1R3Nkr w - - 0 1)

Handloser, Ralf Chris

Probleemblad, 2012

3bb1R1/Bn6/K1P3q1/n1rBp3/7p/1p3P1p/1p1Q3P/1R3Nkr

#2

10 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Qe3#
    • 1...Qg3
      • 2.Sxg3#
    • 1...Qg4
      • 2.Sg3#
      • 2.Rxg4#
    • 1...Qg5
      • 2.Sg3#
    • 1...Qg7
      • 2.Sg3#
    • 1...Qxg8
      • 2.Sg3#
    • 1...Rxh2
      • 2.Sxh2#
      • 2.Qxh2#
    • 1...Sc4
      • 2.Se3#
    • 1...Sd6
      • 2.Bxc5#
    • 1...e4
      • 2.Sg3#
  • Tries
    • 1.Bc4?
      • threat
        • 2.Se3#
      • 1...Qg2
        • 2.Qe3#
      • 1...Bg5!
    • 1.Be4?
      • threat
        • 2.Sg3#
      • 1...Qg2
        • 2.Qe3#
      • 1...Qg3
        • 2.Sxg3#
      • 1...Bb6!
    • 1.Rxb2?
      • threat
        • 2.Qf2#
      • 1...Kxf1
        • 2.Qd1#
        • 2.Qf2#
      • 1...Rxh2!
    • 1.Rxg6+?
      • 1...Bg5
        • 2.Sg3#
        • 2.Rxg5#
      • 1...Bxg6!
  • Keys
    • 1.f4!
      • threat
        • 2.Qe3#
      • 1...Rxh2
        • 2.Sxh2#
        • 2.Qxh2#
      • 1...exf4
        • 2.Qd4#
      • 1...Sc4
        • 2.Se3#
      • 1...e4
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(j);N_PINP(H)::QAB(C)
    • Q(j);N_GUARD,N_PINP(H)::R(A)+S(B),XQ(j)
    • Q(j);N_GUARD,N_PINP(H)::R(A)+S(B)
    • Q(j);N_GUARD,N_PINP(H),N_SPINQ(j),XR(J)::R(A)+S(B)
    • S(g);::R(A)+S(B)
    • S(k);N_GUARD,N_PINP(H)::B(I),XR(h)
    • P(i);::R(A)+S(B)
  • Tries
    • Try
      • B(F);
      • Threat
        • R(A)+S(B)
      • Vars
        • Q(j);N_PINP(H)::QAB(C)
      • Refutation
        • B(l);N_SPINQ(j)
    • Try
      • B(F);
      • Threat
        • R(A)+S(B)
      • Vars
        • Q(j);N_PINP(H)::QAB(C)
        • Q(j);N_PINP(H)::R(A)+S(B),XQ(j)
      • Refutation
        • B(l);N_PINP(H),N_SPINR(h)
    • Try
      • R(A);XP(c)
      • Threat
        • QAB1(C)
      • Refutation
        • R(b);XP(D)
    • Try
      • R(J);CHECK,N_SPINP(H),XQ(j)
      • Refutation
        • B(m);XR(J)
  • Actual
    • P(E);
    • Threat
      • QAB(C)
    • Vars
      • P(i);N_GUARD,XP(E)::QAB(C)
      • S(g);::R(A)+S(B)
      • P(i);::R(A)+S(B)
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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).