MESON Chess Problem Database

Problem Display
PID: 165783 (rB6/8/2Bn1Pn1/R2P2RN/p2Nk2p/2Pp1p2/1p3P2/1Q2K3 w - - 0 1)

Handloser, Ralf Chris

Problemskak, 2017

rB6/8/2Bn1Pn1/R2P2RN/p2Nk2p/2Pp1p2/1p3P2/1Q2K3

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.d6#
    • 1...Sb5
      • 2.d6#
    • 1...Sf5
      • 2.d6#
    • 1...Sb7
      • 2.d6#
    • 1...Sf7
      • 2.d6#
    • 1...Sc8
      • 2.d6#
    • 1...Se8
      • 2.d6#
  • Tries
    • 1.Kf1?
      • threat
        • 2.Qe1#
      • 1...Sc4
        • 2.d6#
      • 1...Sf5
        • 2.d6#
      • 1...Sf4!
    • 1.Sb3?
      • threat
        • 2.Sd2#
        • 2.Sc5#
      • 1...Rxa5
        • 2.Sd2#
      • 1...Sc4
        • 2.Sc5#
        • 2.d6#
      • 1...Sb7
        • 2.Sd2#
        • 2.d6#
      • 1...axb3!
    • 1.Sb5?
      • threat
        • 2.Sxd6#
      • 1...Sxb5
        • 2.d6#
      • 1...Sc4
        • 2.d6#
      • 1...Sb7
        • 2.d6#
      • 1...Sf7
        • 2.d6#
      • 1...Sc8
        • 2.d6#
      • 1...Se8
        • 2.d6#
      • 1...Sf5!
    • 1.Sf5?
      • threat
        • 2.Sxd6#
      • 1...Ke5
        • 2.Sfg3#
        • 2.Sxd6#
      • 1...Sxf5
        • 2.d6#
      • 1...Sc4
        • 2.d6#
      • 1...Sb7
        • 2.d6#
      • 1...Sf7
        • 2.d6#
      • 1...Sc8
        • 2.d6#
      • 1...Se8
        • 2.d6#
      • 1...Sb5!
    • 1.Se6?
      • threat
        • 2.Sc5#
      • 1...Sb7
        • 2.d6#
      • 1...Rxa5!
    • 1.Sg3+?
      • 1...Kf4
        • 2.Se6#
      • 1...hxg3!
  • Keys
    • 1.Sxf3!
      • threat
        • 2.Sd2#
      • 1...Kxf3
        • 2.Qxd3#
      • 1...Sc4
        • 2.d6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • S(g);OGATE::B(J)+P(G)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAR(A)
      • Vars
        • S(g);OGATE::B(J)+P(G)
      • Refutation
        • S(h);
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);XR(F)::S(E)
      • Refutation
        • P(d);XS(E)
    • Try
      • S(E);
      • Threat
        • S(E),XS(g)
      • Vars
        • S(g);OGATE,XS(E)::B(J)+P(G)
        • S(g);OGATE::B(J)+P(G)
      • Refutation
        • S(g);
    • Try
      • S(E);
      • Threat
        • S(E),XS(g)
      • Vars
        • S(g);OGATE,XS(E)::B(J)+P(G)
        • S(g);OGATE::B(J)+P(G)
      • Refutation
        • S(g);
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • S(g);OGATE::B(J)+P(G)
      • Refutation
        • R(i);XR(F)
    • Try
      • S(I);CHECK
      • Vars
        • K(e);N_SPINP(b),P-FLIGHT,P_SPINS(g)::S(E)
      • Refutation
        • P(f);XS(I)
  • Actual
    • S(E);XP(c)
    • Threat
      • S(E)
    • Vars
      • K(e);N_SPINP(b),S_FLIGHT,XS(E)::QAR2(A),XP(b)
      • S(g);OGATE::B(J)+P(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).