MESON Chess Problem Database

Problem Display
PID: 163144 (Q7/3p2N1/2r2b1R/1K1kpN2/4p1P1/B3p3/3n4/8 w - - 0 1)

Handloser, Ralf Chris

Best Problems, 2013

Q7/3p2N1/2r2b1R/1K1kpN2/4p1P1/B3p3/3n4/8

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Rd6#
    • 1...Bg5
      • 2.Rd6#
    • 1...Bxg7
      • 2.Rd6#
    • 1...Bd8
      • 2.Rd6#
    • 1...d6
      • 2.Qxc6#
      • 2.Qg8#
  • Tries
    • 1.Se8?
      • threat
        • 2.Sc7#
      • 1...Bd8
        • 2.Rd6#
      • 1...Ke6!
    • 1.Bc5?
      • threat
        • 2.Sxe3#
      • 1...Bg5
        • 2.Rd6#
      • 1...Sf1
        • 2.Qa2#
      • 1...e2
        • 2.Se3#
      • 1...Sc4!
    • 1.Rxf6?
      • threat
        • 2.Rd6#
      • 1...d6
        • 2.Rxd6#
        • 2.Qxc6#
        • 2.Qg8#
      • 1...Sc4!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc7#
      • 1...Kxe6
        • 2.Qg8#
      • 1...dxe6
        • 2.Qxc6#
      • 1...Bd8
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(g);OGATE::R1(E)
    • B(g);OGATE,XS(F)::R1(E)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • B(g);OGATE::R1(E)
      • Refutation
        • K(d);N_SPINR(f),P_SPINB(g),S_FLIGHT
    • Try
      • B(A);
      • Threat
        • S(D),XP(b)
      • Vars
        • B(g);OGATE::R1(E)
        • S(a);N_GUARD::QAB(G)
        • P(b);::S(D)
      • Refutation
        • S(a);
    • Try
      • R(E);XB(g)
      • Threat
        • R1(E)
      • Refutation
        • S(a);
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(d);N_SPINR(f),OGATEB,P_SPINB(g),S_FLIGHT,XS(F)::QAB(G)
      • P(h);N_GUARD,XS(F)::QAB1(G),XR(f)
      • B(g);::S(D),XP(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).