MESON Chess Problem Database

Problem Display
PID: 149515 (1b6/1B2nb2/1prpNQ2/8/3PkN2/1Kp1P3/2P3Pn/4R3 w - - 0 1)

Janevski, Zivko

Troll, 2012

1b6/1B2nb2/1prpNQ2/8/3PkN2/1Kp1P3/2P3Pn/4R3

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bh5
      • 2.Sg5#
    • 1...Bxe6+
      • 2.Qxe6#
    • 1...Bg6
      • 2.Sg5#
    • 1...Be8
      • 2.Sg5#
    • 1...Sd5
      • 2.Sg5#
    • 1...d5
      • 2.Sg5#
  • Tries
    • 1.Ka3?
      • threat
        • 2.Sg5#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Sf3!
    • 1.Se2?
      • threat
        • 2.Sxc3#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...Kxe3
        • 2.Qf4#
      • 1...Kd5
        • 2.Sxc3#
      • 1...Sd5
        • 2.Sg3#
      • 1...d5!
    • 1.Ba6?
      • threat
        • 2.Bd3#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...Rc4
        • 2.Sg5#
      • 1...b5!
    • 1.Bxc6+?
      • 1...Sd5
        • 2.Sg5#
        • 2.Bxd5#
      • 1...d5
        • 2.Sg5#
      • 1...Sxc6!
    • 1.d5?
      • threat
        • 2.Sg5#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Sf3!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sxc3#
      • 1...Kxd5
        • 2.e4#
      • 1...Bxe6
        • 2.Qxe6#
      • 1...Sxd5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(h);N_PINS(H)::S(H)
    • B(h);CHECK,OGATE,XS(H)::QAR2(I),XB(h)
    • S(g);N_PINS(H),N_SPINR(e)::S(H)
    • P(f);N_PINS(H),N_SPINR(e)::S(H)
  • Tries
    • Try
      • K(D);N_SPINS(H),P-FLIGHT
      • Threat
        • S(H)
      • Vars
        • B(h);OGATE,XS(H)::QAR2(I),XB(h)
      • Refutation
        • S(a);
    • Try
      • S(G);
      • Threat
        • S(G),XP(b)
      • Vars
        • B(h);CHECK,OGATE,XS(H)::QAR2(I),XB(h)
        • K(c);N_SPINR(e),P-FLIGHT,XP(E)::QAB1(I)
        • K(c);N_PINS(H),S_FLIGHT::S(G),XP(b)
        • S(g);N_PINS(H),N_SPINR(e),SBLOCK::S(G)
      • Refutation
        • P(f);N_PINS(H),N_SPINR(e)
    • Try
      • B(J);N_PINR(e)
      • Threat
        • B(J)
      • Vars
        • B(h);CHECK,OGATE,XS(H)::QAR2(I),XB(h)
        • R(e);N_PINS(H)::S(H)
      • Refutation
        • P(d);
    • Try
      • B(J);CHECK,XR(e)
      • Vars
        • P(f);N_PINS(H),P_SPINP(f)::S(H)
      • Refutation
        • S(g);XB(J)
    • Try
      • P(F);N_PINR(e),N_SPINS(H)
      • Threat
        • S(H)
      • Vars
        • B(h);OGATE,P_PINP(F),XS(H)::QAR2(I),XB(h)
      • Refutation
        • S(a);
  • Actual
    • S(G);N_PINR(e),N_SPINS(H)
    • Threat
      • S(G),XP(b)
    • Vars
      • K(c);OGATE,P_SPINR(e),S_FLIGHT,XS(G)::P(E)
      • B(h);OGATE,P_PINS(G),XS(H)::QAR2(I),XB(h)
      • S(g);SBLOCK,XS(G)::S(H)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).