MESON Chess Problem Database

Problem Display
PID: 17172 (b7/6q1/4p1n1/1rP2R2/1pRPk1B1/3Np1P1/1p2rp2/1K1Qb3 w - - 0 1)

Schneider, Michael

Chemnitzer Tageblatt, 1925

b7/6q1/4p1n1/1rP2R2/1pRPk1B1/3Np1P1/1p2rp2/1K1Qb3

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qh6
      • 2.d5#
    • 1...Qf8
      • 2.d5#
    • 1...Qa7
      • 2.d5#
    • 1...Qb7
      • 2.d5#
    • 1...Qc7
      • 2.d5#
    • 1...Qd7
      • 2.d5#
    • 1...Qe7
      • 2.d5#
    • 1...Qf7
      • 2.d5#
    • 1...Qh7
      • 2.d5#
    • 1...Qg8
      • 2.d5#
    • 1...Rxc5
      • 2.Sxc5#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qd3#
      • 1...Rd2
        • 2.Qf3#
      • 1...Bd2
        • 2.Qc2#
        • 2.Qh1#
      • 1...Se5
        • 2.dxe5#
      • 1...Sxf4!
  • Keys
    • 1.Se5!
      • threat
        • 2.d5#
      • 1...Kd5
        • 2.Bf3#
      • 1...Qxe5
        • 2.dxe5#
      • 1...Rxc5
        • 2.dxc5#
      • 1...Sxe5
        • 2.dxe5#
      • 1...exf5
        • 2.Bf3#
      • 1...Rc2
        • 2.Qf3#
      • 1...Rd2
        • 2.Qf3#
      • 1...Bd2
        • 2.Qh1#
      • 1...Bc3
        • 2.Qh1#
      • 1...Bd5
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 10
  • Sets
    • Q(k);N_GUARD::R(E)+P(F)
    • R(h);XP(H)::S(C),XR(h)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(B)
      • Vars
        • R(c);OGATE::QAB1(B)
        • S(j);OGATE::R(E)+P(F),XS(j)
      • Refutation
        • S(j);XS(C)
  • Actual
    • S(C);
    • Threat
      • R(E)+P(F)
    • Vars
      • K(g);S_FLIGHT::B(G)
      • Q(k);OGATE,XS(C)::R(E)+P(F),XQ(k)
      • R(h);OGATE,XP(H)::R(E)+P(F),XR(h)
      • S(j);OGATE,XS(C)::R(E)+P(F),XS(j)
      • P(i);SBLOCK,XR(I)::B(G)
      • R(c);OGATE::QAB1(B)
      • B(a);OGATE::QAB(B)
      • B(l);SBLOCK::QAB1(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).