MESON Chess Problem Database

Problem Display
PID: 268993 (6b1/1p1rN3/2B2ppr/2B1kP2/8/3nP1Kp/1N1p4/3Q4 w - - 0 1)

Juricek, Stanislav

Sachova skladba, 2022

6b1/1p1rN3/2B2ppr/2B1kP2/8/3nP1Kp/1N1p4/3Q4

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.exd4#
    • 1...Rc7
      • 2.Sxd3#
    • 1...Bc4
      • 2.Sxc4#
    • 1...Bh7
      • 2.Sc4#
    • 1...Sf4
      • 2.exf4#
  • Tries
    • 1.Sxg6+?
      • 1...Kxf5
        • 2.Qg4#
      • 1...Rxg6+!
    • 1.Qg4?
      • threat
        • 2.Qe4#
      • 1...Sxc5
        • 2.Qf4#
      • 1...gxf5
        • 2.Qxf5#
      • 1...Rh4
        • 2.Sxg6#
      • 1...Rd4
        • 2.Qxd4#
        • 2.exd4#
      • 1...Rd5
        • 2.Sc4#
      • 1...Bd5
        • 2.Sxd3#
        • 2.Qd4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
        • 2.exf4#
      • 1...bxc6!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qe4#
      • 1...Sxc5
        • 2.Qf4#
      • 1...gxf5
        • 2.Qxf5#
      • 1...bxc6
        • 2.Sxc6#
      • 1...Rh4
        • 2.Sxg6#
      • 1...Rd4
        • 2.exd4#
      • 1...Rd5
        • 2.Sc4#
      • 1...Bd5
        • 2.Sxd3#
      • 1...Sf2
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 4
  • Sets
    • R(i);OGATE::P(C),XR(i)
    • R(i);N_GUARD::S(B),XS(b)
    • B(j);N_GUARD::S(B),XB(j)
    • B(j);N_GUARD::S(B)
    • S(b);OGATE::P(C),XS(b)
  • Tries
    • Try
      • S(H);CHECK,XP(f)
      • Vars
        • K(d);P-FLIGHT,S_CUTR(g),XP(F)::QAB1(A)
      • Refutation
        • R(g);CHECK,XS(H)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • S(b);N_GUARD,XB(E)::QAB1(A)
        • P(f);OGATE,XP(F)::QAR1(A),XP(f)
        • R(g);N_GUARD::S(H),XP(f)
        • R(i);S_CUTB(j)::S(B)
        • S(b);N_GUARD::QAB1(A)
      • Refutation
        • P(h);XB(G)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • S(b);N_GUARD,XB(E)::QAB1(A)
      • P(f);OGATE,XP(F)::QAR1(A),XP(f)
      • P(h);XB(G)::S(H),XP(h)
      • R(g);N_GUARD::S(H),XP(f)
      • R(i);OGATE::P(C),XR(i)
      • R(i);S_CUTB(j)::S(B)
      • B(j);S_CUTR(i)::S(B),XS(b)
      • S(b);N_GUARD::QAB1(A)
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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).