MESON Chess Problem Database

Problem Display
PID: 264325 (2n1R3/p3rP2/p1K2B1p/1p1N4/3Nk2p/2pp4/Q1b3n1/b4R2 w - - 0 1)

Mlynka, Karol

Sp. Prize, Praca, 1996

2n1R3/p3rP2/p1K2B1p/1p1N4/3Nk2p/2pp4/Q1b3n1/b4R2

#2

8 + 13

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Re6+
      • 2.Rxe6#
    • 1...Bb1
      • 2.Qxg2#
    • 1...Bb3
      • 2.Qxg2#
    • 1...Ba4
      • 2.Qxg2#
    • 1...Se1
      • 2.Rxe1#
      • 2.Rf4#
    • 1...Se3
      • 2.Rf4#
    • 1...Sf4
      • 2.Rxf4#
    • 1...Sb6
      • 2.Rxe7#
    • 1...Sd6
      • 2.Rxe7#
    • 1...d2
      • 2.Qxc2#
  • Tries
    • 1.Sxb5?
      • threat
        • 2.Qc4#
      • 1...Re6+
        • 2.Rxe6#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Bb3
        • 2.Qxg2#
      • 1...Se3
        • 2.Rf4#
      • 1...Sb6
        • 2.Sd6#
        • 2.Rxe7#
      • 1...Sd6
        • 2.Sxd6#
        • 2.Rxe7#
      • 1...axb5!
    • 1.Se6?
      • threat
        • 2.Sc5#
      • 1...Rxe6+
        • 2.Rxe6#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Rc7+!
    • 1.Re1+?
      • 1...Se3
        • 2.Rxe3#
      • 1...Sxe1!
  • Keys
    • 1.Sb3!
      • threat
        • 2.Sc5#
      • 1...Re6+
        • 2.Rxe6#
      • 1...Bxb3
        • 2.Qxg2#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Re5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(l);CHECK,OGATE::R(H),XR(l)
    • B(b);OGATE::QAB(B),XS(c)
    • S(c);N_GUARD::R1(A)
    • S(c);N_GUARD::R1(A),XS(c)
    • S(m);N_GUARD::R(H),XR(l)
    • P(e);OGATEB::QAB(B),XB(b)
  • Tries
    • Try
      • S(C);XP(h)
      • Threat
        • QAR2(B)
      • Vars
        • R(l);CHECK,OGATE::R(H),XR(l)
        • S(c);N_GUARD::R1(A),XS(c)
        • B(b);OGATE::QAB(B),XS(c)
        • S(c);N_GUARD::R1(A)
      • Refutation
        • P(i);XS(C)
    • Try
      • S(C);N_PINR(l)
      • Threat
        • S(C)
      • Vars
        • R(l);CHECK,OGATE,P_SPINR(l),XS(C)::R(H),XR(l)
        • S(c);N_GUARD::R1(A),XS(c)
      • Refutation
        • R(l);CHECK
    • Try
      • R(A);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::R1(A),XS(c)
      • Refutation
        • S(c);XR(A)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • R(l);CHECK,OGATE::R(H),XR(l)
      • B(b);OGATE,XS(C)::QAB(B),XS(c)
      • S(c);N_GUARD::R1(A),XS(c)
      • R(l);OGATE::R1(H),XR(l)
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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).