MESON Chess Problem Database

Problem Display
PID: 229897 (2B1nB2/3p4/1R1Pp2Q/Kppk1rR1/N5N1/2Pp1P2/8/8 w - - 0 1)

Pavlov, Mikhail Aleksandrovich

Zadachi i Etyudi, 2000

2B1nB2/3p4/1R1Pp2Q/Kppk1rR1/N5N1/2Pp1P2/8/8

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Se3#
    • 1...c4
      • 2.Bb7#
    • 1...e5
      • 2.Se3#
  • Tries
    • 1.Kxb5?
      • threat
        • 2.Bb7#
      • 1...Sxd6+
        • 2.Rxd6#
      • 1...Sc7+!
    • 1.Sb2?
      • threat
        • 2.Bb7#
      • 1...Sxd6
        • 2.Rxd6#
      • 1...c4!
    • 1.Qh2?
      • threat
        • 2.Se3#
      • 1...Kc4
        • 2.Qa2#
      • 1...e5!
  • Keys
    • 1.Rxb5!
      • threat
        • 2.Rxc5#
      • 1...Kc4
        • 2.Se3#
      • 1...Kc6
        • 2.Bb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(e);::S(D)
    • P(c);SBLOCK::B(J)
    • P(f);N_SPINR(e),SBLOCK::S(D)
  • Tries
    • Try
      • K(E);P-FLIGHT,XP(b)
      • Threat
        • B(J)
      • Vars
        • S(h);CHECK,OGATE,XP(H)::R1(G),XS(h)
      • Refutation
        • S(h);CHECK
    • Try
      • S(C);
      • Threat
        • B(J)
      • Vars
        • S(h);OGATE,XP(H)::R1(G),XS(h)
      • Refutation
        • P(c);
    • Try
      • Q(I);
      • Threat
        • S(D)
      • Vars
        • K(d);N_SPINR(e),S_FLIGHT::QAB(I)
      • Refutation
        • P(f);N_SPINR(e)
  • Actual
    • R(G);P_PINP(c),XP(b)
    • Threat
      • R1(G),XP(c)
    • Vars
      • K(d);N_SPINP(c),N_SPINR(e),S_FLIGHT::S(D)
      • K(d);N_SPINP(c),N_SPINR(e),S_FLIGHT::B(J)
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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).