MESON Chess Problem Database

Problem Display
PID: 182734 (q7/1p4p1/4B3/p2Pp3/R3Nk2/B4N2/3K2Pp/7n w - - 0 1)

Pletenev, Nikolai Alexeyevich

Rychkov, Vladimir Nikolaevich

Boletim da UBP, 1990

q7/1p4p1/4B3/p2Pp3/R3Nk2/B4N2/3K2Pp/7n

#2

8 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Se1?
      • threat
        • 2.Sd3#
      • 1...Sf2
        • 2.g3#
      • 1...Qa6!
    • 1.Sh4?
      • threat
        • 2.Sg6#
      • 1...g6
        • 2.Sxg6#
      • 1...Qe8!
    • 1.Sfg5?
      • threat
        • 2.Sh3#
      • 1...Sf2
        • 2.g3#
      • 1...Qh8!
    • 1.Sf2+?
      • 1...e4
        • 2.Bd6#
      • 1...Kg3!
    • 1.Sc3+?
      • 1...e4
        • 2.Se2#
        • 2.Bd6#
      • 1...Kg3!
    • 1.Sg3+?
      • 1...e4
        • 2.Se2#
        • 2.Sh5#
        • 2.Bd6#
      • 1...Kxg3!
    • 1.Seg5+?
      • 1...e4
        • 2.Bd6#
      • 1...Kg3!
    • 1.Sf6+?
      • 1...e4
        • 2.Sh5#
        • 2.Bd6#
      • 1...Kg3!
    • 1.Be7?
      • threat
        • 2.Bg5#
      • 1...g5
        • 2.Bxg5#
      • 1...Qd8!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Sd3#
        • 2.Sg6#
      • 1...Kxe5
        • 2.Bd6#
      • 1...Qa6
        • 2.Sg6#
      • 1...Qe8
        • 2.Sd3#
      • 1...Sf2
        • 2.Sg6#
      • 1...g6
        • 2.Sd3#
        • 2.Sxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • S(a);N_GUARD::P(B)
      • Refutation
        • Q(h);
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • P(g);::S(D),XP(g)
      • Refutation
        • Q(h);
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • S(a);N_GUARD::P(B)
      • Refutation
        • Q(h);
    • Try
      • S(F);CHECK
      • Vars
        • P(e);P_SPINP(e)::B(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • K(c);S_FLIGHT,XS(F)
    • Try
      • S(F);CHECK
      • Vars
        • P(e);P_SPINP(e)::B(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(C);
      • Threat
        • B(C)
      • Vars
        • P(g);::B(C),XP(g)
      • Refutation
        • Q(h);P_PINP(G)
  • Actual
    • S(D);XP(e)
    • Threat
      • DUALS(2)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::B(C)
      • Q(h);::S(D)
      • S(a);::S(D)
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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).