MESON Chess Problem Database

Problem Display
PID: 197862 (n6K/8/7N/2N1k1p1/7p/6nB/3Qp2B/5b2 w - - 0 1)

Egorov, Gennady Sergeevich

Zadachi i Etyudi, 1997

n6K/8/7N/2N1k1p1/7p/6nB/3Qp2B/5b2

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qd6#
  • Tries
    • 1.Bxg3+?
      • 1...Kf6
        • 2.Qd6#
      • 1...hxg3!
    • 1.Bf5?
      • threat
        • 2.Sd7#
      • 1...Kf6
        • 2.Qd6#
      • 1...Sb6!
    • 1.Bd7?
      • threat
        • 2.Sg4#
      • 1...Kf6
        • 2.Qd6#
      • 1...g4
        • 2.Sxg4#
      • 1...Bh3!
    • 1.Bc8?
      • threat
        • 2.Sg4#
      • 1...Kf6
        • 2.Qd6#
      • 1...g4
        • 2.Sxg4#
      • 1...Bh3!
    • 1.Qd5+?
      • 1...Kf4
        • 2.Qe4#
      • 1...Kf6
        • 2.Qe6#
        • 2.Qd6#
      • 1...Kxd5!
  • Keys
    • 1.Bg1!
      • threat
        • 2.Qd4#
      • 1...Kf6
        • 2.Qd6#
      • 1...Se4
        • 2.Sd7#
      • 1...Sf5
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINS(c),S_FLIGHT::QAR2(A)
  • Tries
    • Try
      • B(B);CHECK,XS(c)
      • Vars
        • K(e);S_FLIGHT::QAR2(A)
      • Refutation
        • P(d);XB(B)
    • Try
      • B(C);
      • Threat
        • S(D)
      • Vars
        • K(e);N_SPINS(c),S_FLIGHT::QAR2(A)
      • Refutation
        • S(g);
    • Try
      • B(C);
      • Threat
        • S(E)
      • Vars
        • K(e);N_SPINS(c),S_FLIGHT::QAR2(A)
        • P(f);::S(E),XP(f)
      • Refutation
        • B(a);
    • Try
      • B(C);
      • Threat
        • S(E)
      • Vars
        • K(e);N_SPINS(c),S_FLIGHT::QAR2(A)
        • P(f);::S(E),XP(f)
      • Refutation
        • B(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(A)
      • Refutation
        • K(e);N_SPINS(c),P-FLIGHT,XQ(A)
  • Actual
    • B(B);N_PINS(c)
    • Threat
      • QAB1(A)
    • Vars
      • K(e);S_FLIGHT::QAR2(A)
      • S(c);SBLOCK::S(D)
      • S(c);SBLOCK::S(E)
HTML5 logo

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).