MESON Chess Problem Database

Problem Display
PID: 197056 (6B1/b1B5/2P3pK/6Rb/2Nkp3/4R3/1P3r2/6Qn w - - 0 1)

Kuznetsov, Pavel G

Zadachi i Etyudi, 1996

6B1/b1B5/2P3pK/6Rb/2Nkp3/4R3/1P3r2/6Qn

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Qd1#
    • 1...Bc5
      • 2.Be5#
    • 1...Bb6
      • 2.Bxb6#
    • 1...Bb8
      • 2.Bb6#
  • Tries
    • 1.Qxf2?
      • threat
        • 2.Qd2#
        • 2.Qf6#
      • 1...Be2
        • 2.Qf6#
      • 1...Bf3
        • 2.Qd2#
      • 1...Sxf2!
    • 1.Qd1+?
      • 1...Rd2
        • 2.Qxd2#
      • 1...Bxd1!
    • 1.b3?
      • threat
        • 2.Rd5#
      • 1...Rf7
        • 2.Qa1#
      • 1...Rf5!
    • 1.b4?
      • threat
        • 2.Be5#
      • 1...Rf5
        • 2.Qa1#
      • 1...Bb8
        • 2.Bb6#
      • 1...Rf7!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qxa7#
      • 1...Rxb2
        • 2.Qxb2#
      • 1...Rf5
        • 2.b4#
      • 1...Rf7
        • 2.b3#
      • 1...Bc5
        • 2.Be5#
      • 1...Bb6
        • 2.Bxb6#
      • 1...Bb8
        • 2.Bb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(b);N_GUARD,S_CUTB(e)::QAR(A)
    • B(g);SBLOCK::B(H)
    • B(g);N_GUARD::B(H),XB(g)
    • B(g);N_GUARD::B(H)
  • Tries
    • Try
      • Q(A);XR(b)
      • Threat
        • DUALS(2)
      • Vars
        • B(e);::QAB(A)
        • B(e);::QAR2(A)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAR2(A),XR(b)
      • Refutation
        • B(e);XQ(A)
    • Try
      • P(B);
      • Threat
        • R1(E)
      • Vars
        • R(b);N_GUARD::QAB(A)
      • Refutation
        • R(b);
    • Try
      • P(B);
      • Threat
        • B(H)
      • Vars
        • R(b);N_GUARD::QAB(A)
        • B(g);N_GUARD::B(H)
      • Refutation
        • R(b);
  • Actual
    • Q(A);
    • Threat
      • QAB(A),XB(g)
    • Vars
      • R(b);OGATE,P_SPINR(b),XP(B)::QAB(A),XR(b)
      • R(b);N_GUARD::QAB(A)+P(B)
      • B(g);SBLOCK::B(H)
      • B(g);N_GUARD::B(H),XB(g)
      • B(g);N_GUARD::B(H)
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).