MESON Chess Problem Database

Problem Display
PID: 247027 (3N2B1/5n2/1p3p2/8/1P1k2N1/1P1r1P2/1P1p1RK1/3Q4 w - - 0 1)

Kapustin, Fedor Mikhailovich

Kuligin, Nikolai Volodimirovich

Uralski Problemist, 2010

3N2B1/5n2/1p3p2/8/1P1k2N1/1P1r1P2/1P1p1RK1/3Q4

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Sc6#
    • 1...Sd6
      • 2.Sc6#
    • 1...Sh6
      • 2.Sc6#
    • 1...Sh8
      • 2.Sc6#
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qc4#
      • 1...Kd5
        • 2.Qxd3#
      • 1...Rxb3
        • 2.Qe4#
      • 1...Rc3
        • 2.Qe4#
      • 1...Sd6
        • 2.Sc6#
      • 1...b5
        • 2.Qc5#
      • 1...Se5!
    • 1.Qe2?
      • threat
        • 2.Qe4#
      • 1...Kd5
        • 2.Qxd3#
      • 1...Rxf3
        • 2.Qc4#
      • 1...Re3
        • 2.Qc4#
      • 1...Sg5
        • 2.Sc6#
      • 1...Sd6
        • 2.Sc6#
      • 1...f5!
  • Keys
    • 1.Rxd2!
      • threat
        • 2.Rxd3#
      • 1...Rxd2+
        • 2.Qxd2#
      • 1...Kd5
        • 2.Rxd3#
      • 1...Se5
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • S(f);::S(I)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(c);P-FLIGHT,P_SPINS(f)::QAR2(A),XR(b)
        • R(b);OGATE,XP(E)::QAR1(A)
        • R(b);OGATE::QAR1(A)
        • S(f);::S(I)
        • P(d);N_GUARD::QAB1(A)
      • Refutation
        • S(f);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(c);P-FLIGHT,P_SPINS(f)::QAR2(A),XR(b)
        • R(b);OGATE,XP(F)::QAR1(A)
        • R(b);OGATE::QAR1(A)
        • S(f);::S(I)
      • Refutation
        • P(e);
  • Actual
    • R(C);P_PINR(b),XP(a)
    • Threat
      • R1(C),XR(b)
    • Vars
      • R(b);CHECK,OGATE,XR(C)::QAR2(A),XR(b)
      • K(c);P-FLIGHT,P_SPINS(f)::R(C),XR(b)
      • S(f);::QAB(A)
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).