MESON Chess Problem Database

Problem Display
PID: 247663 (2bRRrn1/6Qq/5n2/1B1pr1Np/1P1kppp1/8/3P2N1/5K2 w - - 0 1)

Kish, Alexander

British Chess Magazine, 1932

2bRRrn1/6Qq/5n2/1B1pr1Np/1P1kppp1/8/3P2N1/5K2

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Qa7#
    • 1...Qg6
      • 2.Qa7#
    • 1...Qh6
      • 2.Qa7#
    • 1...Qh8
      • 2.Qa7#
    • 1...Rf5
      • 2.Rxe4#
    • 1...Sd7
      • 2.Se6#
  • Tries
    • 1.Se3?
      • threat
        • 2.Sc2#
      • 1...Rexe8
        • 2.Rxd5#
      • 1...Re6
        • 2.Rxd5#
      • 1...Re7
        • 2.Rxd5#
      • 1...fxe3!
    • 1.Qc7?
      • threat
        • 2.Qxe5#
        • 2.Qb6#
        • 2.Qc3#
        • 2.Qc4#
        • 2.Qc5#
      • 1...Rxg5
        • 2.Qb6#
        • 2.Qc3#
        • 2.Qc4#
        • 2.Qc5#
      • 1...Rexe8
        • 2.Qc3#
      • 1...Rfxe8
        • 2.Qb6#
        • 2.Qc3#
        • 2.Qc4#
        • 2.Qc5#
      • 1...Sxe8
        • 2.Qb6#
        • 2.Qc3#
        • 2.Qc4#
        • 2.Qc5#
      • 1...Qf5
        • 2.Qb6#
        • 2.Qc3#
        • 2.Qc4#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Qd7
        • 2.Qxe5#
        • 2.Qb6#
        • 2.Qc3#
        • 2.Qc5#
      • 1...Qe7
        • 2.Qc3#
        • 2.Qc4#
      • 1...Rf5
        • 2.Qb6#
        • 2.Qc3#
        • 2.Qc4#
        • 2.Qc5#
      • 1...Re6
        • 2.Qc3#
      • 1...Re7
        • 2.Qc3#
      • 1...Be6
        • 2.Qb6#
        • 2.Qc3#
        • 2.Qc4#
        • 2.Qc5#
      • 1...Bd7
        • 2.Qxe5#
        • 2.Qb6#
        • 2.Qc3#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Sd7
        • 2.Qc3#
      • 1...Se7
        • 2.Qb6#
        • 2.Qc3#
        • 2.Qc4#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Qxc7!
  • Keys
    • 1.Sxf4!
      • threat
        • 2.Se2#
      • 1...Rexe8
        • 2.Rxd5#
      • 1...Sxe8
        • 2.Rxd5#
      • 1...Re6
        • 2.Rxd5#
      • 1...Re7
        • 2.Rxd5#
      • 1...Qf5
        • 2.Qa7#
      • 1...Rf5
        • 2.Rxe4#
      • 1...Sd7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • Q(i);N_GUARD::QAB(G)
    • R(f);OGATE,P_SPINS(h)::R1(I),XP(b)
    • S(h);N_SPINP(e),P_SPINR(f),S_CUTB(j)::S(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • R(f);N_GUARD,P_SPINS(h),XR(I)::R1(H),XP(e)
        • R(f);N_GUARD,P_SPINS(h)::R1(H),XP(e)
      • Refutation
        • P(c);XS(C)
    • Try
      • Q(G);
      • Threat
        • DUALS(5)
      • Vars
        • R(f);XR(I)::QAB1(G)
        • R(f);::QAB1(G)
        • S(h);N_SPINP(e)::QAB1(G)
      • Refutation
        • Q(i);XQ(G)
  • Actual
    • S(C);XP(c)
    • Threat
      • S(C)
    • Vars
      • R(f);N_GUARD,P_SPINS(h),XR(I)::R1(H),XP(e)
      • S(h);N_GUARD,P_PINS(C),P_SPINR(f),XR(I)::R1(H),XP(e)
      • R(f);N_GUARD,P_SPINS(h)::R1(H),XP(e)
      • Q(i);N_GUARD,P_PINS(C)::QAB(G)
      • R(f);OGATE,P_PINS(C),P_SPINS(h)::R1(I),XP(b)
      • S(h);N_SPINP(e),P_PINS(C),P_SPINR(f),S_CUTB(j)::S(F)
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).