MESON Chess Problem Database

Problem Display
PID: 41791 (b3Q3/3P4/6RK/rR2r1pN/2P1k3/2Pn4/4P1Nb/7B w - - 0 1)

Baev, Georgy S

Loshinski, Lev Ilich

De Problemist, 1929

b3Q3/3P4/6RK/rR2r1pN/2P1k3/2Pn4/4P1Nb/7B

#2

11 + 7

5314 Grossmeister Shakhmatnoi Kompozitsii 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Se3#
    • 1...Re6
      • 2.Sf6#
    • 1...Re7
      • 2.Sf6#
    • 1...Rxe8
      • 2.Sf6#
    • 1...Bg1
      • 2.Sg3#
    • 1...Bg3
      • 2.Sxg3#
    • 1...Sf4
      • 2.Qxe5#
  • Tries
    • 1.Se1+?
      • 1...Kf5
        • 2.Rxg5#
        • 2.Qe6#
      • 1...Ke3!
    • 1.Sgf4+?
      • 1...Kf5
        • 2.Rxg5#
        • 2.Qe6#
      • 1...Ke3!
    • 1.Qxa8+?
      • 1...Kf5
        • 2.Se3#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Rxa8!
  • Keys
    • 1.Re6!
      • threat
        • 2.Qg6#
      • 1...Rxe6+
        • 2.Sf6#
      • 1...Kf5
        • 2.Se3#
      • 1...Sf4
        • 2.Rexe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • K(c);S_FLIGHT::S(C)
    • R(e);P_PINR(H)::S(G)
    • R(e);::S(G)
    • R(e);N_SPINR(e),XQ(K)::S(G)
    • B(a);N_GUARD::S(G)
    • B(a);N_GUARD::S(G),XB(a)
    • S(b);N_GUARD,S_CUTB(a)::QAR1(K),XR(e)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(K);CHECK,N_PINR(e),XB(g)
      • Vars
        • K(c);P_SPINR(e),S_FLIGHT::S(C)
        • R(e);N_GUARD,P_SPINR(e)::QAB1(K),XR(e)
      • Refutation
        • R(d);XQ(K)
  • Actual
    • R(H);
    • Threat
      • QAB(K)
    • Vars
      • R(e);CHECK,XR(H)::S(G)
      • K(c);S_FLIGHT::S(C)
      • S(b);N_GUARD,S_CUTB(a)::R1(H),XR(e)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).