MESON Chess Problem Database

Problem Display
PID: 77235 (1B1rNrR1/6bb/2p1B3/4nP1p/2p3kP/3p1p1R/1Q4P1/K7 w - - 0 1)

Baev, Georgy S

Loshinski, Lev Ilich

3rd HM., Gazette de Liege, 1930

1B1rNrR1/6bb/2p1B3/4nP1p/2p3kP/3p1p1R/1Q4P1/K7

#2

10 + 11

5314 Grossmeister Shakhmatnoi Kompozitsii 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Qxd4#
    • 1...Rxb8
      • 2.Qd4#
    • 1...Rc8
      • 2.Qd4#
    • 1...Rdxe8
      • 2.Qd4#
    • 1...Sg6
      • 2.f6#
    • 1...Sd7
      • 2.Qd4#
    • 1...Sf7
      • 2.Sf6#
  • Tries
    • 1.Sf6+?
      • 1...Kf4
        • 2.Rxf3#
        • 2.Qxe5#
        • 2.Qd2#
      • 1...Rxf6!
    • 1.Rxg7+?
      • 1...Kf4
        • 2.Qxe5#
      • 1...Sg6
        • 2.f6#
      • 1...Bg6!
    • 1.f6+?
      • 1...Kf4
        • 2.Qxe5#
      • 1...Bf5!
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qg3#
      • 1...Sg6+
        • 2.f6#
      • 1...Sd7+
        • 2.Qd4#
      • 1...Sf7+
        • 2.Sf6#
      • 1...Kf4
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(j);N_GUARD::QAR(B),XR(j)
    • R(j);N_GUARD,XB(H)::QAR(B)
    • R(j);N_GUARD::QAR(B)
    • R(j);N_GUARD,XS(I)::QAR(B)
    • S(e);N_SPINB(h),P_PINQ(B),S_CUTB(i)::B(G)+P(F)
    • S(e);P_PINQ(B),S_CUTR(j)::QAR(B)
    • S(e);P_PINQ(B),S_CUTR(k)::S(I)
  • Tries
    • Try
      • S(I);CHECK
      • Refutation
        • R(k);XS(I)
    • Try
      • R(J);CHECK,XB(h)
      • Vars
        • K(d);P-FLIGHT,P_SPINS(e)::QAB1(B),XS(e)
        • S(e);P_SPINS(e)::B(G)+P(F)
      • Refutation
        • B(i);P_SPINB(i)
    • Try
      • P(F);CHECK
      • Vars
        • K(d);N_SPINB(h),P-FLIGHT,P_SPINS(e)::QAB1(B),XS(e)
      • Refutation
        • B(i);N_SPINB(h),P_SPINB(i)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • S(e);CHECK,N_SPINB(h),S_CUTB(i)::B(G)+P(F)
      • S(e);CHECK,S_CUTR(j)::QAR(B)
      • S(e);CHECK,S_CUTR(k)::S(I)
      • K(d);N_SPINB(h),P-FLIGHT,P_SPINP(b),P_SPINS(e)::QAR1(B),XP(b)
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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).