MESON Chess Problem Database

Problem Display
PID: 11400 (3K4/2p2P2/Qn1Pb3/PNk3nR/1p3P2/1qrp4/3N1P2/2R3BB w - - 0 1)

Paros, Gyorgy

3rd Prize, L'Italia Scacchistica, 1938

3K4/2p2P2/Qn1Pb3/PNk3nR/1p3P2/1qrp4/3N1P2/2R3BB

#2

13 + 9

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Sxb3#
    • 1...Sa4
      • 2.Qc6#
    • 1...Sc4
      • 2.Qc6#
    • 1...Sd7
      • 2.Qc6#
    • 1...Sa8
      • 2.Qc6#
    • 1...Sc8
      • 2.Qc6#
    • 1...cxd6
      • 2.Qxb6#
    • 1...c6
      • 2.Qxb6#
  • Tries
    • 1.Sxb3+?
      • 1...Kc4
        • 2.S5d4#
      • 1...Bxb3!
  • Keys
    • 1.Sxc7!
      • threat
        • 2.Qxb6#
      • 1...Kd4
        • 2.f3#
      • 1...Kxd6
        • 2.f8Q#
        • 2.f8B#
      • 1...Sa4
        • 2.f3#
      • 1...Sc4
        • 2.Sxe6#
      • 1...Sd5
        • 2.Sxb3#
      • 1...Sd7
        • 2.f3#
      • 1...Sa8
        • 2.f3#
      • 1...Sc8
        • 2.f3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(b);S_CUTB(h)::S(D),XQ(a)
    • S(g);OGATE::QAR1(J)
    • S(g);N_SPINR(b),OGATE::QAR1(J)
    • P(i);N_GUARD,XP(K)::QAB1(J),XS(g)
    • P(i);N_GUARD::QAB1(J),XS(g)
  • Tries
    • Try
      • S(D);CHECK,XQ(a)
      • Vars
        • K(e);N_SPINS(f),P-FLIGHT::QAB(J)+S(H)
      • Refutation
        • B(h);XS(D)
  • Actual
    • S(H);XP(i)
    • Threat
      • QAB1(J),XS(g)
    • Vars
      • K(e);N_SPINR(b),N_SPINS(f),S_FLIGHT::B(B)+P(E)
      • K(e);N_SPINR(b),N_SPINS(f),P_SPINS(g),S_FLIGHT,XP(K)::P=Q
      • S(g);::B(B)+P(E)
      • S(g);N_SPINR(b),S_CUTQ(a)::S(H),XB(h)
      • S(g);N_SPINS(f),S_CUTB(h)::S(D),XQ(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).