MESON Chess Problem Database

Problem Display
PID: 6364 (7B/2Qp1q2/K1N2rp1/NP1P1b2/6Rr/2kP1R1p/1p1p1P1b/1n1B4 w - - 0 1)

Adabashev, Mark Ivanovich

4th Prize, 64 Shakhmatnoe obozrenie, 1929/II

7B/2Qp1q2/K1N2rp1/NP1P1b2/6Rr/2kP1R1p/1p1p1P1b/1n1B4

#2

12 + 12

35 L'Italia Scacchistica 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Rh5
      • 2.Rc4#
    • 1...Rh6
      • 2.Rc4#
    • 1...Rh7
      • 2.Rc4#
    • 1...Rxh8
      • 2.Rc4#
    • 1...Bg1
      • 2.Qe5#
    • 1...Be5
      • 2.Qxe5#
    • 1...Be4
      • 2.dxe4#
    • 1...Be6
      • 2.Se5#
    • 1...dxc6
      • 2.Qxc6#
    • 1...d6
      • 2.Se7#
  • Tries
    • 1.Bxf6+?
      • 1...Be5
        • 2.Sb4#
        • 2.Sxe5#
        • 2.Sa7#
        • 2.Se7#
        • 2.Sb8#
        • 2.Sd8#
        • 2.Bxe5#
        • 2.Qxe5#
      • 1...Qxf6!
  • Keys
    • 1.Re4!
      • threat
        • 2.d4#
      • 1...Rxe4
        • 2.dxe4#
      • 1...Bxe4
        • 2.dxe4#
      • 1...dxc6
        • 2.Qxc6#
      • 1...Rf4
        • 2.Qe5#
      • 1...Bf4
        • 2.Rc4#
      • 1...Bg4
        • 2.Rc4#
      • 1...Be6
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(g);N_GUARD::R1(E)
    • R(g);N_GUARD,N_SPINR(i),XB(L)::R1(E)
    • B(d);N_GUARD::QAB(K)
    • B(d);N_GUARD,N_SPINR(i)::QAB(K),XB(d)
    • B(h);OGATE::R(D)+P(C),XB(h)
    • B(h);N_PINS(J)::QAR(K)+S(J)
    • P(k);OGATE,P_SPINP(k),XS(J)::QAR(K),XP(k)
    • P(k);N_PINS(J)::QAR(K)+S(J)
  • Tries
    • Try
      • B(L);CHECK,N_SPINS(J),XR(i)
      • Refutation
        • Q(l);P_PINS(J),XB(L)
  • Actual
    • R(E);
    • Threat
      • R(D)+P(C)
    • Vars
      • R(g);OGATE,XR(E)::R(D)+P(C),XR(g)
      • B(h);OGATE,XR(E)::R(D)+P(C),XB(h)
      • P(k);OGATE,P_SPINP(k),XS(J)::QAR(K),XP(k)
      • R(g);S_CUTB(d)::QAB(K)
      • B(d);S_CUTR(g)::R1(E)
      • B(h);S_CUTR(g)::R1(E)
      • B(h);N_PINS(J)::QAR(K)+S(J)
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).