MESON Chess Problem Database

Problem Display
PID: 25693 (1B6/1BN1rr1p/8/4P1RK/RN1P1k2/2Q1qP2/2nP1p2/1bb5 w - - 0 1)

Stocchi, Ottavio

5th HM., Il Problema, 1932/II

1B6/1BN1rr1p/8/4P1RK/RN1P1k2/2Q1qP2/2nP1p2/1bb5

#2

12 + 9

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd2
      • 2.Sbd5#
      • 2.Scd5#
    • 1...Qxd4
      • 2.Sd3#
      • 2.Sbd5#
    • 1...Qe1
      • 2.Sd3#
      • 2.Sbd5#
      • 2.Scd5#
    • 1...Qe2
      • 2.Sbd5#
      • 2.Scd5#
    • 1...Qd3
      • 2.Sxd3#
    • 1...Qxf3+
      • 2.Qxf3#
    • 1...Qxe5
      • 2.Sd3#
      • 2.Scd5#
    • 1...Rxe5
      • 2.Se6#
    • 1...Re6
      • 2.Sxe6#
    • 1...Rd7
      • 2.Se6#
    • 1...Sa1
      • 2.Qxe3#
    • 1...Se1
      • 2.Qxe3#
    • 1...Sa3
      • 2.Qxe3#
    • 1...Sxb4
      • 2.Qxe3#
    • 1...Sxd4
      • 2.Qxe3#
  • Tries
    • 1.dxe3+?
      • 1...Bxe3
        • 2.Sd3#
      • 1...Sxe3!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Rg4#
      • 1...Qxf3+
        • 2.Qxf3#
      • 1...Qxd4
        • 2.Sbd5#
      • 1...Qxd3
        • 2.Sxd3#
      • 1...Qxe5
        • 2.Scd5#
      • 1...Rxe5
        • 2.Se6#
      • 1...Sxd4
        • 2.Qxe3#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Rg7
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • Q(e);N_GUARD::S(E),XQ(e)
    • Q(e);CHECK,OGATE,XP(C)::QAR1(B),XQ(e)
    • R(g);N_GUARD,P_PINR(H),XP(G)::S(K)
    • R(g);N_GUARD::S(K),XR(g)
    • R(g);N_GUARD::S(K)
    • S(c);N_GUARD::QAB1(B),XQ(e)
    • S(c);N_GUARD,XS(E)::QAB1(B),XQ(e)
    • S(c);N_GUARD,XP(F)::QAB1(B),XQ(e)
  • Tries
    • Try
      • P(A);CHECK,XQ(e)
      • Vars
        • B(b);SBLOCK,XP(A)::S(E)
      • Refutation
        • S(c);XP(A)
  • Actual
    • Q(B);
    • Threat
      • R1(H)
    • Vars
      • Q(e);CHECK,OGATE,XP(C)::QAR1(B),XQ(e)
      • Q(e);XP(F)::S(E)
      • Q(e);XQ(B)::S(E),XQ(e)
      • Q(e);P_PINR(H),XP(G)::S(K)
      • R(g);N_GUARD,P_PINR(H),XP(G)::S(K)
      • S(c);N_GUARD,XP(F)::QAB1(B),XQ(e)
      • Q(e);N_GUARD::QAR1(B),XQ(e)
      • R(h);N_GUARD,P_PINR(H)::QAR1(B),XR(h)
      • R(h);N_GUARD::QAR1(B)
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).