MESON Chess Problem Database

Problem Display
PID: 79774 (8/8/4Qp2/1K1p1P2/3p1bnr/1Npk4/R1b1NpB1/2qnr3 w - - 0 1)

Savournin, Jacques

4th Prize, Themes-64, 1959

8/8/4Qp2/1K1p1P2/3p1bnr/1Npk4/R1b1NpB1/2qnr3

#2

7 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Sxf4#
    • 1...Qd2
      • 2.Sc5#
    • 1...Qa3
      • 2.Sxf4#
    • 1...Qa1
      • 2.Sxf4#
    • 1...Qb1
      • 2.Sxf4#
    • 1...Bb1
      • 2.Sc5#
    • 1...Bd2
      • 2.Sc5#
    • 1...Bh2
      • 2.Sexc1#
    • 1...Bg3
      • 2.Sexc1#
    • 1...Bd6
      • 2.Sexc1#
    • 1...Bc7
      • 2.Sexc1#
    • 1...Bb8
      • 2.Sexc1#
    • 1...Sde3
      • 2.Sxf4#
    • 1...Sge3
      • 2.Sexc1#
  • Keys
    • 1.Qxd5!
      • threat
        • 2.Qe4#
      • 1...Kxe2
        • 2.Qf3#
      • 1...Ke3
        • 2.Qf3#
      • 1...Rxe2
        • 2.Qxd4#
      • 1...Qe3
        • 2.Qc4#
      • 1...Be3
        • 2.Qc4#
      • 1...Sde3
        • 2.Sxf4#
      • 1...Sge3
        • 2.Sexc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 12
  • Sets
    • Q(a);N_GUARD,P_PINS(D)::S(B),XB(i)
    • Q(a);SBLOCK::S(D)
    • Q(a);N_GUARD::S(B),XB(i)
    • B(d);::S(D)
    • B(i);SBLOCK::S(D)
    • B(i);N_GUARD::S(B),XQ(a)
    • S(b);S_CUTQ(a)::S(B),XB(i)
    • S(j);S_CUTB(i)::S(B),XQ(a)
  • Actual
    • Q(G);P_PINP(h),XP(l)
    • Threat
      • QAB1(G)
    • Vars
      • K(g);N_SPINP(h),P_SPINB(d),S_FLIGHT,XS(B)::QAB1(G)
      • K(g);N_SPINP(h),P-FLIGHT::QAR1(G)
      • R(c);SBLOCK,XS(B)::QAR1(G),XP(h)
      • Q(a);SBLOCK::QAB1(G)
      • B(i);SBLOCK::QAB1(G)
      • S(b);SBLOCK,S_CUTQ(a)::S(B),XB(i)
      • S(j);SBLOCK,S_CUTB(i)::S(B),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).