MESON Chess Problem Database

Problem Display
PID: 114185 (8/1p2Kb2/2pB4/2Q3nq/1r2k1P1/6p1/n4RRp/3N1rbB w - - 0 1)

Stocchi, Ottavio

Milwaukee Journal, 1950

8/1p2Kb2/2pB4/2Q3nq/1r2k1P1/6p1/n4RRp/3N1rbB

#2

8 + 12

14475 Mat Plus Review 2007
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Qf5#
    • 1...Bd5
      • 2.Qe3#
    • 1...Sh3
      • 2.Rxg3#
    • 1...Se6
      • 2.Rxg3#
    • 1...Sh7
      • 2.Rxg3#
  • Tries
    • 1.Sc3+?
      • 1...Kd3
        • 2.Rd2#
      • 1...Sxc3!
    • 1.Rf4+?
      • 1...Kd3
        • 2.Qc2#
      • 1...Rxf4!
    • 1.Qxb4+?
      • 1...Kd3
        • 2.Rd2#
      • 1...Kd5
        • 2.Se3#
      • 1...Bc4
        • 2.Qxc4#
      • 1...Sxb4!
    • 1.Qc2+?
      • 1...Kd4
        • 2.Rd2#
      • 1...Kd5!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Rge2#
      • 1...Kf3
        • 2.Rxg3#
      • 1...Rf2
        • 2.Qe3#
      • 1...Rf3
        • 2.Qe5#
      • 1...Bf2
        • 2.Qf5#
      • 1...Be3
        • 2.Qxe3#
      • 1...Sf3
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 5
  • Sets
    • R(f);SBLOCK::QAB1(F)
    • B(l);SBLOCK::QAR1(F)
    • S(h);N_GUARD::B(B)+R(D),XP(e)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(g);S_FLIGHT::R1(C)
      • Refutation
        • S(c);XS(A)
    • Try
      • R(C);CHECK
      • Vars
        • K(g);S_FLIGHT::QAB1(F)
      • Refutation
        • R(a);XR(C)
    • Try
      • Q(F);CHECK,XR(f)
      • Vars
        • K(g);S_FLIGHT::R1(C)
        • K(g);S_FLIGHT::S(A)
        • B(l);N_GUARD,P_SPINB(l)::QAR2(F),XB(l)
      • Refutation
        • S(c);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(g);P-FLIGHT::R(C)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • R(C);
    • Threat
      • B(B)+R(D),DCHECK
    • Vars
      • K(g);S_FLIGHT::B(B)+R(D),DCHECK,XP(e)
      • R(a);S_CUTB(b)::QAR1(F)
      • R(a);SBLOCK::QAR1(F)
      • B(b);S_CUTR(a)::QAB1(F)
      • B(b);N_GUARD::QAR1(F),XB(b)
      • S(h);SBLOCK::QAB(F)
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).