MESON Chess Problem Database

Problem Display
PID: 54472 (N7/B1pP4/Kb1p4/RB1knP2/P3b3/1PrPq3/n1N1R3/Q7 w - - 0 1)

Massov, AG

Sonnenfeld, Felix Alexander

Vida Rotaria-Brasil, 1958

N7/B1pP4/Kb1p4/RB1knP2/P3b3/1PrPq3/n1N1R3/Q7

#2

13 + 9

5309 O Mosqueteiro do Rei 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.dxe4#
    • 1...Rc5
      • 2.Sxe3#
    • 1...Rc6
      • 2.Bc4#
    • 1...Bxa5
      • 2.Sxe3#
    • 1...Bc5
      • 2.Sxc7#
    • 1...Sc6
      • 2.Bc4#
    • 1...c5
      • 2.Sxb6#
    • 1...c6
      • 2.Bc4#
  • Tries
    • 1.Sxc7+?
      • 1...Kc5
        • 2.Bxb6#
      • 1...Bxc7
        • 2.Sxe3#
      • 1...Rxc7!
  • Keys
    • 1.Kb7!
      • threat
        • 2.Bc4#
        • 2.Bc6#
      • 1...Kc5+
        • 2.Bc6#
      • 1...Bxd3
        • 2.Bc6#
      • 1...Bxf5
        • 2.Bc4#
      • 1...Bxa5
        • 2.Sxe3#
      • 1...Sc4
        • 2.Bxc4#
        • 2.Bc6#
      • 1...Sc6
        • 2.Bc4#
        • 2.Bxc6#
      • 1...Qc5
        • 2.dxe4#
      • 1...Rc4
        • 2.Bxc4#
        • 2.Bc6#
      • 1...Rc5
        • 2.Sxe3#
      • 1...Rc6
        • 2.Bc4#
        • 2.Bxc6#
      • 1...Bc5
        • 2.Sxc7#
      • 1...c5
        • 2.Sxb6#
      • 1...c6
        • 2.Bc4#
        • 2.Bxc6#

There are these versions: 174353

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(c);N_GUARD,SBLOCK::P(E),XB(d)
    • R(b);SBLOCK,S_CUTB(g)::S(B),XQ(c)
    • R(b);SBLOCK::R(G)+B(H),DCHECK
    • B(g);N_GUARD,XR(G)::S(B),XQ(c)
    • B(g);N_GUARD,S_CUTR(b)::S(M),XP(i)
    • S(f);SBLOCK::R(G)+B(H),DCHECK
    • P(i);N_GUARD,SBLOCK,S_CUTQ(c)::S(M),XB(g)
    • P(i);SBLOCK::R(G)+B(H),DCHECK
  • Tries
    • Try
      • S(M);CHECK,XP(i)
      • Vars
        • K(e);P-FLIGHT,P_SPINB(g)::B(K),XB(g)
        • B(g);XS(M)::S(B),XQ(c)
      • Refutation
        • R(b);XS(M)
  • Actual
    • K(J);S_FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • K(e);CHECK,P-FLIGHT,P_SPINB(g)::R(G)+B(H)
      • B(d);XP(E)::R(G)+B(H),DCHECK
      • B(d);XP(I)::R(G)+B(H),DCHECK
      • B(g);N_GUARD,XR(G)::S(B),XQ(c)
      • Q(c);N_GUARD,SBLOCK::P(E),XB(d)
      • R(b);SBLOCK,S_CUTB(g)::S(B),XQ(c)
      • B(g);N_GUARD,S_CUTR(b)::S(M),XP(i)
      • P(i);N_GUARD,SBLOCK,S_CUTQ(c)::S(M),XB(g)
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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).