MESON Chess Problem Database

Problem Display
PID: 46816 (3R4/1qPKP2B/2Q1p2r/1p5b/3k1Pp1/2p1N3/N5r1/2B1b3 w - - 0 1)

Gussopulo, Demetrio

4th Place, Match: Brazil - Italy, 1960

3R4/1qPKP2B/2Q1p2r/1p5b/3k1Pp1/2p1N3/N5r1/2B1b3

#2

10 + 10

3749 FIDE Album (1959-1961) 1966
5309 O Mosqueteiro do Rei 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc6+
      • 2.Kxc6#
    • 1...Qa8
      • 2.Qb6#
    • 1...Qc8+
      • 2.Kxc8#
    • 1...Qb6
      • 2.Kc8#
      • 2.Qxb6#
    • 1...Qa7
      • 2.Kc8#
      • 2.Qd6#
    • 1...Qxc7+
      • 2.Kxc7#
    • 1...Qb8
      • 2.Qd6#
    • 1...Rg1
      • 2.Sc2#
    • 1...Rc2
      • 2.Sxc2#
    • 1...Rd2
      • 2.Qxc3#
    • 1...Rg3
      • 2.Sc2#
    • 1...Rg6
      • 2.Ke8#
    • 1...Rxh7
      • 2.Kxe6#
    • 1...Bd2
      • 2.Sc2#
    • 1...Bf2
      • 2.Sc2#
      • 2.Qxc3#
    • 1...Bg3
      • 2.Qxc3#
    • 1...Bh4
      • 2.Qxc3#
    • 1...Bg6
      • 2.Kxe6#
    • 1...Be8+
      • 2.Kxe8#
    • 1...b4
      • 2.Qc4#
  • Tries
    • 1.Bg6?
      • threat
        • 2.Kxe6#
        • 2.Ke8#
      • 1...Qxc6+
        • 2.Kxc6#
      • 1...Qc8+
        • 2.Kxc8#
      • 1...Qxc7+
        • 2.Kxc7#
      • 1...Rxg6
        • 2.Ke8#
      • 1...Bxg6
        • 2.Kxe6#
      • 1...Rd2
        • 2.Qxc3#
      • 1...Bd2
        • 2.Sc2#
      • 1...Qa8
        • 2.Qb6#
      • 1...Qb8
        • 2.Qd6#
      • 1...e5
        • 2.Ke6#
        • 2.Ke8#
      • 1...Rh8!
    • 1.e8Q?
      • threat
        • 2.Ke7#
      • 1...Qxc6+
        • 2.Kxc6#
      • 1...Qc8+
        • 2.Kxc8#
      • 1...Qxc7+
        • 2.Kxc7#
      • 1...Bxe8+
        • 2.Kxe8#
      • 1...Rd2
        • 2.Qxc3#
      • 1...Bd2
        • 2.Sc2#
      • 1...Qa8
        • 2.Qb6#
      • 1...Qb8
        • 2.Qd6#
      • 1...Bh4
        • 2.Qxc3#
      • 1...e5
        • 2.Qxe5#
      • 1...Rxh7+!
  • Keys
    • 1.Bd2!
      • threat
        • 2.Sc2#
        • 2.Qxc3#
      • 1...Qxc6+
        • 2.Kxc6#
      • 1...Qc8+
        • 2.Kxc8#
      • 1...Qxc7+
        • 2.Kxc7#
      • 1...Be8+
        • 2.Kxe8#
      • 1...Rxd2
        • 2.Qxc3#
      • 1...Rxh7
        • 2.Kxe6#
      • 1...Bxd2
        • 2.Sc2#
      • 1...cxd2
        • 2.Sc2#
        • 2.Qc3#
      • 1...Rg6
        • 2.Ke8#
      • 1...Bg6
        • 2.Kxe6#
      • 1...c2
        • 2.Sxc2#
        • 2.Qc3#
      • 1...b4
        • 2.Sc2#
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • Q(j);CHECK,N_PINP(F),XQ(E)::R(J)+K(G),XQ(j)
    • Q(j);N_GUARD,N_PINP(F)::QAB(E)
    • Q(j);CHECK,N_PINP(F)::R(J)+K(G),XQ(j)
    • Q(j);CHECK,XP(F)::R(J)+K(G),XQ(j)
    • Q(j);N_GUARD,N_PINP(F)::QAR2(E)
    • R(b);N_GUARD::S(C)
    • R(b);N_GUARD::S(C),XR(b)
    • R(b);S_CUTB(a)::QAB1(E),XP(c)
    • R(i);::R(J)+K(G)
    • R(i);XB(I)::R(J)+K(G),XP(h)
    • B(a);S_CUTR(b)::S(C)
    • B(a);N_GUARD::QAB1(E),XP(c)
    • B(g);::R(J)+K(G),XP(h)
    • B(g);CHECK::R(J)+K(G),XB(g)
    • P(f);N_GUARD::QAR1(E)
  • Tries
    • Try
      • B(I);
      • Threat
        • DUALS(2)
      • Vars
        • Q(j);CHECK,N_PINP(F),XQ(E)::R(J)+K(G),XQ(j)
        • Q(j);CHECK,N_PINP(F)::R(J)+K(G),XQ(j)
        • Q(j);CHECK,XP(F)::R(J)+K(G),XQ(j)
        • R(i);XB(I)::R(J)+K(G)
        • B(g);XB(I)::R(J)+K(G),XP(h)
        • R(b);S_CUTB(a)::QAB1(E),XP(c)
        • B(a);S_CUTR(b)::S(C)
        • Q(j);N_GUARD,N_PINP(F)::QAB(E)
        • Q(j);N_GUARD,N_PINP(F)::QAR2(E)
      • Refutation
        • R(i);
    • Try
      • P(H);
      • Threat
        • R(J)+K(G)
      • Vars
        • Q(j);CHECK,N_PINP(F),XQ(E)::R(J)+K(G),XQ(j)
        • Q(j);CHECK,N_PINP(F)::R(J)+K(G),XQ(j)
        • Q(j);CHECK,XP(F)::R(J)+K(G),XQ(j)
        • B(g);CHECK,XQ(H)::R(J)+K(G),XB(g)
        • R(b);S_CUTB(a)::QAB1(E),XP(c)
        • B(a);S_CUTR(b)::S(C)
        • Q(j);N_GUARD,N_PINP(F)::QAB(E)
        • Q(j);N_GUARD,N_PINP(F)::QAR2(E)
        • B(a);N_GUARD::QAB1(E),XP(c)
        • P(h);OGATE::QAB1(H),XP(h)
      • Refutation
        • R(i);CHECK,XB(I)
  • Actual
    • B(A);
    • Threat
      • DUALS(2)
    • Vars
      • Q(j);CHECK,N_PINP(F),XQ(E)::R(J)+K(G),XQ(j)
      • Q(j);CHECK,N_PINP(F)::R(J)+K(G),XQ(j)
      • Q(j);CHECK,XP(F)::R(J)+K(G),XQ(j)
      • B(g);CHECK::R(J)+K(G),XB(g)
      • R(b);XB(A)::QAB1(E),XP(c)
      • R(i);XB(I)::R(J)+K(G),XP(h)
      • B(a);XB(A)::S(C)
      • R(i);::R(J)+K(G)
      • B(g);::R(J)+K(G),XP(h)
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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).