MESON Chess Problem Database

Problem Display
PID: 6426 (2KQ4/2Npr1p1/1p3kB1/7P/4RP2/bqr3N1/1B6/7b w - - 0 1)

Mari, Alberto

1st Prize, Magyar Sakkvilag, 1929

2KQ4/2Npr1p1/1p3kB1/7P/4RP2/bqr3N1/1B6/7b

#2

9 + 9

35 L'Italia Scacchistica 1930
38 Magyar Sakkvilag 1930
6230 Ajedrez Artistico 1968
3098 FIDE Album (1914-1944) (I) 1971
3979 Systematic Terminology 1984
1077 Boletim da UBP 1989
1077 Boletim da UBP 1991
14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Bxc3#
    • 1...Qf7
      • 2.Bxc3#
    • 1...Qg8
      • 2.Bxc3#
    • 1...Bxe4
      • 2.Sxe4#
    • 1...Bxb2
      • 2.Qxe7#
    • 1...Bc5
      • 2.Se8#
    • 1...d5
      • 2.Re6#
    • 1...d6
      • 2.Qxe7#
  • Tries
    • 1.Kb8?
      • threat
        • 2.Se8#
      • 1...Bxe4
        • 2.Sxe4#
      • 1...Qf7
        • 2.Bxc3#
      • 1...Qg8
        • 2.Bxc3#
      • 1...Bd6!
  • Keys
    • 1.Kb7!
      • threat
        • 2.Se8#
      • 1...Qd5+
        • 2.Sxd5#
      • 1...Bxe4+
        • 2.Sxe4#
      • 1...Qf7
        • 2.Bxc3#
      • 1...Qg8
        • 2.Bxc3#
      • 1...d5
        • 2.Re6#
      • 1...d6
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(c);N_GUARD::B(A),XR(d)
    • Q(c);N_GUARD,P_PINQ(I)::B(A),XR(d)
    • B(a);XR(C)::S(B),XB(a)
    • B(b);N_GUARD,N_SPINR(d),P_SPINR(h),XB(A)::QAB1(I),XR(h)
    • B(b);N_PINS(G)::S(G)
    • P(g);N_GUARD,S_CUTQ(c)::R1(C)
    • P(g);S_CUTB(b)::QAB1(I),XR(h)
  • Tries
    • Try
      • K(H);N_SPINS(G),P-FLIGHT
      • Threat
        • S(G)
      • Vars
        • B(a);XR(C)::S(B),XB(a)
        • Q(c);N_GUARD::B(A),XR(d)
        • Q(c);N_GUARD,P_PINQ(I)::B(A),XR(d)
      • Refutation
        • B(b);P_PINS(G)
  • Actual
    • K(H);N_SPINS(G),P_SPINR(C),S_FLIGHT
    • Threat
      • S(G)
    • Vars
      • Q(c);CHECK,N_GUARD,N_PINR(C)::S(G),XQ(c)
      • B(a);CHECK,XR(C)::S(B),XB(a)
      • Q(c);N_GUARD::B(A),XR(d)
      • P(g);N_PINR(C),P_PINS(G)::R1(C)
      • P(g);P_PINS(G),S_CUTB(b)::QAB1(I),XR(h)
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).