MESON Chess Problem Database

Problem Display
PID: 19058 (1QnB4/3p1pq1/N3kp2/p3N3/1b2B1P1/2P2P2/8/3KR3 w - - 0 1)

Mendes de Moraes Filho, Feliciano

2nd Prize=, Western Daily Mercury, 1911

1QnB4/3p1pq1/N3kp2/p3N3/1b2B1P1/2P2P2/8/3KR3

#2

10 + 8

15 British Chess Magazine 1912
35 L'Italia Scacchistica 1930

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc3
      • 2.Sc5#
    • 1...Bc5
      • 2.Sxc5#
    • 1...f5
      • 2.gxf5#
    • 1...d5
      • 2.Bf5#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Sc7#
        • 2.Bc6#
        • 2.Bb7#
        • 2.Ba8#
      • 1...Qxg4
        • 2.Sc7#
      • 1...Bxc3
        • 2.Sc5#
        • 2.Sc7#
      • 1...d5
        • 2.Bf5#
        • 2.Qxc8#
      • 1...d6
        • 2.Bc6#
        • 2.Qxc8#
      • 1...Qh6
        • 2.Sc7#
      • 1...Qg5
        • 2.Sc7#
      • 1...Qg6
        • 2.Sc7#
      • 1...Qh7
        • 2.Sc7#
      • 1...Bc5
        • 2.Sxc5#
        • 2.Sc7#
      • 1...Sd6
        • 2.Sc7#
      • 1...f5
        • 2.Sc7#
        • 2.gxf5#
      • 1...Bd6!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sd4#
      • 1...Bxc3
        • 2.Sc5#
      • 1...dxc6
        • 2.Bxc6#
      • 1...d5
        • 2.Bf5#
      • 1...d6
        • 2.Qxc8#
      • 1...Bc5
        • 2.Sxc5#
      • 1...Bd6
        • 2.Qb3#
      • 1...Sd6
        • 2.Sc7#
      • 1...f5
        • 2.gxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD,XP(C)::S(H)
    • B(a);N_GUARD::S(H),XB(a)
    • P(d);OGATE::P(F),XP(d)
    • P(e);SBLOCK::B(E)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(4)
      • Vars
        • Q(g);P_PINP(D),XP(F)::S(H)
        • Q(g);::S(H)
        • S(h);::S(H)
      • Refutation
        • B(a);
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • B(a);N_GUARD,XP(C)::S(H)
      • P(e);OGATE,XS(G)::R(B)+B(E),XP(e)
      • P(e);SBLOCK::R(B)+B(E),DCHECK
      • P(e);OGATEB,SBLOCK::QAB(I),XS(h)
      • B(a);N_GUARD::S(H),XB(a)
      • B(a);OGATE,SBLOCK::QAB(I)
      • S(h);SBLOCK::S(H)
      • P(d);OGATE::P(F),XP(d)
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