MESON Chess Problem Database

Problem Display
PID: 18988 (1BR4r/pP2R3/B6p/2pkpN2/N3r2p/1nb1pP2/2P1n2K/8 w - - 0 1)

Thomson, Robert Gavin

1st Prize, Chess Amateur (The), 1911

1BR4r/pP2R3/B6p/2pkpN2/N3r2p/1nb1pP2/2P1n2K/8

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sxe3#
      • 2.Rxe5#
    • 1...Bd4
      • 2.c4#
    • 1...Sec1
      • 2.Sxc3#
    • 1...Sg1
      • 2.Sxc3#
    • 1...Sg3
      • 2.Sxc3#
    • 1...Sed4
      • 2.Sxc3#
    • 1...Sf4
      • 2.Sxc3#
    • 1...Sa1
      • 2.Rxc5#
    • 1...Sbc1
      • 2.Rxc5#
    • 1...Sd2
      • 2.Rxc5#
    • 1...Sbd4
      • 2.Rxc5#
    • 1...Sa5
      • 2.Rxc5#
  • Tries
    • 1.Rd8+?
      • 1...Kc6
        • 2.Re6#
        • 2.Rc7#
        • 2.Rd6#
      • 1...Rxd8!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Rd7#
      • 1...Kxd4
        • 2.Rd7#
      • 1...Rxd4
        • 2.Rxe5#
      • 1...Bxd4
        • 2.c4#
      • 1...Sexd4
        • 2.Sxc3#
      • 1...Sbxd4
        • 2.Rxc5#
      • 1...cxd4
        • 2.Bc4#
      • 1...exd4
        • 2.fxe4#
      • 1...Rh7
        • 2.Rd8#
      • 1...Rd8
        • 2.Rxd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 8
  • Sets
    • B(c);OGATE::P(A)
    • S(a);N_GUARD::S(D),XB(c)
    • S(b);N_GUARD::R1(J),XP(g)
  • Tries
    • Try
      • R(J);CHECK
      • Refutation
        • R(l);XR(J)
  • Actual
    • S(E);
    • Threat
      • R(H)
    • Vars
      • K(h);P-FLIGHT,XS(E)::R(H)
      • R(e);N_GUARD,SBLOCK,XS(E)::R1(H),XP(i)
      • B(c);OGATE,SBLOCK,XS(E)::P(A)
      • S(a);N_GUARD,SBLOCK,XS(E)::S(D),XB(c)
      • S(b);N_GUARD,SBLOCK,XS(E)::R1(J),XP(g)
      • P(g);SBLOCK,XS(E)::B(F)
      • P(i);SBLOCK,XS(E)::P(C),XR(e)
      • R(l);N_GUARD::R(J)
      • R(l);N_GUARD::R(J),XR(l)
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