MESON Chess Problem Database

Problem Display
PID: 222487 (4N3/2p3p1/4K3/1Bp3p1/1n2k2n/2P1p1P1/8/3R1R2 w - - 0 1)

Briggs, A

Preston Guardian, 1882

(First published on Wed Jul 19 1882)

4N3/2p3p1/4K3/1Bp3p1/1n2k2n/2P1p1P1/8/3R1R2

#2

7 + 8

533 Philadelphia Times 1883
6490 yacpdb 2020
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Bd3#
      • 2.Bc6#
    • 1...Sc2
      • 2.Bd3#
      • 2.Bc6#
    • 1...Sd3
      • 2.Bxd3#
      • 2.Bc6#
    • 1...Sd5
      • 2.Bd3#
    • 1...Sa6
      • 2.Bd3#
      • 2.Bc6#
    • 1...Sc6
      • 2.Bd3#
      • 2.Bxc6#
    • 1...c4
      • 2.Rd4#
    • 1...g4
      • 2.Rf4#
    • 1...c6
      • 2.Sd6#
    • 1...g6
      • 2.Sf6#
  • Tries
    • 1.Bc6+?
      • 1...Sd5
        • 2.Bxd5#
      • 1...Sxc6!
    • 1.cxb4?
      • threat
        • 2.Bc6#
      • 1...c6
        • 2.Sd6#
        • 2.Bxc6#
      • 1...e2!
  • Keys
    • 1.Be2!
      • 1...Sg2
        • 2.Bf3#
      • 1...Sa2
        • 2.Bd3#
      • 1...Sc2
        • 2.Bd3#
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sd5
        • 2.Bd3#
      • 1...Sa6
        • 2.Bd3#
      • 1...Sc6
        • 2.Bd3#
      • 1...Sf3
        • 2.Bxf3#
      • 1...Sf5
        • 2.Bf3#
      • 1...Sg6
        • 2.Bf3#
      • 1...c4
        • 2.Rd4#
      • 1...g4
        • 2.Rf4#
      • 1...c6
        • 2.Sd6#
      • 1...g6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::B(E)
    • P(e);N_GUARD::R1(A)
    • P(f);N_GUARD::R1(B)
    • P(g);N_GUARD::S(G)
    • P(h);N_GUARD::S(G)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::B(E),XS(b)
      • Refutation
        • S(b);XB(E)
    • Try
      • P(C);XS(b)
      • Threat
        • B(E)
      • Refutation
        • P(a);
  • Actual
    • B(E);
    • Vars
      • S(d);N_GUARD::B(E)
      • S(b);N_GUARD::B(E)
      • S(b);N_GUARD::B(E),XS(b)
      • S(d);N_GUARD::B(E),XS(d)
      • P(e);N_GUARD::R1(A)
      • P(f);N_GUARD::R1(B)
      • P(g);N_GUARD::S(G)
      • P(h);N_GUARD::S(G)
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