MESON Chess Problem Database

Problem Display
PID: 4717 (5b2/1Q6/1P4R1/3rkP2/8/5R1K/5N2/6B1 w - - 0 1)

Laws, Benjamin Glover

1st Prize, Northern Figaro, 1888-1889

5b2/1Q6/1P4R1/3rkP2/8/5R1K/5N2/6B1

#2

8 + 3

187 The Chess Bouquet 1897
15 British Chess Magazine 1911
3360 Simple Two-move Themes 1924
887 Mate in Two Moves 1931
58 Tijdschrift vd NSB 1931
3571 An English Bohemian 1933
785 Het Belgisch Schaakbord (L'Echiquier Belge) 1955
3310 2345 Chess Problems 1997
14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sg4#
      • 2.Qe4#
    • 1...Rd2
      • 2.Sg4#
      • 2.Qe4#
    • 1...Rd3
      • 2.Sxd3#
      • 2.Sg4#
      • 2.Qe4#
    • 1...Rd4
      • 2.Re6#
    • 1...Ra5
      • 2.Sd3#
      • 2.Sg4#
      • 2.Qe4#
    • 1...Rb5
      • 2.Sd3#
      • 2.Sg4#
      • 2.Qe4#
    • 1...Rc5
      • 2.Sd3#
      • 2.Sg4#
      • 2.Qe4#
    • 1...Rd6
      • 2.Sg4#
      • 2.Qe4#
    • 1...Rd7
      • 2.Sg4#
      • 2.Qe4#
    • 1...Rd8
      • 2.Sg4#
      • 2.Qe4#
    • 1...Ba3
      • 2.Qg7#
    • 1...Bb4
      • 2.Qg7#
    • 1...Bc5
      • 2.Qg7#
    • 1...Bd6
      • 2.Qg7#
    • 1...Bg7
      • 2.Qxg7#
  • Tries
    • 1.Sd3+?
      • 1...Rxd3
        • 2.Re6#
      • 1...Ke4!
    • 1.Qc7+?
      • 1...Kd4
        • 2.Rd3#
        • 2.Rg4#
        • 2.Qc3#
      • 1...Bd6
        • 2.Qg7#
      • 1...Rd6!
    • 1.Qe7+?
      • 1...Kd4
        • 2.Rg4#
      • 1...Bxe7!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Qxd5#
      • 1...Kd4
        • 2.Qxd5#
      • 1...Kxd6
        • 2.Qc7#
      • 1...Rxd6
        • 2.Sg4#
      • 1...Bxd6
        • 2.Qg7#
      • 1...Rd1
        • 2.Bh2#
      • 1...Rd2
        • 2.Bh2#
      • 1...Rd3
        • 2.Bh2#
      • 1...Rd4
        • 2.Re6#
      • 1...Ra5
        • 2.Bh2#
      • 1...Rb5
        • 2.Bh2#
      • 1...Rc5
        • 2.Bh2#

There are these versions: 145672

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 4
  • Sets
    • R(a);SBLOCK::R1(G)
    • B(c);N_GUARD::QAB(H)
    • B(c);N_GUARD::QAB(H),XB(c)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • R(a);P_PINR(C),XS(B)::R1(G)
      • Refutation
        • K(b);P-FLIGHT,P_SPINR(a)
    • Try
      • Q(H);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAB(H)
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • Q(H);CHECK
      • Vars
        • K(b);S_FLIGHT::R(G)
      • Refutation
        • B(c);XQ(H)
  • Actual
    • R(G);
    • Threat
      • QAR1(H),XR(a)
    • Vars
      • K(b);P_SPINR(a),S_FLIGHT::QAR1(H),XR(a)
      • K(b);OGATEB,S_FLIGHT,XR(G)::QAB1(H)
      • R(a);SBLOCK,XR(G)::S(B)
      • B(c);N_GUARD,SBLOCK,XR(G)::QAB(H)
      • R(a);::B(A)
      • R(a);P_PINR(C)::B(A)
      • R(a);SBLOCK::R1(G)
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