MESON Chess Problem Database

Problem Display
PID: 43211 (3N1R2/K1pnb1n1/3R4/2p1k1N1/p4rP1/2Pr4/5BB1/1Qq2b2 w - - 0 1)

Allingham, David

Illustrated London News, 1880

3N1R2/K1pnb1n1/3R4/2p1k1N1/p4rP1/2Pr4/5BB1/1Qq2b2

#2

10 + 11

4760 200 Classic Chess Puzzles 1993

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3
      • 2.Rd5#
    • 1...Re3
      • 2.Rd5#
    • 1...Rg3
      • 2.Rd5#
    • 1...Rh3
      • 2.Rd5#
    • 1...Rd5
      • 2.Rxd5#
    • 1...Bxd6
      • 2.Sc6#
    • 1...Bf6
      • 2.Sgf7#
      • 2.Sdf7#
    • 1...Sf6
      • 2.Sgf7#
      • 2.Sdf7#
    • 1...Sf5
      • 2.Sgf7#
      • 2.Sdf7#
      • 2.Re6#
    • 1...Sh5
      • 2.Re6#
    • 1...Se6
      • 2.Rxe6#
    • 1...Se8
      • 2.Re6#
    • 1...cxd6
      • 2.Sc6#
  • Tries
    • 1.Rf5+?
      • 1...Kxd6
        • 2.Sgf7#
        • 2.Sb7#
        • 2.Sdf7#
      • 1...Sxf5
        • 2.Sgf7#
        • 2.Sdf7#
        • 2.Re6#
      • 1...Rxf5!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Sgf7#
        • 2.Sdf7#
      • 1...Kxd6
        • 2.Sgf7#
        • 2.Sdf7#
      • 1...Rxg3
        • 2.Rd5#
      • 1...Rxd6
        • 2.Qe4#
      • 1...Bxg2
        • 2.Sdf7#
      • 1...Bxg5
        • 2.Sf7#
      • 1...Bxd6
        • 2.Sc6#
      • 1...Bxd8
        • 2.Sf7#
      • 1...cxd6
        • 2.Sc6#
      • 1...Se6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(c);N_GUARD,XP(D)::R1(G)
    • R(c);N_GUARD::R1(G)
    • R(c);N_GUARD::R1(G),XR(c)
    • B(j);SBLOCK,XR(G)::S(I)
    • S(k);N_GUARD::R1(G)
    • S(k);N_GUARD::R1(G),XS(k)
    • P(h);SBLOCK,XR(G)::S(I)
  • Tries
    • Try
      • R(J);CHECK
      • Refutation
        • R(e);XR(J)
  • Actual
    • B(B);P_PINR(e)
    • Threat
      • DUALS(2)
    • Vars
      • R(c);N_GUARD,N_SPINR(e),XB(B)::R1(G)
      • R(c);OGATE,SBLOCK,XR(G)::QAR1(A)
      • B(b);XB(C)::S(I)
      • B(j);XS(F)::S(I)
      • B(j);SBLOCK,XR(G)::S(I)
      • B(j);XS(I)::S(F)
      • P(h);SBLOCK,XR(G)::S(I)
      • S(k);N_GUARD::R1(G),XS(k)
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