MESON Chess Problem Database

Problem Display
PID: 142217 (2QN2b1/4B3/1p6/p2k2b1/PnN5/np2PK2/5P2/2rr4 w - - 0 1)

Lane, Henry Fitzgerald William

2nd Prize, Leisure Hour, 1903

2QN2b1/4B3/1p6/p2k2b1/PnN5/np2PK2/5P2/2rr4

#2

8 + 10

14867 BCPS Library 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qf5#
    • 1...Be6
      • 2.Qxe6#
    • 1...Bh7
      • 2.Qe6#
    • 1...Sa2
      • 2.Qc6#
    • 1...Sc2
      • 2.Qc6#
    • 1...Sd3
      • 2.Qc6#
    • 1...Sa6
      • 2.Qc6#
    • 1...Sc6
      • 2.Qxc6#
    • 1...b5
      • 2.Qc5#
  • Tries
    • 1.Qg4?
      • threat
        • 2.Qe4#
      • 1...Rxc4
        • 2.Qf5#
        • 2.Qxg5#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Bf4
        • 2.Qxg8#
      • 1...Bh7
        • 2.Qe6#
      • 1...Bxe7!
    • 1.Qb7+?
      • 1...Sc6
        • 2.Qxc6#
      • 1...Kxc4!
    • 1.Qa8+?
      • 1...Sc6
        • 2.Qxc6#
      • 1...Kxc4!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sxb6#
      • 1...Kxc4
        • 2.Sxb4#
      • 1...Rxc4
        • 2.Qd7#
      • 1...Bxe3
        • 2.Sxe3#
      • 1...Bxe7
        • 2.Sxe7#
      • 1...Sxc4
        • 2.e4#
      • 1...Sxc6
        • 2.Qxg8#
      • 1...b5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(a);SBLOCK,XS(E)::QAR2(G)
    • B(j);N_GUARD::QAB1(G),XB(j)
    • B(j);N_GUARD::QAB1(G)
    • S(e);N_GUARD::QAB1(G)
    • S(e);N_GUARD::QAB1(G),XS(e)
    • P(i);N_GUARD::QAR1(G)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • R(b);N_GUARD::QAR1(G),XR(b)
        • B(h);OGATE::QAB(G),XB(j)
        • B(j);N_GUARD::QAB1(G)
      • Refutation
        • B(h);XB(F)
    • Try
      • Q(G);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::QAB1(G),XS(e)
      • Refutation
        • K(g);S_FLIGHT,XS(E)
    • Try
      • Q(G);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::QAB1(G),XS(e)
      • Refutation
        • K(g);S_FLIGHT,XS(E)
  • Actual
    • S(H);
    • Threat
      • S(E),XP(i)
    • Vars
      • K(g);S_FLIGHT,XS(E)::QAR(G)+S(H),XS(e)
      • R(a);SBLOCK,XS(E)::QAR2(G)
      • B(h);XP(B)::S(E),XB(h)
      • B(h);XB(F)::S(H),XB(h)
      • S(c);SBLOCK,XS(E)::P(B)
      • S(e);SBLOCK,XS(H)::QAB(G),XB(j)
      • P(i);::S(E)
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