MESON Chess Problem Database

Problem Display
PID: 224572 (7N/Nb1B4/pQPkq2p/R6P/1pP3p1/bP1K2p1/2P1P1P1/3RB3 w - - 0 1)

Lupton, James Money-Kyrle

The Field, 1895

(First published on Sat Aug 31 1895)

7N/Nb1B4/pQPkq2p/R6P/1pP3p1/bP1K2p1/2P1P1P1/3RB3

#2

15 + 9

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qe7
      • 2.Rd5#
    • 1...Bc1
      • 2.Bxb4#
    • 1...Bb2
      • 2.Bxb4#
    • 1...Ba8
      • 2.Sc8#
    • 1...Bc8
      • 2.Sxc8#
  • Keys
    • 1.Qd8!
      • 1...Qxc4+
        • 2.Kxc4#
      • 1...Qd5+
        • 2.Rxd5#
      • 1...Qf5+
        • 2.Bxf5#
      • 1...Qxe2+
        • 2.Kxe2#
      • 1...Qe3+
        • 2.Kxe3#
      • 1...Qe4+
        • 2.Kxe4#
      • 1...Qg6+
        • 2.Bf5#
      • 1...Qxd7
        • 2.Qxd7#
      • 1...Bxc6
        • 2.Sc8#
      • 1...Qf7
        • 2.Sxf7#
      • 1...Qg8
        • 2.Bxg3#
      • 1...Qe5
        • 2.Sf7#
        • 2.Bxg4#
        • 2.Bf5#
        • 2.Bc8#
      • 1...Qf6
        • 2.Rd5#
      • 1...Qe7
        • 2.Rd5#
        • 2.Qb8#
      • 1...Qe8
        • 2.Rd5#
      • 1...Bc1
        • 2.Bxb4#
      • 1...Bb2
        • 2.Bxb4#
      • 1...Ba8
        • 2.Sc8#
      • 1...Bc8
        • 2.Sxc8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 1
  • Sets
    • Q(g);N_GUARD,SBLOCK::R1(I)
    • B(a);N_GUARD::B(B),XP(c)
    • B(i);N_GUARD::S(M)
    • B(i);N_GUARD::S(M),XB(i)
  • Actual
    • Q(K);
    • Vars
      • Q(g);CHECK,XP(H)::R(A)+K(G),XQ(g)
      • Q(g);CHECK,N_GUARD::R1(I),XQ(g)
      • Q(g);CHECK,OGATE::QAR(K)+B(N),XQ(g)
      • Q(g);CHECK,XP(D)::R(A)+K(G),XQ(g)
      • Q(g);CHECK::R(A)+K(G),XQ(g)
      • Q(g);CHECK,OGATE::QAR(K)+B(N)
      • Q(g);OGATE,P_SPINQ(g),XB(N)::QAR1(K),XQ(g)
      • B(i);N_GUARD,XP(L)::S(M)
      • Q(g);N_GUARD::S(O),XQ(g)
      • Q(g);N_GUARD::B(B),XP(b)
      • Q(g);N_GUARD::R1(I)
      • B(a);N_GUARD::B(B),XP(c)
      • B(i);N_GUARD::S(M)
      • B(i);N_GUARD::S(M),XB(i)
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