MESON Chess Problem Database

Problem Display
PID: 230921 (2K3N1/3Rp3/p3k1B1/2n5/2b1N3/q1QP4/p2b2n1/8 w - - 0 1)

Jordan, James

Preston Guardian, 1882

(First published on Wed Nov 1 1882)

2K3N1/3Rp3/p3k1B1/2n5/2b1N3/q1QP4/p2b2n1/8

#2

7 + 9

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Sxc5#
    • 1...Qb2
      • 2.Sxc5#
    • 1...Qb3
      • 2.Sxc5#
    • 1...Qa4
      • 2.Sxc5#
    • 1...Be1
      • 2.Sg5#
    • 1...Bg5
      • 2.Sxg5#
    • 1...Bd5
      • 2.Rxe7#
    • 1...Se3
      • 2.Sg5#
    • 1...Sf4
      • 2.Sg5#
  • Keys
    • 1.d4!
      • threat
        • 2.Qxc4#
      • 1...Qxc3
        • 2.Sxc5#
      • 1...Bxc3
        • 2.Sg5#
      • 1...Qc1
        • 2.Sxc5#
        • 2.Qh3#
      • 1...Qb4
        • 2.Qh3#
      • 1...Qb3
        • 2.Sxc5#
      • 1...Qa4
        • 2.Sxc5#
        • 2.Qh3#
      • 1...Bf1
        • 2.d5#
      • 1...Be2
        • 2.d5#
      • 1...Bb3
        • 2.Qh3#
      • 1...Bd3
        • 2.d5#
      • 1...Bb5
        • 2.d5#
      • 1...Bd5
        • 2.Rxe7#
      • 1...Se3
        • 2.Sg5#
      • 1...Sf4
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 5
  • Sets
    • Q(d);N_GUARD::S(C),XS(f)
    • B(b);N_GUARD::S(C)
    • B(b);N_GUARD::S(C),XB(b)
    • B(e);SBLOCK::R1(E),XP(i)
    • S(c);S_CUTB(b)::S(C)
  • Actual
    • P(B);
    • Threat
      • QAB(A),XB(e)
    • Vars
      • Q(d);N_GUARD,XQ(A)::S(C),XS(f)
      • B(b);N_GUARD,XQ(A)::S(C)
      • Q(d);N_GUARD::QAB(A)
      • Q(d);N_GUARD::S(C),XS(f)
      • B(e);N_GUARD::P(B)
      • B(e);S_CUTQ(d)::QAB(A)
      • B(e);SBLOCK::R1(E),XP(i)
      • S(c);S_CUTB(b)::S(C)
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