MESON Chess Problem Database

Problem Display
PID: 81353 (q2N4/3BrpKp/5Rp1/p2b2kr/7N/5p2/3b2p1/4B1Q1 w - - 0 1)

Sedgwick, Stanley

The Field, 1951

(First published on Sat Oct 13 1951)

q2N4/3BrpKp/5Rp1/p2b2kr/7N/5p2/3b2p1/4B1Q1

#2

7 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Sxf3#
  • Tries
    • 1.Bxd2+?
      • 1...Kxh4
        • 2.Qf2#
        • 2.Qh2#
      • 1...Re3!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qg4#
      • 1...Rxh4
        • 2.Qxh4#
      • 1...Rxd7
        • 2.Bxd2#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...Re4
        • 2.Sxf3#
      • 1...Re6
        • 2.Sxf7#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Be4
        • 2.Qxd2#
      • 1...Be6
        • 2.Bxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(i);S_CUTB(e)::S(C),XP(c)
  • Tries
    • Try
      • B(A);CHECK,XB(a)
      • Refutation
        • R(i);P_SPINR(i)
  • Actual
    • Q(B);N_PINP(b)
    • Threat
      • QAR1(B)
    • Vars
      • R(g);OGATE,XS(C)::QAB1(B),XR(g)
      • R(i);N_GUARD,XB(E)::B(A),XB(a)
      • P(b);OGATEB::QAR(B),XQ(b)
      • P(b);OGATEB::QAR(B),XR(b)
      • R(i);S_CUTB(e)::S(C),XP(c)
      • R(i);N_GUARD,S_CUTB(e)::S(G),XP(j)
      • B(a);N_GUARD::QAB1(B),XB(a)
      • B(e);S_CUTR(i)::QAB(B),XB(a)
      • B(e);S_CUTR(i)::B(A),XB(a)
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