MESON Chess Problem Database

Problem Display
PID: 74766 (8/1q2p3/2p1P2K/2PkN3/P3p1Q1/2R1P3/7B/8 w - - 0 1)

Rothwell, Stephen

Kieler Nachrichten, 1994

8/1q2p3/2p1P2K/2PkN3/P3p1Q1/2R1P3/7B/8

#2

9 + 5

6114 Problemschach-Jahrbuch (1994) 1995

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qf5#
      • 1...Qc7
        • 2.Sb4#
      • 1...Qb8!
    • 1.Sg6?
      • threat
        • 2.Qf5#
      • 1...Qb8
        • 2.Sxe7#
      • 1...Qc7!
    • 1.Rd3+?
      • 1...exd3
        • 2.Qc4#
      • 1...Kxc5!
  • Keys
    • 1.Sxc6!
      • 1...Kxc6
        • 2.Qxe4#
      • 1...Qxc6
        • 2.Qf5#
      • 1...Qa6
        • 2.Sb4#
        • 2.Sxe7#
      • 1...Qa8
        • 2.Sb4#
        • 2.Sxe7#
      • 1...Qc8
        • 2.Sb4#
        • 2.Sxe7#
      • 1...Qb1
        • 2.Sxe7#
      • 1...Qb2
        • 2.Sxe7#
      • 1...Qb3
        • 2.Sxe7#
      • 1...Qb4
        • 2.Sxb4#
        • 2.Sxe7#
      • 1...Qb5
        • 2.Sxe7#
      • 1...Qb6
        • 2.Sxe7#
      • 1...Qa7
        • 2.Sb4#
      • 1...Qc7
        • 2.Sb4#
      • 1...Qd7
        • 2.Sb4#
      • 1...Qb8
        • 2.Sxe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Threat
        • QAR2(E)
      • Vars
        • Q(d);N_GUARD::S(G)
      • Refutation
        • Q(d);
    • Try
      • S(G);
      • Threat
        • QAR2(E)
      • Vars
        • Q(d);N_GUARD::S(G),XP(e)
      • Refutation
        • Q(d);
    • Try
      • R(B);CHECK
      • Vars
        • P(a);OGATE,XR(B)::QAB1(E)
      • Refutation
        • K(b);P-FLIGHT,XP(F)
  • Actual
    • S(G);XP(c)
    • Vars
      • K(b);S_FLIGHT,XS(G)::QAB(E),XP(a)
      • Q(d);P_PINP(H),SBLOCK,XS(G)::QAR2(E)
      • Q(d);N_GUARD::S(G),XP(e)
      • Q(d);N_GUARD::S(G)
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