MESON Chess Problem Database

Problem Display
PID: 160205 (n7/2r1R3/3k1P2/2N3n1/p3B3/K7/8/1Q6 w - - 0 1)

Nield, Joshua

3rd Prize, British Chess Magazine 13. Ty., 1906-1907

n7/2r1R3/3k1P2/2N3n1/p3B3/K7/8/1Q6

#2

6 + 5

15 British Chess Magazine 1908

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qb4#
    • 1...Rc6
      • 2.Sb7#
    • 1...Rb7
      • 2.Sxb7#
    • 1...Rc8
      • 2.Sb7#
  • Tries
    • 1.Re6+?
      • 1...Kxc5
        • 2.Qb4#
      • 1...Sxe6!
    • 1.Qb6+?
      • 1...Rc6
        • 2.Sb7#
        • 2.Qxc6#
      • 1...Sxb6!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qd5#
      • 1...Kxc5
        • 2.Qb4#
      • 1...Rxc5
        • 2.Qd7#
      • 1...Rxb7
        • 2.Sxb7#
      • 1...Rxe7
        • 2.Qxe7#
      • 1...Sxe4
        • 2.Sxe4#
      • 1...Rc6
        • 2.Qxc6#
      • 1...Rd7
        • 2.Qc6#
      • 1...Sb6
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(A)
    • R(d);N_GUARD::S(D)
    • R(d);N_GUARD::S(D),XR(d)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(D)::QAB1(A)
      • Refutation
        • S(b);XR(F)
    • Try
      • Q(A);CHECK
      • Refutation
        • S(e);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(A)
      • R(d);OGATE,SBLOCK,XS(D)::QAR1(A)
      • R(d);XQ(A)::S(D),XR(d)
      • R(d);OGATE,XR(F)::QAB1(A),XR(d)
      • S(b);XB(C)::S(D),XS(b)
      • R(d);N_GUARD::QAR1(A),XR(d)
      • R(d);N_GUARD::QAR1(A)
      • S(e);N_GUARD::QAB1(A),XR(d)
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