MESON Chess Problem Database

Problem Display
PID: 54220 (1Q3N2/p1B5/P7/2Pk4/2Rp4/4p3/2N3P1/2R1K3 w - - 0 1)

Fellows, Arthur G

1st Prize, Birmingham Mercury, 0000

1Q3N2/p1B5/P7/2Pk4/2Rp4/4p3/2N3P1/2R1K3

#2

10 + 4

58 Tijdschrift vd NSB 1895
187 The Chess Bouquet 1897

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Sb4#
      • 2.Qb7#
    • 1...d3
      • 2.Sb4#
  • Tries
    • 1.Sa1?
      • threat
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kc6
        • 2.Qb7#
      • 1...Ke4!
    • 1.Sa3?
      • threat
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kc6
        • 2.Qb7#
      • 1...Ke4!
    • 1.Sxe3+?
      • 1...Kc6
        • 2.Qb7#
      • 1...dxe3
        • 2.Qb7#
        • 2.Qa8#
      • 1...Ke4!
    • 1.Rxd4+?
      • 1...Kc6
        • 2.Sb4#
      • 1...Kxc5!
    • 1.Qb5?
      • threat
        • 2.Rxd4#
      • 1...d3
        • 2.Sxe3#
        • 2.Sb4#
        • 2.Rd4#
        • 2.c6#
      • 1...Ke4!
    • 1.Qc8?
      • threat
        • 2.Qe6#
      • 1...Ke4
        • 2.Rxd4#
      • 1...Kc6
        • 2.Qb7#
        • 2.Qd7#
      • 1...Kxc4!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Sb4#
      • 1...Kxc4
        • 2.Sxe3#
      • 1...Ke4
        • 2.Sb4#
      • 1...Kc6
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(b);::S(C)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);S_FLIGHT::QAB1(I)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);S_FLIGHT::QAB1(I)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • S(C);CHECK,XP(a)
      • Vars
        • K(c);S_FLIGHT::QAB1(I)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • R(E);CHECK,XP(b)
      • Vars
        • K(c);S_FLIGHT::S(C)
      • Refutation
        • K(c);P-FLIGHT,XP(F)
    • Try
      • Q(I);
      • Threat
        • R1(E),XP(b)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • Q(I);
      • Threat
        • QAB1(I)
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::R1(E),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
  • Actual
    • Q(I);
    • Threat
      • S(C)
    • Vars
      • K(c);S_FLIGHT,XR(E)::R(A)+S(C),DCHECK,XP(a)
      • K(c);P_SPINP(b),S_FLIGHT::QAB(I)+S(C)
      • K(c);S_FLIGHT::QAB1(I)
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