MESON Chess Problem Database

Problem Display
PID: 154694 (6N1/8/3k4/BP1p1P2/3Q4/6K1/8/3n4 w - - 0 1)

Browne, Gordon

British Chess Magazine, 1903

6N1/8/3k4/BP1p1P2/3Q4/6K1/8/3n4

#2

6 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qc7#
      • 1...Kd7
        • 2.Qc6#
      • 1...d4
        • 2.Qxd4#
      • 1...Sxc3!
    • 1.Qe3?
      • threat
        • 2.Qe7#
      • 1...Kd7
        • 2.Qe6#
      • 1...d4
        • 2.Qxd4#
      • 1...Sxe3!
    • 1.Qb6+?
      • 1...Kd7
        • 2.Qd8#
        • 2.Qc6#
        • 2.Qe6#
      • 1...Ke5!
    • 1.Qf6+?
      • 1...Kd7
        • 2.Qd8#
        • 2.Qc6#
        • 2.Qe6#
      • 1...Kc5!
    • 1.Qa7?
      • threat
        • 2.Qc7#
        • 2.Qe7#
      • 1...d4
        • 2.Qxd4#
      • 1...Ke5!
    • 1.Qg7?
      • threat
        • 2.Bb4#
        • 2.Qc7#
        • 2.Qe7#
      • 1...d4
        • 2.Qxd4#
      • 1...Kc5!
    • 1.Qb4+?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kd7!
    • 1.Qc4?
      • threat
        • 2.Qc7#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kd7
        • 2.Qc6#
      • 1...d4
        • 2.Qxd4#
      • 1...dxc4!
    • 1.Qe4?
      • threat
        • 2.Qe7#
      • 1...Kc5
        • 2.Qb4#
      • 1...Kd7
        • 2.Qe6#
      • 1...d4
        • 2.Qxd4#
      • 1...dxe4!
    • 1.Qf4+?
      • 1...Kc5
        • 2.Qb4#
      • 1...Kd7!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qe7#
      • 1...Kc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kd7
        • 2.Qd8#
      • 1...d4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • QAB1(B)
      • Vars
        • K(c);P-FLIGHT::QAB1(B)
        • P(b);OGATEB::QAR2(B),XP(b)
      • Refutation
        • S(a);XQ(B)
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • QAB1(B)
      • Vars
        • K(c);P-FLIGHT::QAB1(B)
        • P(b);OGATEB::QAR2(B),XP(b)
      • Refutation
        • S(a);XQ(B)
    • Try
      • Q(B);CHECK,N_PINP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);CHECK,N_PINP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATEB::QAR2(B),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • DUALS(3)
      • Vars
        • P(b);OGATEB::QAR2(B),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);CHECK,N_PINP(b)
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • QAB1(B)
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
        • K(c);P-FLIGHT::QAB1(B)
        • P(b);OGATEB::QAR2(B),XP(b)
      • Refutation
        • P(b);XQ(B)
    • Try
      • Q(B);N_PINP(b)
      • Threat
        • QAB1(B)
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
        • K(c);P-FLIGHT::QAB1(B)
        • P(b);OGATEB::QAR2(B),XP(b)
      • Refutation
        • P(b);XQ(B)
    • Try
      • Q(B);CHECK,N_PINP(b)
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(B);N_PINP(b)
    • Threat
      • QAB1(B)
    • Vars
      • K(c);S_FLIGHT::QAB1(B)
      • K(c);P-FLIGHT::QAR1(B)
      • P(b);OGATEB::QAR2(B),XP(b)
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