MESON Chess Problem Database

Problem Display
PID: 6385 (8/K1PP2R1/2p2q2/4k1P1/8/1QR2pNP/BBN1P3/1n6 w - - 0 1)

Hume, George

HM., Chess Amateur (The), 1929

8/K1PP2R1/2p2q2/4k1P1/8/1QR2pNP/BBN1P3/1n6

#2

13 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Rxf3#
    • 1...Qf4
      • 2.Qe6#
  • Tries
    • 1.Rd3+?
      • 1...Kf4
        • 2.Rxf3#
      • 1...Sc3!
    • 1.Re3+?
      • 1...Kf4
        • 2.Rxf3#
      • 1...Kd6!
    • 1.Rc5+?
      • 1...Kf4
        • 2.Qxf3#
      • 1...Kd6!
    • 1.Rxc6+?
      • 1...Kf4
        • 2.Qxf3#
      • 1...Sc3!
    • 1.Qd5+?
      • 1...Kf4
        • 2.Sh5#
        • 2.Rxf3#
      • 1...cxd5!
    • 1.Qe6+?
      • 1...Kf4
        • 2.Sh5#
        • 2.Rxf3#
      • 1...Qxe6!
    • 1.Qb4?
      • threat
        • 2.Re3#
        • 2.Qd4#
      • 1...Sxc3
        • 2.Bxc3#
        • 2.Qd4#
      • 1...Qf4
        • 2.Re3#
        • 2.Re7#
        • 2.Qc5#
        • 2.Qe7#
      • 1...Qd6
        • 2.Re3#
        • 2.Rc5#
        • 2.Qe4#
      • 1...c5!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qd4#
      • 1...Kf4
        • 2.Rxf3#
      • 1...Kd6
        • 2.Rxc6#
      • 1...Qf4
        • 2.Qc5#
      • 1...Qd6
        • 2.Qe3#
      • 1...c5
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::R1(F),XP(b)
    • Q(e);N_GUARD,SBLOCK::QAR1(E)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(c);S_FLIGHT::R1(F),XP(b)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • R(F);CHECK
      • Vars
        • K(c);S_FLIGHT::R1(F),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(E),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(F);CHECK,XP(d)
      • Vars
        • K(c);S_FLIGHT::QAR1(E),XP(b)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(E);CHECK
      • Refutation
        • P(d);XQ(E)
    • Try
      • Q(E);CHECK
      • Refutation
        • Q(e);XQ(E)
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Refutation
        • P(d);
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
    • Vars
      • K(c);S_FLIGHT::R1(F),XP(b)
      • K(c);P_SPINP(d),S_FLIGHT::R1(F),XP(d)
      • Q(e);SBLOCK::QAR2(E)
      • P(d);OGATE::QAB1(E),XQ(e)
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