MESON Chess Problem Database

Problem Display
PID: 44214 (8/p3B3/1p6/3Q4/p3p3/2k4b/4B3/1K6 w - - 0 1)

Meredith, William

Maryland Chess Review, 1874

8/p3B3/1p6/3Q4/p3p3/2k4b/4B3/1K6

#2

4 + 6

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Qd3#
  • Tries
    • 1.Qxe4?
      • threat
        • 2.Qd3#
        • 2.Qe3#
        • 2.Qb4#
      • 1...Kd2
        • 2.Bb4#
      • 1...Kb3
        • 2.Qc2#
        • 2.Qd3#
        • 2.Qf3#
        • 2.Qe3#
        • 2.Qb4#
        • 2.Qc4#
      • 1...a5
        • 2.Qd3#
        • 2.Qe3#
      • 1...Bf5!
    • 1.Qd2+?
      • 1...Kb3
        • 2.Qe3#
        • 2.Qb4#
        • 2.Qb2#
        • 2.Qc2#
      • 1...Kxd2!
    • 1.Qd4+?
      • 1...Kb3
        • 2.Bd1#
        • 2.Bc4#
        • 2.Qb2#
        • 2.Qe3#
        • 2.Qb4#
        • 2.Qc4#
      • 1...Kxd4!
    • 1.Qe5+?
      • 1...Kb3
        • 2.Qb2#
      • 1...Kd2!
    • 1.Qd6?
      • threat
        • 2.Qb4#
      • 1...Kb3
        • 2.Qa3#
        • 2.Qb4#
      • 1...a5!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qe3#
      • 1...Kb3
        • 2.Qe3#
      • 1...Kd4
        • 2.Bf6#
      • 1...e3
        • 2.Qxe3#

This anticipates 187111(2001)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);N_GUARD::QAR1(C)
  • Tries
    • Try
      • Q(C);XP(d)
      • Threat
        • DUALS(3)
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • B(b);P_PINQ(C)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Refutation
        • P(f);
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • K(a);P-FLIGHT::QAR(C)
      • K(a);S_FLIGHT::B(D)
      • P(d);::QAR2(C),XP(d)
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