MESON Chess Problem Database

Problem Display
PID: 49419 (2N5/1p6/b5p1/3Bk1p1/4P1p1/6P1/8/2K3Q1 w - - 0 1)

Gold, Samuel

Source?, 0000

2N5/1p6/b5p1/3Bk1p1/4P1p1/6P1/8/2K3Q1

#2

6 + 6

5166 200 Schachaufgaben 1883
5454 Near Snap 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qd4#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Qa1#
      • 1...Kf6
        • 2.Qd4#
        • 2.Qa1#
      • 1...Bf1!
    • 1.Qh2?
      • threat
        • 2.Qb2#
        • 2.Qh8#
      • 1...Kf6
        • 2.Qb2#
        • 2.Qh8#
      • 1...Be2
        • 2.Qh8#
      • 1...Kd4!
    • 1.Qe3?
      • threat
        • 2.Qc3#
      • 1...Kf6
        • 2.Qd4#
        • 2.Qc3#
      • 1...Bd3!
    • 1.Qc5?
      • threat
        • 2.Qc3#
      • 1...Kf6
        • 2.Qd4#
        • 2.Qe7#
        • 2.Qc3#
      • 1...Bc4!
    • 1.Qe1?
      • threat
        • 2.Qc3#
      • 1...Kf6
        • 2.Qc3#
      • 1...Kd4!
    • 1.Qh1?
      • threat
        • 2.Qh8#
      • 1...Kf6
        • 2.Qh8#
      • 1...Kd4!
  • Keys
    • 1.Qa7!
      • 1...Kf6
        • 2.Qd4#
      • 1...b6
        • 2.Qg7#
      • 1...Bf1
        • 2.Qa1#
      • 1...Be2
        • 2.Qa1#
      • 1...Bd3
        • 2.Qa1#
      • 1...Bc4
        • 2.Qa1#
      • 1...Bb5
        • 2.Qa1#
      • 1...b5
        • 2.Qg7#

This anticipates 5028(1897)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB(B)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAB(B)
      • Refutation
        • B(d);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(d);::QAB(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Refutation
        • B(d);
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Refutation
        • B(d);
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Vars
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Vars
        • K(b);S_FLIGHT::QAB(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT::QAB(B)
      • P(f);OGATE::QAB(B)
      • B(d);OGATE::QAB(B)
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