MESON Chess Problem Database

Problem Display
PID: 198647 (8/7N/8/8/3k4/B4P2/4K3/7Q w - - 0 1)

Bacca, Romano

L'Italia Scacchistica, 1921

8/7N/8/8/3k4/B4P2/4K3/7Q

#2

5 + 1

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qd1+?
      • 1...Kc3
        • 2.Qd3#
      • 1...Kc4
        • 2.Qd3#
      • 1...Ke5!
    • 1.Qh4+?
      • 1...Kd5
        • 2.Qe4#
      • 1...Ke5
        • 2.Qe4#
      • 1...Kc3!
  • Keys
    • 1.Qb1!
      • 1...Kc3
        • 2.Qd3#
      • 1...Kc4
        • 2.Qd3#
      • 1...Kd5
        • 2.Qe4#
      • 1...Ke5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);P-FLIGHT::QAB1(A)
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