MESON Chess Problem Database

Problem Display
PID: 209843 (8/3k4/8/6B1/3K1Q2/8/R7/3B4 w - - 0 1)

Cocozza, Mario

Land og Folk, 1978

8/3k4/8/6B1/3K1Q2/8/R7/3B4

#2

5 + 1

5454 Near Snap 2020
15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Bg4#
    • 1...Ke8
      • 2.Ba4#
  • Tries
    • 1.Kc5?
      • 1...Ke6
        • 2.Bg4#
      • 1...Ke8
        • 2.Ba4#
      • 1...Kc8!
    • 1.Kd5?
      • 1...Ke8
        • 2.Ba4#
      • 1...Kc8!
    • 1.Bf3?
      • 1...Ke6
        • 2.Bg4#
      • 1...Ke8
        • 2.Bc6#
      • 1...Kc8!
    • 1.Ba4+?
      • 1...Ke6
        • 2.Re2#
        • 2.Qf6#
      • 1...Kc8!
    • 1.Bg4+?
      • 1...Ke8
        • 2.Re2#
        • 2.Ra8#
      • 1...Kc6!
    • 1.Rc2?
      • 1...Ke6
        • 2.Bg4#
      • 1...Ke8!
    • 1.Ra6?
      • 1...Ke8
        • 2.Ba4#
      • 1...Kc8!
    • 1.Ra7+?
      • 1...Ke6
        • 2.Bb3#
        • 2.Bg4#
        • 2.Re7#
        • 2.Qe5#
        • 2.Qf6#
      • 1...Kc8
        • 2.Bg4#
        • 2.Qc7#
        • 2.Qf8#
      • 1...Ke8
        • 2.Ba4#
        • 2.Bh5#
        • 2.Qb8#
        • 2.Qf7#
      • 1...Kc6!
    • 1.Ra8?
      • 1...Ke6
        • 2.Bg4#
      • 1...Kc6!
    • 1.Qc7+?
      • 1...Ke6
        • 2.Bg4#
      • 1...Ke8
        • 2.Ra8#
        • 2.Qe7#
      • 1...Kxc7!
    • 1.Qb8?
      • 1...Kc6
        • 2.Ba4#
      • 1...Ke6!
    • 1.Qf7+?
      • 1...Kd6
        • 2.Ra6#
      • 1...Kc8
        • 2.Ra8#
      • 1...Kc6!
  • Keys
    • 1.Rb2!
      • 1...Kc6
        • 2.Ba4#
      • 1...Ke6
        • 2.Bg4#
      • 1...Kc8
        • 2.Bg4#
      • 1...Ke8
        • 2.Ba4#

Anticipated by 48622(0000), 2847(1890), 150335(1924), 163326(1926)

This anticipates 215938(2019)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(A)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(B)
        • K(a);S_FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(a);S_FLIGHT::B(A)
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