MESON Chess Problem Database

Problem Display
PID: 170125 (7B/6NR/8/1K2k2P/2P1B3/3P2NR/7Q/8 w - - 0 1)

Appenzeller, Reinhold

Tages-Anzeiger, 1972

7B/6NR/8/1K2k2P/2P1B3/3P2NR/7Q/8

#2

11 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Se2#
      • 2.S7f5#
  • Tries
    • 1.Sf1+?
      • 1...Kd4
        • 2.Sf5#
        • 2.Se6#
        • 2.Se8#
        • 2.Qb2#
      • 1...Kf6!
    • 1.Sh1+?
      • 1...Kd4
        • 2.Sf5#
        • 2.Se6#
        • 2.Se8#
        • 2.Qb2#
      • 1...Kf6!
    • 1.S7f5+?
      • 1...Ke6
        • 2.Bd5#
        • 2.Re7#
      • 1...Kf4!
    • 1.Se8+?
      • 1...Ke6
        • 2.Bd5#
        • 2.Bf5#
      • 1...Kf4!
    • 1.Bd5?
      • 1...Kd4
        • 2.Se2#
      • 1...Kd6
        • 2.S7f5#
        • 2.Se8#
      • 1...Kf6
        • 2.Se6#
      • 1...Kf4!
    • 1.Rh6?
      • threat
        • 2.Se2#
        • 2.S3f5#
      • 1...Kd4
        • 2.Se2#
        • 2.S7f5#
      • 1...Kf4!
  • Keys
    • 1.Bf5!
      • 1...Kd4
        • 2.Se2#
      • 1...Kf4
        • 2.Se4#
      • 1...Kd6
        • 2.Se8#
      • 1...Kf6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(I);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(I);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::S(C)
        • K(a);S_FLIGHT::B(K)+S(I)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(J);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(F);
    • Vars
      • K(a);S_FLIGHT::S(C)
      • K(a);S_FLIGHT::QAB(A)+S(C)
      • K(a);S_FLIGHT::S(I)
      • K(a);S_FLIGHT::B(K)+S(I)
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