MESON Chess Problem Database

Problem Display
PID: 260947 (1n3N2/1p1p4/pB1p1K2/P2k3p/6bR/8/2P5/1N3B2 w - - 0 1)

Jonas, J

Neue Zurcher Zeitung, 1940

1n3N2/1p1p4/pB1p1K2/P2k3p/6bR/8/2P5/1N3B2

#2

8 + 8

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Bg2#
    • 1...Sc6
      • 2.Sc3#
  • Tries
    • 1.Bg2+?
      • 1...Bf3
        • 2.Bxf3#
      • 1...Kc4!
  • Keys
    • 1.Sg6!
      • 1...Ke4
        • 2.Bg2#
      • 1...Kc6
        • 2.Se7#
      • 1...Bd1
        • 2.Se7#
      • 1...Be2
        • 2.Se7#
      • 1...Bf3
        • 2.Se7#
      • 1...Bh3
        • 2.Se7#
      • 1...Bf5
        • 2.Se7#
      • 1...Be6
        • 2.Se7#
        • 2.Bg2#
      • 1...Sc6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::B(B)
    • S(h);SBLOCK::S(A)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::B(B),XB(a)
      • Refutation
        • K(b);P_SPINB(a),S_FLIGHT
  • Actual
    • S(H);
    • Vars
      • K(b);N_GUARD,P_SPINB(a),S_FLIGHT::B(B)
      • K(b);N_GUARD,S_FLIGHT::S(H)
      • B(a);::S(H)
      • S(h);SBLOCK::S(A)
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