Areal cycle

A special case of the closed walk where all visited squares (except first and last) are different and not all of them belong to the same rank, file, or diagonal.

See also: Closed walk; Linear cycle; Tempo rundlauf.

Alias: Round-trip; Rundlauf (Ger.).

Linss, Torsten

Paliulionis, Viktoras

Die Schwalbe, 2020

Example: Areal cycle
h#8.5  (2+5)

1...Bh4 2.Kd6 Bd8 3.g5 Ba5 4.g4 Bd2 5.Bg5 Be3 6.Rf5 Bf2 7.Ke5 Bh4 8.Kf4 Kf2 9.Re4 Bg3#

6-point captureless tempo Rundlauf of wB.

View in Helpmate Analyzer

FEN: 8/2k3p1/8/8/3r1b2/6B1/5r2/4K3

External links:

Ott, Markus Johannes

Rehm, Hans Peter

feenschach, 2007

Spec. Prize

Example: Areal cycle
h#5.5  (2+6)

1...Kh2 2.Bd4 Kg2 3.e3 Kg3+ 4.Re4 Kf3 5.Re5 Kg2 6.Ke4 Kg3#

wK Rundlauf (2x).

View in Helpmate Analyzer

FEN: 8/8/8/3k1b2/4pr2/3rb1K1/8/7B

External links:

Ott, Markus Johannes

feenschach, 1993

3rd HM

Example: Areal cycle
h#4 2.1... (5+6)

1.Qf4 Bg6 2.Bd1 Be8 3.Ke4 Ba4 4.Bf3 Bc2#
1.Kf4 Bf6 2.Bh6 Be7 3.Ke5 Bf8 4.Bf4 Bg7#

wB Rundlauf (2x).

View in Helpmate Analyzer

FEN: K4b2/6B1/3qp3/8/b1P5/4pk2/P1B5/8

External links:

Luce, S├ębastien

Die Schwalbe, TT-214, 2019

2nd HM

Example: Areal cycle
h#4.5 2.1... (4+8)

1...Sf6 2.Sg5 Sxh5 3.Kf3 Sf4 4.Kg4 Sd5 5.Kh5 Sf6#
1...Sc7 2.Kd3 Sxa6 3.Kc4 Sb4 4.Kb5 Sd5 5.Ka6 Sc7#

wS Rundlauf (2x).

View in Helpmate Analyzer

FEN: 8/pb4K1/p1p5/p1PN3q/8/5nP1/4k3/8

External links: