References

[1] Zalman Rubinstein: ``Chess printing via Metafont and TEX'', TUGboat Vol. 10, No. 2.
[2] Iwamoto Kaoru, 9 dan: ``Go for beginners'', Ishi Press, Inc., Tokyo, Japan.
[3] Janusz Kraszek: ``Świat Go'', COK, Warsaw 1989 (in Polish).