I heard this 30 years ago. Have been waiting for a board like this. Don't even remember the end.
Any clues???
To be played slowly and sadly.
-5 +7 -7* -7 +7 -6*
-5 -7 +8 -7* -7 +7
+7 -7* -9 -9 -9 -9*
-9* -9* +11 +11 +10* -9*-9
-9 -9 +10* +10* -9* -9 +9
+9 +9 -9* -9* -9 +8 -7