function Board()
lengthy=4;
for ii=2:lengthy+1
for jj=2:lengthy+1
rectangle('Position', [0+ii 0+jj 1 1],'linewidth',0.5,'edgecolor','c');
end
end
for ii=1:2
for jj=1:2
rectangle('Position', [-2+ii 2+jj 1 1],'linewidth',0.5,'edgecolor','c');
end
end
rectangle('Position', [2 2 lengthy lengthy],'linewidth',2,'edgecolor','c');
axis([-2 10 -1 4]);
title('Tromino','fontsize',18,'color','m');
axis equal
axis off
set(gcf,'Resize','off');