Perfect 100

The goal of the game is to fill in the cells of the grid with numbers going from 0 to 99 to form a Perfect matrix of 100. The rules are simple: move vertical, horizontal or diagonal skipping 2 cells (horizontal or vertical) or 1 cell (diagonal). 

The green cursor lets you select your next move. Press the 1st button to cycle between choices, press the 2nd button to confirm the move.

Restart the game if you get stuck and can't move.

Can you reach 99? :P

I made this for the #TweetTweetJam 10 on May 2025.  It is written in Pico-8 and the code is 500 characters long. Credit to https://thisismypassport.github.io/shrinko8/ for an excellent tool to shrink the code.

Code:

n=10_={63,51,30,11,3,15,36,55}function _init()d={}for n=0,9do d[n]={}end r,i=rnd(n)\1,rnd(n)\1d[r][i]=0c,o=1,1t()end function t()f={}if(a)return
for o=1,8do e,u=r+_[o]\n-3,i+_[o]%n-3if(not(e<0or e>=n or u<0or u>=n or d[e][u]))add(f,e*n+u)
end if(o>#f)o=1
end function _update()if(a)return
if(btnp(4))o=o%#f+1
if(btnp(5)and f[o])r,i=f[o]\n,f[o]%n d[r][i]=c a=c==99c+=1o=1t()
end function _draw()cls()for o=0,9do for f=0,9do?d[o][f]or"_",o*n,f*n,7
end end if(not a and f[o])?"█",f[o]\n*n,f[o]%n*n,3
end

And here's the code before shrinking it with the shrinko8:

w=10
f={63,51,30,11,3,15,36,55}
function _init()
 g={}
 for i=0,9 do g[i]={} end
 p,q=rnd(w)\1,rnd(w)\1
 g[p][q]=0
 c,l=1,1
 t()
end
function t()
 m={}
 if (u) return
 for i=1,8 do
 z ,r =p+f[i]\w-3,q+f[i]%w-3
 if (not(z<0 or z>=w or r<0 or r>=w or g[z][r])) add(m,z*w+r)
 end
 if (l>#m) l=1
end
function _update()
 if (u) return
 if (btnp(4)) l=l%#m+1
 if (btnp(5) and m[l]) p,q=m[l]\w,m[l]%w g[p][q]=c u=(c==99) c+=1 l=1 t()
end
function _draw()
 cls()
 for i=0,9 do
 for j=0,9 do
 ?g[i][j] or "_",i*w,j*w,7
 end
 end
 if (not u and m[l]) ?"█",m[l]\w*w,m[l]%w*w,3
end