diff --git a/EH22-bunny/cross-easy/bunny-cross.svg b/EH22-bunny/cross-easy/bunny-cross.svg
deleted file mode 100644
index 12156a7..0000000
--- a/EH22-bunny/cross-easy/bunny-cross.svg
+++ /dev/null
@@ -1,9 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="136.8mm" height="136.8mm" viewBox="-6.4 -6.4 143.20000000000002 143.20000000000002" xmlns:xlink="http://www.w3.org/1999/xlink"><defs><g id="sm11"><g transform="scale(0.004) translate(250,250)"><polygon fill="none" stroke="#111" stroke-width="40" points="118,250 250,0 382,250 250,500 "/></g></g><g id="c0"><use xlink:href="#sm11" /></g><g id="sm31"><g transform="scale(0.004) translate(250,250)"><path fill="#111" fill-rule="nonzero" d="M250 94c31,-63 63,-94 125,-94 69,0 125,56 125,125 0,125 -125,250 -250,375 -125,-125 -250,-250 -250,-375 0,-69 56,-125 125,-125 63,0 94,31 125,94z"/></g></g><g id="c1"><use xlink:href="#sm31" /></g></defs><g>
-      <rect x="0" y="0" width="124" height="124" fill="white"/>
-          </g><g><use xlink:href="#c0" transform="translate(28,4)" /><use xlink:href="#c0" transform="translate(24,8)" /><use xlink:href="#c0" transform="translate(32,8)" /><use xlink:href="#c0" transform="translate(36,12)" /><use xlink:href="#c0" transform="translate(16,16)" /><use xlink:href="#c0" transform="translate(20,16)" /><use xlink:href="#c0" transform="translate(36,16)" /><use xlink:href="#c0" transform="translate(12,20)" /><use xlink:href="#c0" transform="translate(24,20)" /><use xlink:href="#c0" transform="translate(36,20)" /><use xlink:href="#c0" transform="translate(12,24)" /><use xlink:href="#c0" transform="translate(28,24)" /><use xlink:href="#c0" transform="translate(40,24)" /><use xlink:href="#c0" transform="translate(44,24)" /><use xlink:href="#c0" transform="translate(16,28)" /><use xlink:href="#c0" transform="translate(48,28)" /><use xlink:href="#c0" transform="translate(20,32)" /><use xlink:href="#c0" transform="translate(24,32)" /><use xlink:href="#c0" transform="translate(52,32)" /><use xlink:href="#c0" transform="translate(28,36)" /><use xlink:href="#c0" transform="translate(48,36)" /><use xlink:href="#c0" transform="translate(24,40)" /><use xlink:href="#c0" transform="translate(48,40)" /><use xlink:href="#c1" transform="translate(84,40)" /><use xlink:href="#c1" transform="translate(88,40)" /><use xlink:href="#c1" transform="translate(92,40)" /><use xlink:href="#c1" transform="translate(96,40)" /><use xlink:href="#c0" transform="translate(20,44)" /><use xlink:href="#c0" transform="translate(48,44)" /><use xlink:href="#c1" transform="translate(80,44)" /><use xlink:href="#c1" transform="translate(100,44)" /><use xlink:href="#c0" transform="translate(16,48)" /><use xlink:href="#c0" transform="translate(48,48)" /><use xlink:href="#c1" transform="translate(76,48)" /><use xlink:href="#c0" transform="translate(88,48)" /><use xlink:href="#c1" transform="translate(104,48)" /><use xlink:href="#c0" transform="translate(12,52)" /><use xlink:href="#c0" transform="translate(48,52)" /><use xlink:href="#c0" transform="translate(92,52)" /><use xlink:href="#c1" transform="translate(108,52)" /><use xlink:href="#c0" transform="translate(8,56)" /><use xlink:href="#c0" transform="translate(52,56)" /><use xlink:href="#c0" transform="translate(88,56)" /><use xlink:href="#c1" transform="translate(108,56)" /><use xlink:href="#c0" transform="translate(8,60)" /><use xlink:href="#c0" transform="translate(48,60)" /><use xlink:href="#c1" transform="translate(68,60)" /><use xlink:href="#c0" transform="translate(92,60)" /><use xlink:href="#c1" transform="translate(112,60)" /><use xlink:href="#c0" transform="translate(8,64)" /><use xlink:href="#c0" transform="translate(48,64)" /><use xlink:href="#c1" transform="translate(68,64)" /><use xlink:href="#c0" transform="translate(88,64)" /><use xlink:href="#c1" transform="translate(112,64)" /><use xlink:href="#c0" transform="translate(8,68)" /><use xlink:href="#c0" transform="translate(48,68)" /><use xlink:href="#c1" transform="translate(64,68)" /><use xlink:href="#c0" transform="translate(84,68)" /><use xlink:href="#c1" transform="translate(116,68)" /><use xlink:href="#c0" transform="translate(12,72)" /><use xlink:href="#c0" transform="translate(28,72)" /><use xlink:href="#c0" transform="translate(52,72)" /><use xlink:href="#c1" transform="translate(64,72)" /><use xlink:href="#c0" transform="translate(88,72)" /><use xlink:href="#c0" transform="translate(104,72)" /><use xlink:href="#c1" transform="translate(116,72)" /><use xlink:href="#c0" transform="translate(8,76)" /><use xlink:href="#c0" transform="translate(16,76)" /><use xlink:href="#c0" transform="translate(32,76)" /><use xlink:href="#c0" transform="translate(44,76)" /><use xlink:href="#c0" transform="translate(56,76)" /><use xlink:href="#c1" transform="translate(64,76)" /><use xlink:href="#c0" transform="translate(92,76)" /><use xlink:href="#c0" transform="translate(100,76)" /><use xlink:href="#c0" transform="translate(108,76)" /><use xlink:href="#c1" transform="translate(116,76)" /><use xlink:href="#c0" transform="translate(4,80)" /><use xlink:href="#c0" transform="translate(16,80)" /><use xlink:href="#c0" transform="translate(32,80)" /><use xlink:href="#c0" transform="translate(40,80)" /><use xlink:href="#c0" transform="translate(48,80)" /><use xlink:href="#c0" transform="translate(52,80)" /><use xlink:href="#c1" transform="translate(64,80)" /><use xlink:href="#c0" transform="translate(96,80)" /><use xlink:href="#c0" transform="translate(108,80)" /><use xlink:href="#c1" transform="translate(116,80)" /><use xlink:href="#c0" transform="translate(8,84)" /><use xlink:href="#c0" transform="translate(20,84)" /><use xlink:href="#c0" transform="translate(32,84)" /><use xlink:href="#c0" transform="translate(40,84)" /><use xlink:href="#c1" transform="translate(64,84)" /><use xlink:href="#c0" transform="translate(108,84)" /><use xlink:href="#c1" transform="translate(116,84)" /><use xlink:href="#c0" transform="translate(24,88)" /><use xlink:href="#c0" transform="translate(36,88)" /><use xlink:href="#c0" transform="translate(44,88)" /><use xlink:href="#c1" transform="translate(64,88)" /><use xlink:href="#c1" transform="translate(116,88)" /><use xlink:href="#c0" transform="translate(28,92)" /><use xlink:href="#c0" transform="translate(32,92)" /><use xlink:href="#c0" transform="translate(40,92)" /><use xlink:href="#c1" transform="translate(64,92)" /><use xlink:href="#c1" transform="translate(116,92)" /><use xlink:href="#c1" transform="translate(64,96)" /><use xlink:href="#c0" transform="translate(72,96)" /><use xlink:href="#c0" transform="translate(76,96)" /><use xlink:href="#c1" transform="translate(116,96)" /><use xlink:href="#c1" transform="translate(64,100)" /><use xlink:href="#c0" transform="translate(76,100)" /><use xlink:href="#c0" transform="translate(80,100)" /><use xlink:href="#c0" transform="translate(84,100)" /><use xlink:href="#c1" transform="translate(116,100)" /><use xlink:href="#c1" transform="translate(64,104)" /><use xlink:href="#c0" transform="translate(84,104)" /><use xlink:href="#c1" transform="translate(116,104)" /><use xlink:href="#c1" transform="translate(68,108)" /><use xlink:href="#c0" transform="translate(80,108)" /><use xlink:href="#c1" transform="translate(112,108)" /><use xlink:href="#c1" transform="translate(72,112)" /><use xlink:href="#c1" transform="translate(108,112)" /><use xlink:href="#c1" transform="translate(76,116)" /><use xlink:href="#c1" transform="translate(80,116)" /><use xlink:href="#c1" transform="translate(84,116)" /><use xlink:href="#c1" transform="translate(88,116)" /><use xlink:href="#c1" transform="translate(92,116)" /><use xlink:href="#c1" transform="translate(96,116)" /><use xlink:href="#c1" transform="translate(100,116)" /><use xlink:href="#c1" transform="translate(104,116)" /></g><g>
-      <path d="M 4 0 L 4 124 M 8 0 L 8 124 M 12 0 L 12 124 M 16 0 L 16 124 M 20 0 L 20 124 M 24 0 L 24 124 M 28 0 L 28 124 M 32 0 L 32 124 M 36 0 L 36 124 M 44 0 L 44 124 M 48 0 L 48 124 M 52 0 L 52 124 M 56 0 L 56 124 M 60 0 L 60 124 M 64 0 L 64 124 M 68 0 L 68 124 M 72 0 L 72 124 M 76 0 L 76 124 M 84 0 L 84 124 M 88 0 L 88 124 M 92 0 L 92 124 M 96 0 L 96 124 M 100 0 L 100 124 M 104 0 L 104 124 M 108 0 L 108 124 M 112 0 L 112 124 M 116 0 L 116 124 M 124 0 L 124 124 M 0 4 L 124 4 M 0 8 L 124 8 M 0 12 L 124 12 M 0 16 L 124 16 M 0 20 L 124 20 M 0 24 L 124 24 M 0 28 L 124 28 M 0 32 L 124 32 M 0 36 L 124 36 M 0 44 L 124 44 M 0 48 L 124 48 M 0 52 L 124 52 M 0 56 L 124 56 M 0 60 L 124 60 M 0 64 L 124 64 M 0 68 L 124 68 M 0 72 L 124 72 M 0 76 L 124 76 M 0 84 L 124 84 M 0 88 L 124 88 M 0 92 L 124 92 M 0 96 L 124 96 M 0 100 L 124 100 M 0 104 L 124 104 M 0 108 L 124 108 M 0 112 L 124 112 M 0 116 L 124 116 M 0 124 L 124 124" stroke="rgb(80,80,80)" stroke-width="0.27" fill="none" stroke-linecap="round" />
-      <path d="M 0 0 L 0 124 M 40 0 L 40 124 M 80 0 L 80 124 M 120 0 L 120 124 M 0 0 L 124 0 M 0 40 L 124 40 M 0 80 L 124 80 M 0 120 L 124 120" stroke="rgb(0,0,0)" stroke-width="0.54" fill="none" stroke-linecap="round" />
-      <text x="40" y="-1.52" font-size="4" font-family="sans-serif" text-anchor="middle">10</text><text x="80" y="-1.52" font-size="4" font-family="sans-serif" text-anchor="middle">20</text><text x="120" y="-1.52" font-size="4" font-family="sans-serif" text-anchor="middle">30</text><text x="-1.52" y="41.16" font-size="4" font-family="sans-serif" text-anchor="end">10</text><text x="-1.52" y="81.16" font-size="4" font-family="sans-serif" text-anchor="end">20</text><text x="-1.52" y="121.16" font-size="4" font-family="sans-serif" text-anchor="end">30</text>
-      </g><g>
-      <path d="M 62 -0.3 L 61.16 -1.4 L 62.84 -1.4 L 62 -0.3 M 62 124.3 L 61.16 125.7 L 62.84 125.7 L 62 124.3M -0.3 62 L -1.4 61.16 L -1.4 62.84 L -0.3 62 M 124.3 62 L 125.7 61.16 L 125.7 62.84 L 124.3 62" stroke="rgb(80,0,0)" stroke-width="0.59" fill="none" stroke-linecap="round" />
-      </g><g></g></svg>
\ No newline at end of file