Number Place / Expert
Number Place Expert
Top-level dense puzzles that may require chain-based logic.
Solved 0 / 300
Quick Start
Guides for This Difficulty
Review the techniques that fit this level first, then move into the archive and practice them on real puzzles.
Use This as a Learning Course
This archive is not only a list of puzzle numbers. Use three puzzles as one practice set and keep the review loop fixed.
Before solving
Choose one technique from the guides for this level.
During the puzzle
Before using a hint, explain whether the clue comes from a row, column, or box.
After solving
Pick the technique that slowed you down and move to the next puzzle or guide.
Puzzle Archive (300)
Expert 001 Solved Expert 002 Solved Expert 003 Solved Expert 004 Solved Expert 005 Solved Expert 006 Solved Expert 007 Solved Expert 008 Solved Expert 009 Solved Expert 010 Solved Expert 011 Solved Expert 012 Solved Expert 013 Solved Expert 014 Solved Expert 015 Solved Expert 016 Solved Expert 017 Solved Expert 018 Solved Expert 019 Solved Expert 020 Solved Expert 021 Solved Expert 022 Solved Expert 023 Solved Expert 024 Solved Expert 025 Solved Expert 026 Solved Expert 027 Solved Expert 028 Solved Expert 029 Solved Expert 030 Solved Expert 031 Solved Expert 032 Solved Expert 033 Solved Expert 034 Solved Expert 035 Solved Expert 036 Solved Expert 037 Solved Expert 038 Solved Expert 039 Solved Expert 040 Solved Expert 041 Solved Expert 042 Solved Expert 043 Solved Expert 044 Solved Expert 045 Solved Expert 046 Solved Expert 047 Solved Expert 048 Solved Expert 049 Solved Expert 050 Solved Expert 051 Solved Expert 052 Solved Expert 053 Solved Expert 054 Solved Expert 055 Solved Expert 056 Solved Expert 057 Solved Expert 058 Solved Expert 059 Solved Expert 060 Solved Expert 061 Solved Expert 062 Solved Expert 063 Solved Expert 064 Solved Expert 065 Solved Expert 066 Solved Expert 067 Solved Expert 068 Solved Expert 069 Solved Expert 070 Solved Expert 071 Solved Expert 072 Solved Expert 073 Solved Expert 074 Solved Expert 075 Solved Expert 076 Solved Expert 077 Solved Expert 078 Solved Expert 079 Solved Expert 080 Solved Expert 081 Solved Expert 082 Solved Expert 083 Solved Expert 084 Solved Expert 085 Solved Expert 086 Solved Expert 087 Solved Expert 088 Solved Expert 089 Solved Expert 090 Solved Expert 091 Solved Expert 092 Solved Expert 093 Solved Expert 094 Solved Expert 095 Solved Expert 096 Solved Expert 097 Solved Expert 098 Solved Expert 099 Solved Expert 100 Solved Expert 101 Solved Expert 102 Solved Expert 103 Solved Expert 104 Solved Expert 105 Solved Expert 106 Solved Expert 107 Solved Expert 108 Solved Expert 109 Solved Expert 110 Solved Expert 111 Solved Expert 112 Solved Expert 113 Solved Expert 114 Solved Expert 115 Solved Expert 116 Solved Expert 117 Solved Expert 118 Solved Expert 119 Solved Expert 120 Solved Expert 121 Solved Expert 122 Solved Expert 123 Solved Expert 124 Solved Expert 125 Solved Expert 126 Solved Expert 127 Solved Expert 128 Solved Expert 129 Solved Expert 130 Solved Expert 131 Solved Expert 132 Solved Expert 133 Solved Expert 134 Solved Expert 135 Solved Expert 136 Solved Expert 137 Solved Expert 138 Solved Expert 139 Solved Expert 140 Solved Expert 141 Solved Expert 142 Solved Expert 143 Solved Expert 144 Solved Expert 145 Solved Expert 146 Solved Expert 147 Solved Expert 148 Solved Expert 149 Solved Expert 150 Solved Expert 151 Solved Expert 152 Solved Expert 153 Solved Expert 154 Solved Expert 155 Solved Expert 156 Solved Expert 157 Solved Expert 158 Solved Expert 159 Solved Expert 160 Solved Expert 161 Solved Expert 162 Solved Expert 163 Solved Expert 164 Solved Expert 165 Solved Expert 166 Solved Expert 167 Solved Expert 168 Solved Expert 169 Solved Expert 170 Solved Expert 171 Solved Expert 172 Solved Expert 173 Solved Expert 174 Solved Expert 175 Solved Expert 176 Solved Expert 177 Solved Expert 178 Solved Expert 179 Solved Expert 180 Solved Expert 181 Solved Expert 182 Solved Expert 183 Solved Expert 184 Solved Expert 185 Solved Expert 186 Solved Expert 187 Solved Expert 188 Solved Expert 189 Solved Expert 190 Solved Expert 191 Solved Expert 192 Solved Expert 193 Solved Expert 194 Solved Expert 195 Solved Expert 196 Solved Expert 197 Solved Expert 198 Solved Expert 199 Solved Expert 200 Solved Expert 201 Solved Expert 202 Solved Expert 203 Solved Expert 204 Solved Expert 205 Solved Expert 206 Solved Expert 207 Solved Expert 208 Solved Expert 209 Solved Expert 210 Solved Expert 211 Solved Expert 212 Solved Expert 213 Solved Expert 214 Solved Expert 215 Solved Expert 216 Solved Expert 217 Solved Expert 218 Solved Expert 219 Solved Expert 220 Solved Expert 221 Solved Expert 222 Solved Expert 223 Solved Expert 224 Solved Expert 225 Solved Expert 226 Solved Expert 227 Solved Expert 228 Solved Expert 229 Solved Expert 230 Solved Expert 231 Solved Expert 232 Solved Expert 233 Solved Expert 234 Solved Expert 235 Solved Expert 236 Solved Expert 237 Solved Expert 238 Solved Expert 239 Solved Expert 240 Solved Expert 241 Solved Expert 242 Solved Expert 243 Solved Expert 244 Solved Expert 245 Solved Expert 246 Solved Expert 247 Solved Expert 248 Solved Expert 249 Solved Expert 250 Solved Expert 251 Solved Expert 252 Solved Expert 253 Solved Expert 254 Solved Expert 255 Solved Expert 256 Solved Expert 257 Solved Expert 258 Solved Expert 259 Solved Expert 260 Solved Expert 261 Solved Expert 262 Solved Expert 263 Solved Expert 264 Solved Expert 265 Solved Expert 266 Solved Expert 267 Solved Expert 268 Solved Expert 269 Solved Expert 270 Solved Expert 271 Solved Expert 272 Solved Expert 273 Solved Expert 274 Solved Expert 275 Solved Expert 276 Solved Expert 277 Solved Expert 278 Solved Expert 279 Solved Expert 280 Solved Expert 281 Solved Expert 282 Solved Expert 283 Solved Expert 284 Solved Expert 285 Solved Expert 286 Solved Expert 287 Solved Expert 288 Solved Expert 289 Solved Expert 290 Solved Expert 291 Solved Expert 292 Solved Expert 293 Solved Expert 294 Solved Expert 295 Solved Expert 296 Solved Expert 297 Solved Expert 298 Solved Expert 299 Solved Expert 300 Solved