HomepageIsaac CostinPopular puzzles created by Isaac Costin Popular puzzles created by Isaac Costin 99silly dude 1Isaac Costinsolved 6 timesSolve puzzle 182A horse outsideIsaac Costinsolved 6 timesSolve puzzle156chrisrmas jumberIsaac Costinsolved 5 timesSolve puzzle144a scotish castleIsaac Costinsolved 4 timesSolve puzzle150man starIsaac Costinsolved 2 timesSolve puzzle169big cityIsaac Costinsolved 2 timesSolve puzzle150scotish flagIsaac Costinsolved 2 timesSolve puzzle 140Europein flagIsaac Costinsolved 2 timesSolve puzzle