WASHINGTON — The Sixers’ recent slide amid injury and illness has been peppered with blowout losses. And games where coach Nick Nurse was pleased with how a short-handed group had “played our guts out.” And had an encouraging fourth quarter against the Atlanta Hawks Friday, when their lineup that featured two new players gained some chemistry and rhythm. But what was the antidote to finally secure a win? Play the lowly Washington Wizards (9-43). Two-way rookie Ricky Council IV finished with 19 points — including the game-sealing dunk with 45.2 seconds to play — and 10 rebounds as a surprise cl…