Leopold SzwedowskiProbleemblad 1962 1.Le6! [2.Lc3‡] 1…K×e5 2.Lc3‡ 1…L×e5 2.D×c6‡ 1…P×e5 2.Pc3‡ 1…D×e5 2.P×f2‡ Wit geeft mat in 2 zetten