2vs4s 1vs4 0vs4sc zvs4s yvs4

d5r4 c5r4sc b5r4s a5r4 94r4sc

oer4sc ner4s mer4 ler4sc ker4s

znq4s ynq4 xnq4sc wnq4s vnq4

axp4 9wp4sc 8wp4s 7wp4 6wp4sc