diff --git a/images/checkerblack.png b/images/checkerblack.png
deleted file mode 100644
index 43c7331da37fa76a415eefbb362c21c209ff001b..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001

diff --git a/images/checkerblackq.png b/images/checkerblackq.png
deleted file mode 100644
index 1169285e99365be8bb9009a1491725fe559794d4..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001

diff --git a/images/checkerboard.png b/images/checkerboard.png
deleted file mode 100644
index f173e09fddf953d59f17fe83748f1b200981cb7e..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001

diff --git a/images/checkerwhite.png b/images/checkerwhite.png
deleted file mode 100644
index 2b04c09180bc169f9b5425fa5218b215c8f19b7c..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001

diff --git a/images/checkerwhiteq.png b/images/checkerwhiteq.png
deleted file mode 100644
index 757ab925745197fbc75e293213571fc3d1168d57..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001