Add Chess arena

codeclash/arenas/chess/Chess.Dockerfile

@@ -0,0 +1,28 @@
+FROM ubuntu:22.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install Python 3.10 (and alias python→python3.10), pip, and prerequisites
+# Also install C++ compiler and make for building Kojiro
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends \
+    curl ca-certificates python3.10 python3.10-venv \
+    python3-pip python-is-python3 wget git build-essential \
+    g++ make jq curl locales \
+ && rm -rf /var/lib/apt/lists/*
+
+# Clone Kojiro repository
+RUN git clone https://github.com/Babak-SSH/Kojiro.git /workspace \
+    && cd /workspace \
+    && git remote set-url origin https://github.com/Babak-SSH/Kojiro.git
+
+# Clone and build Fastchess
+RUN git clone https://github.com/Disservin/fastchess.git /tmp/fastchess \
+    && cd /tmp/fastchess \
+    && make -j \
+    && install -d /usr/local/bin \
+    && install fastchess /usr/local/bin/fastchess \
+    && rm -rf /tmp/fastchess
+
+WORKDIR /workspace
+