It's that time of the year again: https://www.janko.at/Retros/d.php?ff=r3kn1r/pppbnppp/1q1p1b2/3Kp3/2B1P2P/4R3/PPPPNPP1/RNBQ4 Proof game in 10.0; how many solutions? (C+ Popeye) Wishing all a healthy and happy C(24,3) - 1, --Noam D. Elkies