9/23/2010 — Mate in 5

FEN: 8/2p2r2/6R1/3nPB1k/2bpN3/pp6/4P2P/6K1 w - - 0 1
OTBET:
1. Ng3+ Kh4 2. Rg4+ Kh3 3. Rg5+ Rxf5 4. Nxf5 Bxe2 5. Rg3#
9/22/2010 — Systematic Calculation

FEN: 5rk1/1prb2pp/pq2pb2/3p4/1P1N1B2/P5P1/3Q1PBP/1R2R1K1 b - - 0 1
OTBET:
1...Bxd4 2. Bxc7 Bxf2+ 3. Kh1 Qxc7