See 3 moves ahead from wtharvey.com



Here are some chess problems composed by O. Blumenthal.
White mates in 3.

Solutions are between the brackets under each puzzle.
Drag your cursor from one bracket to the other.

a)
8/2Q5/8/1k6/5B2/3K4/8/8 w - - 0 1
[ Bg5 if Ka4 or Kb4 Qc4+ or if Ka6 Bd8 ]

b)
8/8/2Q5/4k3/8/6N1/4K1N1/8 w - - 0 1
[ Kd1 Kd4 Qb5 Kc3 Ne2# ]

c)
Q7/8/8/4K3/8/8/5N2/Nk6 w - - 0 1
[ Qg2 if Kxa1 Nd3 (or Nd1) or if all others Nd3+ ]

d)
8/8/7k/8/5PBN/8/4K3/7R w - - 0 1
[ Be6 & Nf5+ ]

e)
8/8/N1Bkp3/8/8/4KQ2/8/8 w - - 0 1
[ Kf4 if Ke7 Ke5 or if e5+ Kg5 ]

O. Blumenthal Problems, Part II. White mates in 3.
a)
Bohemia, 1905
8/8/8/5p2/3K4/6RR/7P/7k w - - 0 1
[ Ke3 f4+ Kf2 ]

b)
6Q1/8/8/8/p2K4/p7/Bk6/8 w - - 0 1
[ Qg1 if Kxa2 Qc1 or if Kc2 Qe1 ]

c)
8/2K5/8/NkN5/1P6/2B5/8/8 w - - 0 1
[ Bb2 Kxb4 Kc6 Kxa5 Bc3# ]

d)
8/n4p2/8/5K1k/Qn1p4/8/8/8 w - - 0 1
[ Qb3 if d3 Qb2 or if Kh4 Qf3 or if Kh6 Qxf7 or if Nd3 Qb8 ]

e)
3B4/8/1K5p/8/8/1Q4N1/2Pk4/8 w - - 0 1
[ Bh4 Kd1 or h5 Ne2 or if Kc1 or Ke1 Ne2+ ]

O. Blumenthal Problems, Part III. White mates in 3.
a)
4B3/8/8/1K6/2P3N1/1Q6/6n1/2k5 w - - 0 1
[ Ka6 & Ba4 ]

b)
8/4N3/6N1/1kP5/7P/Q7/4K3/8 w - - 0 1
[ Nh8 Kc4 Nf7 if Kb5 Nd6# or if Kd4 Qb4# ]

c)
8/8/8/8/4N3/7P/Kn2Q2b/7k w - - 0 1
[ Nd2 if N moves Qf3+ or if Bg3 Qf1+ or if B to d6, c7, b8, e5 or f4 Nf3 ]

d)
K7/1R5p/7P/6k1/8/8/8/7Q w - - 0 1
[ Qe4 if Kxh6 Qg2 or if Kh5 Rg7 or if Kf6 Qd5 ]

e)
k5N1/rR3K2/8/8/8/8/8/7Q w - - 0 1
[ Nf6 if Rxb7+ Nd7 or if Ra1 Rb1+ ]

O. Blumenthal Problems, Part IV. White mates in 3.
a)
8/8/5p2/4P3/4B3/6k1/2Q2N2/1K6 w - - 0 1
[ Bf5 if Kf4 Nh3+ or if Kf3 Nd3 ]

b)
8/8/3pB1Q1/3Nk3/1P6/8/8/7K w - - 0 1
[ Bg8 Kd4 Bh7 ]

c)
5Q2/8/4K3/8/5P2/1pB5/N7/1k6 w - - 0 1
[ Qc5 if Kxa2 Qf2+ or if Kc2 Qf5+ or if bxa2 Ba1 or if b2 Nb4 (or Qf2) ]

d)
Saale Zeitung, 1902?
2Q5/6R1/3k2p1/4N1b1/8/1K6/8/8 w - - 0 1
[ Re7 if Kxe7 Qd7+ or if Bxe7 Nf7+ or if Be3 Re6+ or if Kd5 Qc4+ (or Nf7) ]

e)
8/8/8/8/2P5/1K1N4/2Qpk3/3N4 w - - 0 1
[ Ne1 Kxe1 Qd3 or if Kc1 Qxd2 ]

f)
8/2Kp4/8/3k1P2/3P4/3Q4/8/2B5 w - - 0 1
[ Be3 d6 Kc8 Kc6 d5# ]

g)
8/R1Np4/2Nk4/7R/5K2/8/8/8 w - - 0 1
[ Rha5 if Kxc6 Nd5 or if dxc6 Ne8+ ]


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