MESON Chess Problem Database
Problem Display
PID: 81686 (1N2b3/4p1K1/2Rp4/3pkB2/RQ1p2P1/5np1/6N1/4Bn2 w - - 0 1)
Watson, George
The Field, 1952
(First published on Sat Sep 13 1952)
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Bh5
- 2.Sd7#
- 1...Bxc6
- 2.Sxc6#
- 1...Bg6
- 2.Sd7#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sd7#
- 1...S1d2
- 2.Bxg3#
- 1...S1h2
- 2.Bxg3#
- 1...Se3
- 2.Bxg3#
- 1...Sxe1
- 2.Qxd4#
- 1...Sg1
- 2.Qxd4#
- 1...S3d2
- 2.Qxd4#
- 1...S3h2
- 2.Qxd4#
- 1...Sh4
- 2.Qxd4#
- 1...Sg5
- 2.Qxd4#
- 1...d3
- 2.Qf4#
- 1...e6
- 2.Qxd6#
- 1...Bh5
- Tries
- 1.Sf4?
- threat
- 2.Sd3#
- 1...Sxe1
- 2.Qxd4#
- 1...d3
- 2.Sxd3#
- 1...Kxf4!
- threat
- 1.Bf2?
- 1...Bxc6
- 2.Sxc6#
- 1...Bh5
- 2.Sd7#
- 1...Bg6
- 2.Sd7#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sd7#
- 1...S1d2
- 2.Bxg3#
- 1...S1h2
- 2.Bxg3#
- 1...Se3
- 2.Bxg3#
- 1...Se1
- 2.Bxd4#
- 2.Qxd4#
- 1...Sg1
- 2.Bxd4#
- 2.Qxd4#
- 1...S3d2
- 2.Bxd4#
- 2.Qxd4#
- 1...S3h2
- 2.Bxd4#
- 2.Qxd4#
- 1...Sh4
- 2.Bxd4#
- 2.Qxd4#
- 1...Sg5
- 2.Bxd4#
- 2.Qxd4#
- 1...d3
- 2.Qf4#
- 1...e6
- 2.Qxd6#
- 1...gxf2!
- 1...Bxc6
- 1.Ra7?
- threat
- 2.Rxe7#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sd7#
- 1...e6
- 2.Qxd6#
- 1...Sg5!
- threat
- 1.Rc7?
- threat
- 2.Rxe7#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sc6#
- 2.Sd7#
- 1...Sg5
- 2.Qxd4#
- 1...e6!
- threat
- 1.Qd2?
- threat
- 2.Qf4#
- 1...S1xd2
- 2.Bxg3#
- 1...Se3
- 2.Bxg3#
- 1...S3xd2!
- threat
- 1.Qb2?
- 1...Bxc6
- 2.Sxc6#
- 1...Sxe1
- 2.Qxd4#
- 1...Sg1
- 2.Qxd4#
- 1...Bh5
- 2.Sd7#
- 1...Bg6
- 2.Sd7#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sd7#
- 1...S1d2
- 2.Bxg3#
- 1...S1h2
- 2.Bxg3#
- 2.Qe2#
- 1...Se3
- 2.Bxg3#
- 1...S3d2
- 2.Qxd4#
- 1...S3h2
- 2.Qxd4#
- 1...Sh4
- 2.Qxd4#
- 1...Sg5
- 2.Qxd4#
- 1...e6!
- 1...Bxc6
- 1.Sf4?
- Keys
- 1.Qc5!
- 1...Bxc6
- 2.Sxc6#
- 1...Sxe1
- 2.Qxd4#
- 1...dxc5
- 2.Re6#
- 1...Sg1
- 2.Qxd4#
- 1...Bh5
- 2.Sd7#
- 1...Bg6
- 2.Sd7#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sd7#
- 1...S1d2
- 2.Bxg3#
- 1...S1h2
- 2.Bxg3#
- 1...Se3
- 2.Bxg3#
- 1...S3d2
- 2.Qxd4#
- 1...S3h2
- 2.Qxd4#
- 1...Sh4
- 2.Qxd4#
- 1...Sg5
- 2.Qxd4#
- 1...d3
- 2.Re4#
- 1...e6
- 2.Qxd6#
- 1...Bxc6
- 1.Qc5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(i);N_GUARD::S(I)
- B(i);XR(G)::S(I),XB(i)
- B(i);N_GUARD::S(I),XB(i)
- S(a);N_GUARD::B(A),XP(c)
- S(b);N_GUARD,XB(A)::QAB1(D),XP(d)
- S(b);N_GUARD::QAB1(D),XP(d)
- P(d);OGATE::QAB1(D)
- P(h);N_GUARD::QAB1(D),XP(g)
- Tries
- Try
- S(B);
- Threat
- S(B)
- Vars
- S(b);N_GUARD,XB(A)::QAB1(D),XP(d)
- P(d);::S(B),XP(d)
- Refutation
- K(f);P_SPINP(d),S_FLIGHT,XS(B)
- Try
- B(A);
- Vars
- B(i);XR(G)::S(I),XB(i)
- B(i);N_GUARD::S(I)
- B(i);N_GUARD::S(I),XB(i)
- S(a);N_GUARD::B(A),XP(c)
- P(d);OGATE::QAB1(D)
- P(h);N_GUARD::QAB1(D),XP(g)
- Refutation
- P(c);XB(A)
- Try
- R(C);
- Threat
- R(C),XP(h)
- Vars
- B(i);N_GUARD::S(I),XB(i)
- B(i);N_GUARD::S(I)
- P(h);N_GUARD::QAB1(D),XP(g)
- Refutation
- S(b);
- Try
- R(G);
- Threat
- R(G),XP(h)
- Vars
- B(i);N_GUARD::S(I),XB(i)
- S(b);N_GUARD::QAB1(D),XP(d)
- Refutation
- P(h);
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- S(a);N_GUARD,XQ(D)::B(A),XP(c)
- S(a);N_GUARD::B(A),XP(c)
- Refutation
- S(b);XQ(D)
- Try
- Q(D);P_PINP(d)
- Vars
- B(i);XR(G)::S(I),XB(i)
- S(b);N_GUARD,XB(A)::QAB1(D),XP(d)
- S(b);N_GUARD::QAB1(D),XP(d)
- B(i);N_GUARD::S(I)
- B(i);N_GUARD::S(I),XB(i)
- S(a);N_GUARD::B(A),XP(c)
- Refutation
- P(h);
- Try
- Actual
- Q(D);P_PINP(e)
- Vars
- B(i);XR(G)::S(I),XB(i)
- S(b);N_GUARD,XB(A)::QAB1(D),XP(d)
- P(g);N_SPINP(e),OGATE,XQ(D)::R1(G)
- S(b);N_GUARD::QAB1(D),XP(d)
- B(i);N_GUARD::S(I)
- B(i);N_GUARD::S(I),XB(i)
- S(a);N_GUARD::B(A),XP(c)
- P(d);OGATE::R1(C)
- P(h);N_GUARD::QAB1(D),XP(g)
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