MESON Chess Problem Database
Problem Display
PID: 226742 (2Q5/5n2/B7/4p2p/4N1q1/3pN2k/3Rp3/2n1B2K w - - 0 1)
Lawton, Howard
Sunday Chronicle, 1946
(First published on Sun Mar 17 1946)
#2
7 + 8
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Qxf5#
- 1...Qe6
- 2.Qxe6#
- 1...Qd7
- 2.Qxd7#
- 1...Qxc8
- 2.Bxc8#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...h4
- 2.Qxg4#
- 1...Qf5
- Tries
- 1.Sg2?
- 1...Qxc8
- 2.Bxc8#
- 1...Qf5
- 2.Qxf5#
- 1...Qe6
- 2.Qxe6#
- 1...Qd7
- 2.Qxd7#
- 1...Sa2
- 2.Rxd3#
- 1...Sb3
- 2.Rxd3#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...h4!
- 1...Qxc8
- 1.Sc4?
- 1...Qxc8
- 2.Bxc8#
- 1...Qf5
- 2.Qxf5#
- 1...Qe6
- 2.Qxe6#
- 1...Qd7
- 2.Qxd7#
- 1...Sa2
- 2.Rxd3#
- 1...Sb3
- 2.Rxd3#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...h4!
- 1...Qxc8
- 1.Sxg4?
- threat
- 2.Sh2#
- 2.Se3#
- 2.Sxe5#
- 2.Sgf6#
- 2.Sh6#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 2.Sxh6#
- 1...Sd8
- 2.Sg5#
- 1...hxg4!
- threat
- 1.Sd5?
- 1...Qxc8
- 2.Bxc8#
- 1...Qf5
- 2.Qxf5#
- 1...Qe6
- 2.Qxe6#
- 1...Qd7
- 2.Qxd7#
- 1...Sa2
- 2.Rxd3#
- 1...Sb3
- 2.Rxd3#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...h4!
- 1...Qxc8
- 1.Rxd3?
- 1...Qxc8
- 2.Bxc8#
- 1...Sa2
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sxg4#
- 2.Sd5#
- 1...Qf5
- 2.Qxf5#
- 1...Qe6
- 2.Qxe6#
- 1...Qd7
- 2.Qxd7#
- 1...Sb3
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sxg4#
- 2.Sd5#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...h4
- 2.Qxg4#
- 1...Sxd3!
- 1...Qxc8
- 1.Sg2?
- Keys
- 1.Sd1!
- 1...Qxc8
- 2.Bxc8#
- 1...exd1Q
- 2.Rh2#
- 1...exd1S
- 2.Rh2#
- 1...exd1B
- 2.Rh2#
- 1...exd1R
- 2.Rh2#
- 1...Qf5
- 2.Qxf5#
- 1...Qe6
- 2.Qxe6#
- 1...Qd7
- 2.Qxd7#
- 1...Sa2
- 2.Rxd3#
- 1...Sb3
- 2.Rxd3#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...h4
- 2.Sdf2#
- 1...Qxc8
- 1.Sd1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- Q(e);OGATEB::QAB(G),XQ(e)
- Q(e);N_SPINQ(e),OGATE,XQ(G)::B(F),XQ(e)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- P(g);N_GUARD::QAB1(G),XQ(e)
- Tries
- Try
- S(D);
- Vars
- Q(e);N_SPINQ(e),OGATE,XQ(G)::B(F),XQ(e)
- Q(e);OGATEB::QAB(G),XQ(e)
- S(a);N_GUARD::R(C),XP(c)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- Refutation
- P(g);
- Try
- S(D);
- Vars
- Q(e);N_SPINQ(e),OGATE,XQ(G)::B(F),XQ(e)
- Q(e);OGATEB::QAB(G),XQ(e)
- S(a);N_GUARD::R(C),XP(c)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- Refutation
- P(g);
- Try
- S(D);XQ(e)
- Threat
- DUALS(5)
- Vars
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- Refutation
- P(g);P_SPINP(g),XS(D)
- Try
- S(D);
- Vars
- Q(e);N_SPINQ(e),OGATE,XQ(G)::B(F),XQ(e)
- Q(e);OGATEB::QAB(G),XQ(e)
- S(a);N_GUARD::R(C),XP(c)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- Refutation
- P(g);
- Try
- R(C);XP(c)
- Vars
- Q(e);N_SPINQ(e),OGATE,XQ(G)::B(F),XQ(e)
- Q(e);OGATEB::QAB(G),XQ(e)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- P(g);N_GUARD::QAB1(G),XQ(e)
- Refutation
- S(a);XR(C)
- Try
- Actual
- S(D);
- Vars
- Q(e);N_SPINQ(e),OGATE,XQ(G)::B(F),XQ(e)
- P(b);OGATE,P_PINB(A),XS(D)::R1(C)
- P(b);OGATE,XS(D)::R1(C)
- Q(e);OGATEB::QAB(G),XQ(e)
- S(a);N_GUARD::R(C),XP(c)
- S(h);N_GUARD::S(E),XS(h)
- S(h);N_GUARD::S(E)
- P(g);SBLOCK::S(D)
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