MESON Chess Problem Database
Problem Display
PID: 259186 (8/8/8/2Np1K2/1N4B1/rp6/nB1kpP2/7Q w - - 0 1)
Rudd, Charles Dember
Western Morning News, 1923
(First published on Sat Jul 28 1923)
#2
7 + 6
| 15239 | Valois Notebooks | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Sxb3#
- 1...Ra5
- 2.Sxb3#
- 1...Ra6
- 2.Sxb3#
- 1...Ra7
- 2.Sxb3#
- 1...Ra8
- 2.Sxb3#
- 1...Sc1
- 2.Qxc1#
- 1...Sc3
- 2.Bc1#
- 2.Qc1#
- 1...Sxb4
- 2.Qc1#
- 1...e1Q
- 2.Qxd5#
- 1...e1S
- 2.Qh6#
- 1...e1B
- 2.Qxd5#
- 2.Qh6#
- 1...e1R
- 2.Qxd5#
- 1...d4
- 2.Se4#
- 1...Ra4
- Tries
- 1.Kf4?
- 1...Sxb4
- 2.Qc1#
- 1...e1Q
- 2.Qxd5#
- 1...e1B
- 2.Qxd5#
- 1...e1R
- 2.Qxd5#
- 1...Ra4
- 2.Sxb3#
- 1...Ra5
- 2.Sxb3#
- 1...Ra6
- 2.Sxb3#
- 1...Ra7
- 2.Sxb3#
- 1...Ra8
- 2.Sxb3#
- 1...Sc1
- 2.Qxc1#
- 1...Sc3
- 2.Bc1#
- 2.Qc1#
- 1...d4
- 2.Se4#
- 1...e1S!
- 1...Sxb4
- 1.Kg5?
- 1...Sxb4
- 2.Qc1#
- 1...e1Q
- 2.Qxd5#
- 1...e1B
- 2.Qxd5#
- 1...e1R
- 2.Qxd5#
- 1...Ra4
- 2.Sxb3#
- 1...Ra5
- 2.Sxb3#
- 1...Ra6
- 2.Sxb3#
- 1...Ra7
- 2.Sxb3#
- 1...Ra8
- 2.Sxb3#
- 1...Sc1
- 2.Qxc1#
- 1...Sc3
- 2.Bc1#
- 2.Qc1#
- 1...d4
- 2.Se4#
- 1...e1S!
- 1...Sxb4
- 1.Kf6?
- 1...Sxb4
- 2.Qc1#
- 1...e1Q
- 2.Qxd5#
- 1...e1S
- 2.Qh6#
- 1...e1B
- 2.Qxd5#
- 2.Qh6#
- 1...e1R
- 2.Qxd5#
- 1...Ra4
- 2.Sxb3#
- 1...Ra5
- 2.Sxb3#
- 1...Ra7
- 2.Sxb3#
- 1...Ra8
- 2.Sxb3#
- 1...Sc1
- 2.Qxc1#
- 1...Sc3
- 2.Bc1#
- 2.Qc1#
- 1...d4
- 2.Se4#
- 1...Ra6+!
- 1...Sxb4
- 1.Kg6?
- 1...Sxb4
- 2.Qc1#
- 1...e1Q
- 2.Qxd5#
- 1...e1S
- 2.Qh6#
- 1...e1B
- 2.Qxd5#
- 2.Qh6#
- 1...e1R
- 2.Qxd5#
- 1...Ra4
- 2.Sxb3#
- 1...Ra5
- 2.Sxb3#
- 1...Ra7
- 2.Sxb3#
- 1...Ra8
- 2.Sxb3#
- 1...Sc1
- 2.Qxc1#
- 1...Sc3
- 2.Bc1#
- 2.Qc1#
- 1...d4
- 2.Se4#
- 1...Ra6+!
- 1...Sxb4
- 1.Scd3?
- threat
- 2.Qe1#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 2.Qh6#
- 1...e1B
- 2.Qxe1#
- 2.Qh6#
- 1...e1R
- 2.Qxe1#
- 1...Sxb4!
- threat
- 1.Bh5?
- 1...Sxb4
- 2.Qc1#
- 1...e1Q
- 2.Qxd5#
- 1...e1B
- 2.Qxd5#
- 1...e1R
- 2.Qxd5#
- 1...Ra4
- 2.Sxb3#
- 1...Ra5
- 2.Sxb3#
- 1...Ra6
- 2.Sxb3#
- 1...Ra7
- 2.Sxb3#
- 1...Ra8
- 2.Sxb3#
- 1...Sc1
- 2.Qxc1#
- 1...Sc3
- 2.Bc1#
- 2.Qc1#
- 1...d4
- 2.Se4#
- 1...e1S!
- 1...Sxb4
- 1.Kf4?
- Keys
- 1.Qb1!
- 1...Sxb4
- 2.Qc1#
- 1...Sc1
- 2.Qxc1#
- 1...e1Q
- 2.Qd3#
- 1...e1S
- 2.Qd1#
- 1...e1B
- 2.Qd3#
- 2.Qd1#
- 1...e1R
- 2.Qd3#
- 1...Ra4
- 2.Sxb3#
- 1...Ra5
- 2.Sxb3#
- 1...Ra6
- 2.Sxb3#
- 1...Ra7
- 2.Sxb3#
- 1...Ra8
- 2.Sxb3#
- 1...Sc3
- 2.Qc1#
- 1...d4
- 2.Se4#
- 1...Sxb4
- 1.Qb1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD::S(F),XP(e)
- S(a);N_GUARD::QAB1(A),XS(a)
- S(a);N_GUARD,XS(D)::QAB1(A)
- P(c);SBLOCK::QAR(A),XP(f)
- P(c);SBLOCK::QAB(A)
- P(f);N_GUARD::S(F)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- S(a);N_GUARD,XS(D)::QAB1(A)
- P(c);SBLOCK::QAR(A),XP(f)
- R(d);N_GUARD,P_PINS(D)::S(F),XP(e)
- R(d);N_GUARD::S(F),XP(e)
- S(a);N_GUARD::QAB1(A),XS(a)
- P(f);N_GUARD::S(F)
- Refutation
- P(c);
- Try
- K(G);P-FLIGHT
- Vars
- S(a);N_GUARD,XS(D)::QAB1(A)
- P(c);SBLOCK::QAR(A),XP(f)
- R(d);N_GUARD::S(F),XP(e)
- S(a);N_GUARD::QAB1(A),XS(a)
- P(f);N_GUARD::S(F)
- Refutation
- P(c);
- Try
- K(G);P-FLIGHT
- Vars
- S(a);N_GUARD,XS(D)::QAB1(A)
- P(c);SBLOCK::QAR(A),XP(f)
- P(c);SBLOCK::QAB(A)
- R(d);N_GUARD::S(F),XP(e)
- S(a);N_GUARD::QAB1(A),XS(a)
- P(f);N_GUARD::S(F)
- Refutation
- R(d);CHECK
- Try
- K(G);S_FLIGHT
- Vars
- S(a);N_GUARD,XS(D)::QAB1(A)
- P(c);SBLOCK::QAR(A),XP(f)
- P(c);SBLOCK::QAB(A)
- R(d);N_GUARD::S(F),XP(e)
- S(a);N_GUARD::QAB1(A),XS(a)
- P(f);N_GUARD::S(F)
- Refutation
- R(d);CHECK
- Try
- S(F);
- Threat
- QAB1(A)
- Vars
- P(c);::QAB1(A),XQ(c)
- P(c);::QAB1(A),XR(c)
- Refutation
- S(a);XS(D)
- Try
- B(E);
- Vars
- S(a);N_GUARD,XS(D)::QAB1(A)
- P(c);SBLOCK::QAR(A),XP(f)
- R(d);N_GUARD::S(F),XP(e)
- S(a);N_GUARD::QAB1(A),XS(a)
- P(f);N_GUARD::S(F)
- Refutation
- P(c);
- Try
- Actual
- Q(A);
- Vars
- S(a);N_GUARD,XS(D)::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- P(c);SBLOCK::QAR1(A)
- P(c);N_GUARD::QAR1(A)
- R(d);N_GUARD::S(F),XP(e)
- S(a);N_GUARD::QAB1(A)
- P(f);N_GUARD::S(F)
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