MESON Chess Problem Database
Problem Display
PID: 202797 (8/4p3/2n3p1/1NPN2Rp/1pP1k2p/7p/2PKP1nQ/8 w - - 0 1)
Stewart, John
Western Daily Mercury, 1920
(First published on Fri Jan 16 1920)
#2
9 + 9
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Qf4#
- 1...Se3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sd4
- 2.Re5#
- 2.Qe5#
- 1...Sa5
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sa7
- 2.Re5#
- 2.Qe5#
- 1...Sb8
- 2.Re5#
- 2.Qe5#
- 1...Sd8
- 2.Re5#
- 2.Qe5#
- 1...b3
- 2.Sdc3#
- 1...e5
- 2.Sf6#
- 1...e6
- 2.Sf6#
- 1...Se1
- Tries
- 1.Qg3?
- threat
- 2.Qd3#
- 2.Qf3#
- 1...Se1
- 2.Qf4#
- 2.Qxh4#
- 2.Qe3#
- 1...Se3
- 2.Qf4#
- 2.Qxe3#
- 2.Qf3#
- 1...Sf4
- 2.Qxf4#
- 2.Qe3#
- 2.Qf3#
- 1...Sd4
- 2.Re5#
- 2.Qe5#
- 2.Qd3#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...hxg3!
- threat
- 1.Qd6?
- threat
- 2.Qxg6#
- 1...Se3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sd4
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...e6
- 2.Sf6#
- 1...exd6!
- threat
- 1.Qxh3?
- threat
- 2.Qxg2#
- 2.Qd3#
- 2.Qf3#
- 1...Se1
- 2.Qe3#
- 2.Qxh4#
- 1...Se3
- 2.Qxe3#
- 2.Qf3#
- 1...Sf4
- 2.Qe3#
- 2.Qf3#
- 1...Sd4
- 2.Qd3#
- 1...Se5!
- threat
- 1.c3?
- 1...bxc3+
- 2.Sdxc3#
- 1...Se1
- 2.Qf4#
- 1...Se3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sd4
- 2.Re5#
- 2.Qe5#
- 1...Sa5
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sa7
- 2.Re5#
- 2.Qe5#
- 1...Sb8
- 2.Re5#
- 2.Qe5#
- 1...Sd8
- 2.Re5#
- 2.Qe5#
- 1...e5
- 2.Sd6#
- 2.Sf6#
- 1...e6
- 2.Sd6#
- 2.Sf6#
- 1...b3!
- 1...bxc3+
- 1.Qg3?
- Keys
- 1.Qg1!
- 1...b3
- 2.Sbc3#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Se5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...h2
- 2.Qxg2#
- 1...e5
- 2.Sd6#
- 1...e6
- 2.Sd6#
- 1...b3
- 1.Qg1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD::QAR1(D),XS(a)
- P(c);N_GUARD::S(H)
- P(i);N_GUARD::S(H)
- Tries
- Try
- Q(D);
- Threat
- DUALS(2)
- Refutation
- P(e);XQ(D)
- Try
- Q(D);
- Threat
- QAB(D),XP(h)
- Vars
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD::QAR1(D),XS(a)
- P(i);N_GUARD::S(H)
- Refutation
- P(i);XQ(D)
- Try
- Q(D);XP(b)
- Threat
- DUALS(3)
- Vars
- S(g);::QAB1(D)
- Refutation
- S(g);
- Try
- P(A);
- Vars
- P(c);CHECK,XP(A)::S(H),XP(c)
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD::QAR1(D),XS(a)
- Refutation
- P(c);
- Try
- Actual
- Q(D);
- Vars
- P(c);N_GUARD::S(F)
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD::QAR1(D),XS(a)
- S(g);N_GUARD::QAR1(D),XS(g)
- S(g);N_GUARD::QAR1(D)
- P(b);N_GUARD::QAB(D),XS(a)
- P(i);N_GUARD::S(F)
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