MESON Chess Problem Database
Problem Display
PID: 195902 (8/8/4B3/5p2/3pk3/1n4Q1/2P3K1/5N2 w - - 0 1)
Williams, Philip Hamilton
Western Daily Mercury, 1918
(First published on Sat Feb 23 1918)
#2
5 + 4
| 15239 | Valois Notebooks | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...d3
- 2.Qe3#
- 1...f4
- 2.Qe1#
- 1...Sa1
- Tries
- 1.Kg1?
- 1...d3
- 2.Qe3#
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...f4!
- 1...d3
- 1.Kh1?
- 1...d3
- 2.Qe3#
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...f4!
- 1...d3
- 1.Kf2?
- 1...d3
- 2.Qe3#
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...f4!
- 1...d3
- 1.Kh2?
- 1...d3
- 2.Qe3#
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...f4!
- 1...d3
- 1.Kh3?
- 1...d3
- 2.Qe3#
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...f4!
- 1...d3
- 1.Bxb3?
- threat
- 2.Sd2#
- 1...d3
- 2.Qe3#
- 1...f4!
- threat
- 1.Bc4?
- 1...d3
- 2.Qe3#
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...f4!
- 1...d3
- 1.Bf7?
- 1...d3
- 2.Qe3#
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...f4!
- 1...d3
- 1.Bg8?
- 1...d3
- 2.Qe3#
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...f4!
- 1...d3
- 1.Qf2?
- threat
- 2.Qxf5#
- 1...d3
- 2.Qe3#
- 1...f4
- 2.Qe1#
- 2.Qe2#
- 1...Ke5!
- threat
- 1.Qh4+?
- 1...f4
- 2.Qe1#
- 1...Ke5!
- 1...f4
- 1.Qd3+?
- 1...Kf4
- 2.Qxf5#
- 1...Ke5!
- 1...Kf4
- 1.Qh3?
- threat
- 2.Qxf5#
- 1...Kf4
- 2.Qxf5#
- 1...d3
- 2.Qe3#
- 1...f4
- 2.Qf5#
- 1...Ke5!
- threat
- 1.Qg5?
- threat
- 2.Qxf5#
- 1...d3
- 2.Qe3#
- 1...f4
- 2.Bd5#
- 2.Qd5#
- 2.Qf5#
- 1...Ke5!
- threat
- 1.cxb3?
- threat
- 2.Sd2#
- 1...d3
- 2.Qe3#
- 1...f4!
- threat
- 1.c3?
- 1...dxc3
- 2.Qe3#
- 1...Sa1
- 2.Sd2#
- 1...Sc1
- 2.Sd2#
- 1...Sd2
- 2.Sxd2#
- 1...Sa5
- 2.Sd2#
- 1...Sc5
- 2.Sd2#
- 1...d3
- 2.Qe3#
- 1...f4!
- 1...dxc3
- 1.c4?
- threat
- 2.Bd5#
- 1...dxc4 ep
- 2.Qe3#
- 1...d3
- 2.Qe3#
- 1...f4!
- threat
- 1.Kg1?
- Keys
- 1.Qd6!
- threat
- 2.Bd5#
- 1...d3
- 2.cxd3#
- 1...f4
- 2.Qd5#
- threat
- 1.Qd6!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(b);N_GUARD::QAR1(D)
- P(d);SBLOCK::QAR(D)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- P(b);N_GUARD::QAR1(D)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(d);
- Try
- K(C);S_FLIGHT
- Vars
- P(b);N_GUARD::QAR1(D)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(d);
- Try
- K(C);P-FLIGHT
- Vars
- P(b);N_GUARD::QAR1(D)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(d);
- Try
- K(C);P-FLIGHT
- Vars
- P(b);N_GUARD::QAR1(D)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(d);
- Try
- K(C);S_FLIGHT
- Vars
- P(b);N_GUARD::QAR1(D)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(d);
- Try
- B(E);XS(a)
- Threat
- S(A)
- Vars
- P(b);N_GUARD::QAR1(D)
- Refutation
- P(d);
- Try
- B(E);
- Vars
- P(b);N_GUARD::QAR1(D)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(d);
- Try
- B(E);
- Vars
- P(b);N_GUARD::QAR1(D)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(d);
- Try
- B(E);
- Vars
- P(b);N_GUARD::QAR1(D)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- Refutation
- P(d);
- Try
- Q(D);
- Threat
- QAB1(D),XP(d)
- Vars
- P(b);N_GUARD::QAR1(D)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(D);CHECK
- Vars
- P(d);P_SPINP(d),SBLOCK::QAR(D)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(D);CHECK
- Vars
- K(c);OGATE,P-FLIGHT::QAR1(D),XP(d)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(D);
- Threat
- QAB1(D),XP(d)
- Vars
- K(c);P-FLIGHT::QAR1(D),XP(d)
- P(b);N_GUARD::QAR1(D)
- P(d);::QAB1(D)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(D);
- Threat
- QAB1(D),XP(d)
- Vars
- P(b);N_GUARD::QAR1(D)
- Refutation
- K(c);P-FLIGHT,P_SPINP(d)
- Try
- P(B);XS(a)
- Threat
- S(A)
- Vars
- P(b);N_GUARD::QAR1(D)
- Refutation
- P(d);
- Try
- P(B);
- Vars
- P(b);N_GUARD,XP(B)::QAR1(D)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(b);N_GUARD::QAR1(D)
- Refutation
- P(d);
- Try
- P(B);
- Threat
- B(E)
- Vars
- P(b);EP,N_GUARD,XP(B)::QAR1(D)
- P(b);N_GUARD::QAR1(D)
- Refutation
- P(d);
- Try
- Actual
- Q(D);
- Threat
- B(E)
- Vars
- P(b);OGATE::P(B),XP(b)
- P(d);SBLOCK::QAB1(D)
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