MESON Chess Problem Database
Problem Display
PID: 20916 (Q1n5/n7/2p1K3/8/1RB5/8/p7/k7 w - - 0 1)
Williams, Philip Hamilton
Chess Amateur (The), 1914
#2
4 + 5
| 2681 | All Change Here! | 1919 |
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Sb5
- 2.Qxa2#
- 1...Sb6
- 2.Qh8#
- 1...Sd6
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...c5
- 2.Qh1#
- 1...Sb5
- Tries
- 1.Kd7?
- 1...Sb5
- 2.Qxa2#
- 1...Sd6
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...c5
- 2.Qh1#
- 1...Sb6+!
- 1...Sb5
- 1.Kf7?
- 1...Sb6
- 2.Qh8#
- 1...Sb5
- 2.Qxa2#
- 1...Se7
- 2.Qh8#
- 1...c5
- 2.Qh1#
- 1...Sd6+!
- 1...Sb6
- 1.Be2?
- 1...Sb6
- 2.Qh8#
- 1...Sd6
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...c5
- 2.Qh1#
- 1...Sb5!
- 1...Sb6
- 1.Bb5?
- 1...cxb5
- 2.Qh1#
- 1...Sb6
- 2.Qh8#
- 1...Sd6
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...c5
- 2.Qh1#
- 1...Sxb5!
- 1...cxb5
- 1.Ba6?
- 1...Sb6
- 2.Qh8#
- 1...Sd6
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...c5
- 2.Qh1#
- 1...Sb5!
- 1...Sb6
- 1.Rb3?
- 1...Sb6
- 2.Qh8#
- 1...Sd6
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...c5
- 2.Qh1#
- 1...Sb5!
- 1...Sb6
- 1.Rb5?
- 1...Sxb5
- 2.Qxa2#
- 1...Sb6
- 2.Qh8#
- 1...Sd6
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...c5
- 2.Qh1#
- 1...cxb5!
- 1...Sxb5
- 1.Rb6?
- 1...Sb5
- 2.Qxa2#
- 1...Sd6
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...c5
- 2.Qh1#
- 1...Sxb6!
- 1...Sb5
- 1.Qxa7?
- threat
- 2.Qg1#
- 2.Qd4#
- 2.Qxa2#
- 2.Qg7#
- 1...Sb6
- 2.Qxa2#
- 2.Qg7#
- 1...Se7
- 2.Qg1#
- 2.Qd4#
- 2.Qxa2#
- 1...c5
- 2.Qxa2#
- 2.Qg7#
- 1...Sxa7!
- threat
- 1.Qb8?
- threat
- 2.Qe5#
- 1...Sd6
- 2.Qh8#
- 1...Sb5!
- threat
- 1.Kd7?
- Keys
- 1.Bd3!
- 1...Sb6
- 2.Qh8#
- 1...Sb5
- 2.Rb1#
- 1...Sd6
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...c5
- 2.Qh1#
- 1...Sb6
- 1.Bd3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(d);OGATE,P_SPINP(b)::QAR1(D),XP(b)
- S(e);OGATE::QAB(D)
- P(c);OGATE::QAB1(D)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- S(d);OGATE,P_SPINP(b)::QAR1(D),XP(b)
- S(e);OGATE::QAB(D)
- P(c);OGATE::QAB1(D)
- Refutation
- S(e);CHECK
- Try
- K(C);S_FLIGHT
- Vars
- S(e);OGATE::QAB(D)
- S(d);OGATE,P_SPINP(b)::QAR1(D),XP(b)
- P(c);OGATE::QAB1(D)
- Refutation
- S(e);CHECK
- Try
- B(B);
- Vars
- S(e);OGATE::QAB(D)
- P(c);OGATE::QAB1(D)
- Refutation
- S(d);P_SPINP(b)
- Try
- B(B);
- Vars
- P(c);OGATE,XB(B)::QAB1(D)
- S(e);OGATE::QAB(D)
- P(c);OGATE::QAB1(D)
- Refutation
- S(d);P_SPINP(b),XB(B)
- Try
- B(B);
- Vars
- S(e);OGATE::QAB(D)
- P(c);OGATE::QAB1(D)
- Refutation
- S(d);
- Try
- R(A);
- Vars
- S(e);OGATE::QAB(D)
- P(c);OGATE::QAB1(D)
- Refutation
- S(d);P_SPINP(b)
- Try
- R(A);
- Vars
- S(d);OGATE,P_SPINP(b),XR(A)::QAR1(D),XP(b)
- S(e);OGATE::QAB(D)
- P(c);OGATE::QAB1(D)
- Refutation
- P(c);XR(A)
- Try
- R(A);
- Vars
- S(d);OGATE,P_SPINP(b)::QAR1(D),XP(b)
- S(e);OGATE::QAB(D)
- P(c);OGATE::QAB1(D)
- Refutation
- S(e);XR(A)
- Try
- Q(D);P_PINP(b),XS(d)
- Threat
- DUALS(4)
- Refutation
- S(e);N_SPINP(b),XQ(D)
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- S(e);OGATE::QAB(D)
- Refutation
- S(d);
- Try
- Actual
- B(B);
- Vars
- S(e);OGATE::QAB(D)
- S(d);P_SPINP(b)::R1(A)
- P(c);OGATE::QAB1(D)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).