MESON Chess Problem Database
Problem Display
PID: 155139 (4R3/q1k5/p3K3/p2P1P2/N1P1P3/2r5/1Q4B1/8 w - - 0 1)
Williams, Philip Hamilton
Holt School, 0000
#2
9 + 5
| 15351 | SCPF/BCPS Black Books | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Qb8#
- 1...Qf2
- 2.Qb8#
- 1...Qe3
- 2.Qb8#
- 1...Qd4
- 2.Qb8#
- 1...Qc5
- 2.Qb8#
- 1...Qb6+
- 2.Qxb6#
- 1...Qb8
- 2.Qxb8#
- 1...Qa8
- 2.Qb6#
- 1...Rc1
- 2.Qg7#
- 1...Rc2
- 2.Qg7#
- 1...Ra3
- 2.Qg7#
- 1...Rb3
- 2.Qg7#
- 1...Rd3
- 2.Qg7#
- 1...Re3
- 2.Qg7#
- 1...Rf3
- 2.Qg7#
- 1...Rh3
- 2.Qg7#
- 1...Rxc4
- 2.Qg7#
- 1...Qg1
- Tries
- 1.Rb8?
- 1...Qb6+
- 2.Qxb6#
- 1...Rxc4
- 2.Qe5#
- 1...Qb7
- 2.Qxb7#
- 1...Rb3
- 2.Qe5#
- 1...Qg1
- 2.Qb7#
- 1...Qf2
- 2.Qb7#
- 1...Qe3
- 2.Qb7#
- 1...Qd4
- 2.Qb7#
- 1...Qc5
- 2.Qb7#
- 1...Qa8
- 2.Qb6#
- 1...Rc1
- 2.Qe5#
- 1...Rc2
- 2.Qe5#
- 1...Ra3
- 2.Qe5#
- 1...Rd3
- 2.Qe5#
- 1...Re3
- 2.Qe5#
- 1...Rf3
- 2.Qe5#
- 1...Rg3
- 2.Qe5#
- 1...Rh3
- 2.Qe5#
- 1...Qxb8!
- 1...Qb6+
- 1.Qb4?
- threat
- 2.Qe7#
- 1...Qb6+
- 2.Qxb6#
- 1...Qc5
- 2.Qb8#
- 1...axb4!
- threat
- 1.Qb5?
- threat
- 2.Qc6#
- 2.Qd7#
- 2.d6#
- 1...Qb6+
- 2.Qxb6#
- 1...Rxc4
- 2.Qd7#
- 2.d6#
- 1...Qb7
- 2.Qd7#
- 2.d6#
- 1...Qd4
- 2.Qc6#
- 2.Qd7#
- 2.Qb8#
- 1...Qc5
- 2.Qd7#
- 2.Qb8#
- 1...Qa8
- 2.Qd7#
- 2.Qb6#
- 2.d6#
- 1...Rd3
- 2.Qc6#
- 2.Qd7#
- 1...axb5!
- threat
- 1.Rb8?
- Keys
- 1.Bf3!
- 1...Qb6+
- 2.Qxb6#
- 1...Rxf3
- 2.Qg7#
- 1...Rxc4
- 2.Qg7#
- 1...Rb3
- 2.Qg7#
- 1...Qb7
- 2.Qh2#
- 1...Qg1
- 2.Qb8#
- 1...Qf2
- 2.Qb8#
- 1...Qe3
- 2.Qb8#
- 1...Qd4
- 2.Qb8#
- 1...Qc5
- 2.Qb8#
- 1...Qb8
- 2.Qxb8#
- 1...Qa8
- 2.Qb6#
- 1...Rc1
- 2.Qg7#
- 1...Rc2
- 2.Qg7#
- 1...Ra3
- 2.Qg7#
- 1...Rd3
- 2.Qg7#
- 1...Re3
- 2.Qg7#
- 1...Qb6+
- 1.Bf3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- Q(d);N_GUARD::QAB1(A)
- Q(d);N_GUARD,P_PINP(E)::QAB1(A)
- Q(d);CHECK,N_GUARD::QAB1(A),XQ(d)
- Q(d);N_GUARD::QAB1(A),XQ(d)
- R(a);OGATE::QAR(A)
- R(a);OGATE,P_PINP(E)::QAR(A)
- R(a);OGATE,XP(D)::QAR(A)
- Tries
- Try
- R(I);
- Vars
- Q(d);CHECK,N_GUARD::QAB1(A),XQ(d)
- R(a);OGATE,XP(D)::QAB(A)
- Q(d);N_GUARD::QAR1(A),XQ(d)
- R(a);OGATE::QAB(A)
- Q(d);N_GUARD::QAR1(A)
- Q(d);N_GUARD,P_PINP(E)::QAR1(A)
- Q(d);N_GUARD::QAB1(A)
- R(a);OGATE,P_PINP(E)::QAB(A)
- Refutation
- Q(d);XR(I)
- Try
- Q(A);
- Threat
- QAR2(A)
- Vars
- Q(d);CHECK,N_GUARD::QAB1(A),XQ(d)
- Q(d);N_GUARD::QAB1(A)
- Refutation
- P(b);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- Q(d);CHECK,N_GUARD::QAB1(A),XQ(d)
- Refutation
- P(c);XQ(A)
- Try
- Actual
- B(B);
- Vars
- Q(d);CHECK,N_GUARD::QAB1(A),XQ(d)
- R(a);OGATE,XB(B)::QAR(A)
- R(a);OGATE,XP(D)::QAR(A)
- R(a);OGATE::QAR(A)
- Q(d);SBLOCK::QAB(A)
- Q(d);N_GUARD::QAB1(A)
- Q(d);N_GUARD,P_PINP(E)::QAB1(A)
- Q(d);N_GUARD::QAB1(A),XQ(d)
- R(a);OGATE,P_PINP(E)::QAR(A)
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).