MESON Chess Problem Database
Problem Display
PID: 55257 (1b6/2p1P1rr/B1k5/p4Np1/5p2/K2R4/1Pp5/5QBb w - - 0 1)
Mansfield, Comins
Comm., BCF 131. Ty., 1972-1973
#2
8 + 10
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Bf3
- 2.Qxf3#
- 1...c1Q
- 2.Qxc1#
- 1...c1S
- 2.Qxc1#
- 1...c1B
- 2.Qxc1#
- 1...c1R
- 2.Qxc1#
- 1...Bf3
- Tries
- 1.Bb5+?
- 1...Kxb5
- 2.Rc3#
- 2.Rd6#
- 1...Kb7!
- 1...Kxb5
- 1.Bb7+?
- 1...Kb5
- 2.Rd1#
- 2.Rd2#
- 2.Rb3#
- 2.Rc3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Kxb7!
- 1...Kb5
- 1.Rd1?
- threat
- 2.Qc4#
- 2.Qb5#
- 1...cxd1Q
- 2.Qb5#
- 1...cxd1S
- 2.Qb5#
- 1...cxd1B
- 2.Qb5#
- 1...cxd1R
- 2.Qb5#
- 1...Bd5
- 2.Qb5#
- 1...c1Q
- 2.Qb5#
- 1...c1R
- 2.Qb5#
- 1...Ba7
- 2.Qb5#
- 1...Rh3+!
- threat
- 1.Rd2?
- threat
- 2.Qc4#
- 2.Qb5#
- 1...Bd5
- 2.Qb5#
- 1...c1Q
- 2.Qb5#
- 2.Qxc1#
- 1...c1R
- 2.Qb5#
- 2.Qxc1#
- 1...Ba7
- 2.Qb5#
- 1...Rh3+!
- threat
- 1.Rd4?
- threat
- 2.Qb5#
- 1...Kc5
- 2.Rd6#
- 2.Qb5#
- 1...Kb6
- 2.Rd6#
- 1...Rh3+!
- threat
- 1.Rd8?
- threat
- 2.Qc4#
- 2.Qb5#
- 1...c1Q
- 2.Qb5#
- 2.Qxc1#
- 1...c1R
- 2.Qb5#
- 2.Qxc1#
- 1...Bd5
- 2.Qb5#
- 1...Ba7
- 2.Qb5#
- 1...Rh3+!
- threat
- 1.Qe2?
- threat
- 2.Qxc2#
- 2.Qe6#
- 1...Rxe7
- 2.Qxc2#
- 1...c1Q
- 2.Qe6#
- 1...c1S
- 2.Qc2#
- 2.Qe6#
- 1...c1B
- 2.Qc2#
- 2.Qe6#
- 1...c1R
- 2.Qe6#
- 1...Rg6
- 2.Qxc2#
- 1...Rh2
- 2.Qe6#
- 1...Rh6
- 2.Qxc2#
- 1...Be4
- 2.Qxc2#
- 2.Qxe4#
- 1...Ba7
- 2.Qe6#
- 1...Bd5!
- threat
- 1.Qg2+?
- 1...f3
- 2.Qxc2#
- 1...Bxg2!
- 1...f3
- 1.Qe1?
- threat
- 2.Qc3#
- 2.Qe6#
- 1...Rxe7
- 2.Qc3#
- 1...c1Q
- 2.Qxc1#
- 2.Qe6#
- 1...c1R
- 2.Qxc1#
- 2.Qe6#
- 1...Rg6
- 2.Qc3#
- 1...Rh6
- 2.Qc3#
- 1...Be4
- 2.Qc3#
- 2.Qxe4#
- 1...Ba7
- 2.Qe6#
- 1...Bd5!
- threat
- 1.Bb5+?
- Keys
- 1.Re3!
- threat
- 2.Qb5#
- 1...Kc5
- 2.Qb5#
- 1...Kd5
- 2.Qc4#
- 1...Kb6
- 2.Re6#
- 1...Kd7
- 2.e8Q#
- threat
- 1.Re3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- B(a);N_GUARD::QAB(A),XB(a)
- P(b);OGATEB,P_PINP(C)::QAR(A),XQ(b)
- P(b);OGATEB::QAR(A),XS(b)
- P(b);OGATEB,P_PINP(C)::QAR(A),XB(b)
- P(b);OGATEB::QAR(A),XR(b)
- Tries
- Try
- B(G);CHECK
- Refutation
- K(f);S_FLIGHT
- Try
- B(G);CHECK
- Refutation
- K(f);S_FLIGHT,XB(G)
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- P(b);XR(E)::QAB1(A)
- B(a);::QAB1(A)
- P(b);P_PINP(C)::QAB1(A)
- P(b);::QAB1(A)
- B(j);::QAB1(A)
- Refutation
- R(i);CHECK
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- B(a);::QAB1(A)
- B(j);::QAB1(A)
- Refutation
- R(i);CHECK
- Try
- R(E);
- Threat
- QAB1(A)
- Vars
- K(f);P-FLIGHT::B(B)+R(E),DCHECK
- Refutation
- R(i);CHECK
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- B(a);::QAB1(A)
- B(j);::QAB1(A)
- Refutation
- R(i);CHECK
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(h);XP(H)::QAR(A),XP(b)
- P(b);P_PINP(C)::QAR2(A)
- P(b);::QAR2(A)
- R(h);::QAR(A),XP(b)
- R(i);::QAR2(A)
- R(i);::QAR(A),XP(b)
- B(j);::QAR2(A)
- Refutation
- B(a);
- Try
- Q(A);CHECK
- Vars
- P(c);P_SPINP(c)::QAR(A),XP(b)
- Refutation
- B(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(h);XP(H)::QAR(A)
- R(h);::QAR(A)
- R(i);::QAR(A)
- B(j);::QAR2(A)
- Refutation
- B(a);
- Try
- Actual
- R(E);
- Threat
- QAB1(A)
- Vars
- K(f);P-FLIGHT::QAR1(A)
- K(f);S_FLIGHT::QAB1(A)
- K(f);P-FLIGHT::B(B)+R(E),DCHECK
- K(f);S_FLIGHT::P=Q
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).