MESON Chess Problem Database
Problem Display
PID: 70297 (1b5Q/6n1/1B6/7N/5N1p/6Pr/K1R5/7k w - - 0 1)
Mackenzie, Arthur Ford
Norwich Mercury, 1903
#2
7 + 5
| 3530 | Het Half Pin Thema (II) | 0000 |
SOLUTION
- SOUND
- Sets
- 1...Rxg3
- 2.Sxg3#
- 1...Bxf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Sf5
- 2.Qa1#
- 1...Sxh5
- 2.Qa1#
- 1...Se6
- 2.Qa1#
- 1...Se8
- 2.Qa1#
- 1...hxg3
- 2.Sxg3#
- 1...Rxg3
- Tries
- 1.Ka3?
- 1...Rxg3+
- 2.Sxg3#
- 1...Bxf4
- 2.Qa8#
- 1...Sxh5
- 2.Qa1#
- 1...hxg3
- 2.Sxg3#
- 1...Rh2
- 2.Rc1#
- 1...Be5
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Sf5
- 2.Qa1#
- 1...Se6
- 2.Qa1#
- 1...Se8
- 2.Qa1#
- 1...Bd6+!
- 1...Rxg3+
- 1.Sxh3?
- 1...Bxg3
- 2.Qa8#
- 1...Sxh5
- 2.Qa1#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Sf5
- 2.Qa1#
- 1...Se6
- 2.Qa1#
- 1...Se8
- 2.Qa1#
- 1...hxg3!
- 1...Bxg3
- 1.Be3?
- 1...Rxg3
- 2.Sxg3#
- 1...Bxf4
- 2.Qa8#
- 1...Sxh5
- 2.Qa1#
- 1...hxg3
- 2.Sxg3#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Sf5
- 2.Qa1#
- 1...Se6
- 2.Qa1#
- 1...Se8
- 2.Qa1#
- 1...Rh2!
- 1...Rxg3
- 1.Bc5?
- 1...Rxg3
- 2.Sxg3#
- 1...Bxf4
- 2.Qa8#
- 1...Sxh5
- 2.Qa1#
- 1...hxg3
- 2.Sxg3#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Sf5
- 2.Qa1#
- 1...Se6
- 2.Qa1#
- 1...Se8
- 2.Qa1#
- 1...Rh2!
- 1...Rxg3
- 1.Rd2?
- 1...Rxg3
- 2.Sxg3#
- 1...Bxf4
- 2.Qa8#
- 1...Sxh5
- 2.Qa1#
- 1...hxg3
- 2.Sxg3#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Sf5
- 2.Qa1#
- 1...Se6
- 2.Qa1#
- 1...Se8
- 2.Qa1#
- 1...Rh2!
- 1...Rxg3
- 1.Re2?
- 1...Rxg3
- 2.Sxg3#
- 1...Bxf4
- 2.Qa8#
- 1...Sxh5
- 2.Qa1#
- 1...hxg3
- 2.Sxg3#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Sf5
- 2.Qa1#
- 1...Se6
- 2.Qa1#
- 1...Se8
- 2.Qa1#
- 1...Rh2!
- 1...Rxg3
- 1.Qxg7?
- threat
- 2.Qa1#
- 2.Qb7#
- 1...Bxf4
- 2.Qb7#
- 1...hxg3
- 2.Qa1#
- 1...Rh2
- 2.Qa1#
- 1...Be5
- 2.Qb7#
- 1...Bc7
- 2.Qa1#
- 1...Rxg3!
- threat
- 1.Qh7?
- threat
- 2.Qe4#
- 1...Rxg3
- 2.Sxg3#
- 1...hxg3
- 2.Sxg3#
- 1...Sf5
- 2.Qb7#
- 1...Rh2!
- threat
- 1.Qd8?
- threat
- 2.Qd1#
- 2.Qd5#
- 1...hxg3
- 2.Qd1#
- 1...Rh2
- 2.Qd1#
- 1...Bd6
- 2.Qa8#
- 1...Rxg3!
- threat
- 1.Ka3?
- Keys
- 1.Kb3!
- 1...Rxg3+
- 2.Sxg3#
- 1...Bxf4
- 2.Qa8#
- 1...Sxh5
- 2.Qa1#
- 1...hxg3
- 2.Sxg3#
- 1...Rh2
- 2.Rc1#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Sf5
- 2.Qa1#
- 1...Se6
- 2.Qa1#
- 1...Se8
- 2.Qa1#
- 1...Rxg3+
- 1.Kb3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);XP(C)::S(E),XR(b)
- B(e);OGATE,XS(D)::QAB(G)
- B(e);OGATE::QAB(G)
- S(d);OGATE::QAB1(G)
- S(d);OGATE,XS(E)::QAB1(G)
- P(c);XP(C)::S(E),XP(c)
- Tries
- Try
- K(A);P-FLIGHT,P_SPINP(C)
- Vars
- R(b);CHECK,XP(C)::S(E),XR(b)
- B(e);OGATE,XS(D)::QAB(G)
- S(d);OGATE,XS(E)::QAB1(G)
- P(c);XP(C)::S(E),XP(c)
- R(b);N_PINP(C),SBLOCK::R(B)
- B(e);OGATE::QAB(G)
- S(d);OGATE::QAB1(G)
- Refutation
- B(e);CHECK
- Try
- S(D);XR(b)
- Vars
- B(e);OGATE,XP(C)::QAB(G)
- S(d);OGATE,XS(E)::QAB1(G)
- B(e);OGATE::QAB(G)
- S(d);OGATE::QAB1(G)
- Refutation
- P(c);XP(C)
- Try
- B(F);
- Vars
- R(b);XP(C)::S(E),XR(b)
- B(e);OGATE,XS(D)::QAB(G)
- S(d);OGATE,XS(E)::QAB1(G)
- P(c);XP(C)::S(E),XP(c)
- B(e);OGATE::QAB(G)
- S(d);OGATE::QAB1(G)
- Refutation
- R(b);P_PINR(B)
- Try
- B(F);
- Vars
- R(b);XP(C)::S(E),XR(b)
- B(e);OGATE,XS(D)::QAB(G)
- S(d);OGATE,XS(E)::QAB1(G)
- P(c);XP(C)::S(E),XP(c)
- B(e);OGATE::QAB(G)
- S(d);OGATE::QAB1(G)
- Refutation
- R(b);P_PINR(B)
- Try
- R(B);
- Vars
- R(b);XP(C)::S(E),XR(b)
- B(e);OGATE,XS(D)::QAB(G)
- S(d);OGATE,XS(E)::QAB1(G)
- P(c);XP(C)::S(E),XP(c)
- B(e);OGATE::QAB(G)
- S(d);OGATE::QAB1(G)
- Refutation
- R(b);P_PINR(B)
- Try
- R(B);
- Vars
- R(b);XP(C)::S(E),XR(b)
- B(e);OGATE,XS(D)::QAB(G)
- S(d);OGATE,XS(E)::QAB1(G)
- P(c);XP(C)::S(E),XP(c)
- B(e);OGATE::QAB(G)
- S(d);OGATE::QAB1(G)
- Refutation
- R(b);P_PINR(B)
- Try
- Q(G);XS(d)
- Threat
- DUALS(2)
- Vars
- B(e);XS(D)::QAB(G)
- P(c);XP(C)::QAB1(G)
- R(b);P_PINR(B)::QAB1(G)
- B(e);::QAB(G)
- B(e);::QAB1(G)
- Refutation
- R(b);XP(C)
- Try
- Q(G);
- Threat
- QAB(G)
- Vars
- R(b);XP(C)::S(E),XR(b)
- P(c);XP(C)::S(E),XP(c)
- S(d);OGATE::QAB(G)
- Refutation
- R(b);P_PINR(B)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- P(c);XP(C)::QAR(G)
- R(b);P_PINR(B)::QAR(G)
- B(e);OGATE::QAB(G)
- Refutation
- R(b);XP(C)
- Try
- Actual
- K(A);P_SPINP(C),S_FLIGHT
- Vars
- R(b);CHECK,XP(C)::S(E),XR(b)
- B(e);OGATE,XS(D)::QAB(G)
- S(d);OGATE,XS(E)::QAB1(G)
- P(c);XP(C)::S(E),XP(c)
- R(b);N_PINP(C),SBLOCK::R(B)
- B(e);OGATE::QAB(G)
- S(d);OGATE::QAB1(G)
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).