MESON Chess Problem Database
Problem Display
PID: 184305 (7b/1n1p1b2/8/1p2Q3/1Nkpp3/R7/N7/1B4BK w - - 0 1)
Hartong, Jan
1st HM., Bulletin Ouvrier des Echecs, 1951
#2
7 + 8
| 78 | Bulletin Ouvrier des Echecs | 1955 |
SOLUTION
- SOUND
- Sets
- 1...Bd5
- 2.Qxd5#
- 1...Bh5
- 2.Qd5#
- 1...Bg6
- 2.Qd5#
- 1...Be8
- 2.Qd5#
- 1...d3
- 2.Rc3#
- 1...e3
- 2.Bd3#
- 1...Bd5
- Tries
- 1.Qh2?
- threat
- 2.Qc2#
- 1...Kc5
- 2.Qc7#
- 1...d3!
- threat
- 1.Qxh8?
- threat
- 2.Qxd4#
- 1...Kc5
- 2.Qxd4#
- 1...d3
- 2.Rc3#
- 2.Qc3#
- 2.Qd4#
- 1...e3!
- threat
- 1.Qxe4?
- threat
- 2.Rc3#
- 2.Qc2#
- 1...Bd5
- 2.Rc3#
- 2.Qxd5#
- 1...Bg6
- 2.Rc3#
- 2.Qd5#
- 1...Kc5!
- threat
- 1.Qg5?
- threat
- 2.Qc1#
- 1...e3
- 2.Bd3#
- 1...d3!
- threat
- 1.Qh2?
- Keys
- 1.Qf4!
- threat
- 2.Qc1#
- 1...Kc5
- 2.Qc7#
- 1...d3
- 2.Bxd3#
- 1...e3
- 2.Rc3#
- threat
- 1.Qf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- B(g);N_GUARD::QAB1(G),XB(g)
- B(g);N_GUARD::QAB1(G)
- P(b);N_GUARD::R1(E)
- P(c);N_GUARD::B(A)
- Tries
- Try
- Q(G);
- Threat
- QAR2(G)
- Vars
- K(a);P-FLIGHT,P_SPINP(b)::QAR2(G)
- Refutation
- P(b);
- Try
- Q(G);XB(h)
- Threat
- QAR1(G),XP(b)
- Vars
- K(a);P-FLIGHT,P_SPINP(b)::QAB1(G),XP(b)
- Refutation
- P(c);
- Try
- Q(G);P_PINP(b),XP(c)
- Threat
- DUALS(2)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(G);
- Threat
- QAR(G)
- Vars
- P(c);N_GUARD::B(A)
- Refutation
- P(b);
- Try
- Actual
- Q(G);
- Threat
- QAR(G)
- Vars
- K(a);P-FLIGHT,P_SPINP(b)::QAR2(G)
- P(b);P_SPINP(c)::B(A),XP(b)
- P(c);P_SPINP(b)::R1(E)
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).