MESON Chess Problem Database
Problem Display
PID: 138654 (8/B7/Qn6/N1b5/3k1Pp1/5pNR/5P2/3K3B w - - 0 1)
Ortmans, FH Joseph
Schaakblad, 1905
#2
9 + 5
| 3530 | Het Half Pin Thema (II) | 1947 |
SOLUTION
- SOUND
- Sets
- 1...Ba3
- 2.Qc4#
- 1...Bb4
- 2.Qc4#
- 1...Bd6
- 2.Qc4#
- 1...Be7
- 2.Qc4#
- 1...Bf8
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sd5
- 2.Qc4#
- 1...Sd7
- 2.Qc4#
- 1...Sa8
- 2.Qc4#
- 1...Sc8
- 2.Qc4#
- 1...Ba3
- Tries
- 1.Kc2?
- threat
- 2.Qd3#
- 1...Ba3
- 2.Qc4#
- 1...Bb4
- 2.Qc4#
- 1...Bd6
- 2.Qc4#
- 1...Be7
- 2.Qc4#
- 1...Bf8
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Kd5!
- threat
- 1.Rh5?
- 1...Sc4
- 2.Qxc4#
- 1...Ba3
- 2.Qc4#
- 1...Bb4
- 2.Qc4#
- 1...Bd6
- 2.Qc4#
- 1...Be7
- 2.Qc4#
- 1...Bf8
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 1...Sd7
- 2.Qc4#
- 1...Sa8
- 2.Qc4#
- 1...Sc8
- 2.Qc4#
- 1...Kc3!
- 1...Sc4
- 1.Kc2?
- Keys
- 1.Qe2!
- threat
- 2.Qd2#
- 1...fxe2+
- 2.Sxe2#
- 1...Kc3
- 2.Qd2#
- 1...Kd5
- 2.Qe5#
- 1...Ba3
- 2.Qc4#
- 1...Bb4
- 2.Qc4#
- 1...Bd6
- 2.Qc4#
- 1...Be7
- 2.Qc4#
- 1...Bf8
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- B(d);P_SPINS(e)::QAR1(H)
- S(e);N_GUARD,P_SPINB(d)::QAR1(H)
- S(e);N_GUARD,P_SPINB(d)::QAR1(H),XS(e)
- Tries
- Try
- K(A);S_FLIGHT
- Threat
- QAR1(H)
- Vars
- B(d);P_SPINS(e)::QAR1(H)
- S(e);N_GUARD,P_SPINB(d)::QAR1(H),XS(e)
- Refutation
- K(b);P-FLIGHT,P_SPINP(a)
- Try
- R(E);
- Vars
- S(e);N_GUARD,P_SPINB(d)::QAR1(H),XS(e)
- B(d);P_SPINS(e)::QAR1(H)
- S(e);N_GUARD,P_SPINB(d)::QAR1(H)
- Refutation
- K(b);S_FLIGHT
- Try
- Actual
- Q(H);
- Threat
- QAR2(H)
- Vars
- P(a);CHECK,XQ(H)::S(D),XP(a)
- K(b);S_FLIGHT::QAB1(H)
- K(b);P-FLIGHT,P_SPINP(a)::QAR1(H)
- B(d);P_SPINS(e)::QAR1(H)
- S(e);N_GUARD,P_SPINB(d)::QAR1(H),XS(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).