MESON Chess Problem Database
Problem Display
PID: 63995 (8/3R3p/4pknK/5p2/8/8/7Q/8 w - - 0 1)
Pullen, J
Chess, 1946
#2
3 + 5
SOLUTION
- SOUND
- Sets
- 1...Se5
- 2.Qh4#
- 1...Se5
- Tries
- 1.Qg3?
- 1...Sf4
- 2.Qg7#
- 1...Se7
- 2.Qg7#
- 1...f4
- 2.Qg5#
- 1...Sh4
- 2.Qg7#
- 1...Se5
- 2.Qh4#
- 2.Qg5#
- 2.Qg7#
- 1...Sf8
- 2.Qg7#
- 1...Sh8
- 2.Qg7#
- 1...e5!
- 1...Sf4
- 1.Qb2+?
- 1...e5
- 2.Qb6#
- 1...Se5!
- 1...e5
- 1.Qg2?
- 1...Se7
- 2.Qg7#
- 1...f4
- 2.Qg5#
- 1...Sf4
- 2.Qg7#
- 1...Sh4
- 2.Qg7#
- 1...Se5
- 2.Qg5#
- 2.Qg7#
- 1...Sf8
- 2.Qg7#
- 1...Sh8
- 2.Qg7#
- 1...e5
- 2.Qc6#
- 1...Ke5!
- 1...Se7
- 1.Qh4+?
- 1...Ke5
- 2.Qd4#
- 1...Sxh4!
- 1...Ke5
- 1.Qg3?
- Keys
- 1.Qg1!
- 1...Ke5
- 2.Qd4#
- 1...Se7
- 2.Qg7#
- 1...f4
- 2.Qg5#
- 1...Sf4
- 2.Qg7#
- 1...Sh4
- 2.Qg7#
- 1...Se5
- 2.Qg5#
- 2.Qg7#
- 1...Sf8
- 2.Qg7#
- 1...Sh8
- 2.Qg7#
- 1...e5
- 2.Qb6#
- 1...Ke5
- 1.Qg1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- S(d);N_GUARD,SBLOCK::QAB(A)
- Tries
- Try
- Q(A);
- Vars
- S(d);OGATE::QAB1(A)
- P(a);::QAB1(A)
- Refutation
- P(b);
- Try
- Q(A);CHECK
- Vars
- P(b);OGATEB,P_SPINP(b),SBLOCK::QAR(A)
- Refutation
- S(d);P_SPINS(d)
- Try
- Q(A);
- Vars
- S(d);OGATE::QAB1(A)
- P(a);::QAB1(A)
- P(b);OGATEB,SBLOCK::QAR(A)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(c);S_FLIGHT::QAB1(A)
- Refutation
- S(d);XQ(A)
- Try
- Actual
- Q(A);
- Vars
- K(c);S_FLIGHT::QAB1(A)
- S(d);OGATE::QAB1(A)
- P(a);::QAB1(A)
- P(b);OGATEB,SBLOCK::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).