MESON Chess Problem Database
Problem Display
PID: 239827 (2N3nK/5b1n/4Bk2/4RP2/3q4/5N2/1B6/Q7 w - - 0 1)
Haring, Jacobus
Themes-64, 1966
#2
8 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Re3#
- 1...Qe3
- 2.Rxe3#
- 1...Qc5
- 2.Rxc5#
- 1...Qxe5
- 2.Bxe5#
- 1...Qa7
- 2.Rc5#
- 1...Qe4
- 2.Rxe4#
- 1...Qg4
- 2.Re4#
- 1...Qh4
- 2.Re4#
- 1...Qd5
- 2.Rxd5#
- 1...Qd7
- 2.Rd5#
- 1...Qd8
- 2.Rd5#
- 1...Qg1
- Tries
- 1.Re1?
- threat
- 2.Bxd4#
- 1...Qxb2
- 2.Qxb2#
- 1...Qc3
- 2.Bxc3#
- 1...Qe5
- 2.Bxe5#
- 1...Bxe6!
- threat
- 1.Re2?
- threat
- 2.Bxd4#
- 1...Qxb2
- 2.Qxb2#
- 1...Qc3
- 2.Bxc3#
- 1...Qe5
- 2.Bxe5#
- 1...Bxe6!
- threat
- 1.Re3?
- threat
- 2.Bxd4#
- 1...Qxb2
- 2.Qxb2#
- 1...Qc3
- 2.Bxc3#
- 1...Qe5
- 2.Bxe5#
- 1...Bxe6!
- threat
- 1.Re4?
- threat
- 2.Bxd4#
- 1...Qxb2
- 2.Qxb2#
- 1...Qc3
- 2.Bxc3#
- 1...Qe5
- 2.Bxe5#
- 1...Bxe6!
- threat
- 1.Ra5?
- threat
- 2.Bxd4#
- 1...Qxb2
- 2.Qxb2#
- 1...Qc3
- 2.Bxc3#
- 1...Qe5
- 2.Bxe5#
- 1...Bxe6!
- threat
- 1.Rb5?
- threat
- 2.Bxd4#
- 1...Qxb2
- 2.Qxb2#
- 1...Qc3
- 2.Bxc3#
- 1...Qe5
- 2.Bxe5#
- 1...Bxe6!
- threat
- 1.Rc5?
- threat
- 2.Bxd4#
- 1...Qxb2
- 2.Qxb2#
- 1...Qc3
- 2.Bxc3#
- 1...Qe5
- 2.Bxe5#
- 1...Bxe6!
- threat
- 1.Rd5?
- threat
- 2.Bxd4#
- 1...Qxb2
- 2.Qxb2#
- 1...Qc3
- 2.Bxc3#
- 1...Qe5
- 2.Bxe5#
- 1...Bxe6!
- threat
- 1.Qa7?
- threat
- 2.Qxf7#
- 1...Qxa7
- 2.Rc5#
- 1...Bxe6
- 2.Qg7#
- 1...Qd7
- 2.Rd5#
- 1...Bh5
- 2.Qg7#
- 1...Bg6
- 2.Qg7#
- 1...Be8
- 2.Qg7#
- 1...Sh6
- 2.Qe7#
- 1...Se7
- 2.Qxe7#
- 1...Sg5!
- threat
- 1.Re1?
- Keys
- 1.Qg1!
- threat
- 2.Qg7#
- 1...Qxg1
- 2.Re3#
- 1...Qg4
- 2.Re4#
- 1...Bg6
- 2.Qxg6#
- 1...Sg5
- 2.Qxg5#
- threat
- 1.Qg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(a);OGATEB::B(B)+R(D)
- Q(a);OGATEB::B(B)+R(D),XQ(a)
- Q(a);OGATE,P_SPINQ(a),XR(D)::B(B),XQ(a)
- Tries
- Try
- R(D);P_PINQ(a)
- Threat
- B(B),XQ(a)
- Vars
- Q(a);OGATE,XB(B)::QAB(A),XQ(a)
- Q(a);OGATEB::B(B),XQ(a)
- Q(a);OGATE::B(B),XQ(a)
- Refutation
- B(c);XB(F)
- Try
- R(D);P_PINQ(a)
- Threat
- B(B),XQ(a)
- Vars
- Q(a);OGATE,XB(B)::QAB(A),XQ(a)
- Q(a);OGATEB::B(B),XQ(a)
- Q(a);OGATE::B(B),XQ(a)
- Refutation
- B(c);XB(F)
- Try
- R(D);P_PINQ(a)
- Threat
- B(B),XQ(a)
- Vars
- Q(a);OGATE,XB(B)::QAB(A),XQ(a)
- Q(a);OGATEB::B(B),XQ(a)
- Q(a);OGATE::B(B),XQ(a)
- Refutation
- B(c);XB(F)
- Try
- R(D);P_PINQ(a)
- Threat
- B(B),XQ(a)
- Vars
- Q(a);OGATE,XB(B)::QAB(A),XQ(a)
- Q(a);OGATEB::B(B),XQ(a)
- Q(a);OGATE::B(B),XQ(a)
- Refutation
- B(c);XB(F)
- Try
- R(D);P_PINQ(a)
- Threat
- B(B),XQ(a)
- Vars
- Q(a);OGATE,XB(B)::QAB(A),XQ(a)
- Q(a);OGATEB::B(B),XQ(a)
- Q(a);OGATE::B(B),XQ(a)
- Refutation
- B(c);XB(F)
- Try
- R(D);P_PINQ(a)
- Threat
- B(B),XQ(a)
- Vars
- Q(a);OGATE,XB(B)::QAB(A),XQ(a)
- Q(a);OGATEB::B(B),XQ(a)
- Q(a);OGATE::B(B),XQ(a)
- Refutation
- B(c);XB(F)
- Try
- R(D);P_PINQ(a)
- Threat
- B(B),XQ(a)
- Vars
- Q(a);OGATE,XB(B)::QAB(A),XQ(a)
- Q(a);OGATEB::B(B),XQ(a)
- Q(a);OGATE::B(B),XQ(a)
- Refutation
- B(c);XB(F)
- Try
- R(D);P_PINQ(a)
- Threat
- B(B),XQ(a)
- Vars
- Q(a);OGATE,XB(B)::QAB(A),XQ(a)
- Q(a);OGATEB::B(B),XQ(a)
- Q(a);OGATE::B(B),XQ(a)
- Refutation
- B(c);XB(F)
- Try
- Q(A);
- Threat
- QAR1(A),XB(c)
- Vars
- Q(a);OGATEB,XQ(A)::B(B)+R(D)
- B(c);OGATE,XB(F)::QAB1(A)
- Q(a);OGATEB::B(B)+R(D)
- B(c);OGATE::QAB1(A)
- S(e);N_GUARD::QAB1(A)
- S(e);N_GUARD::QAB1(A),XS(e)
- Refutation
- S(d);
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(a);OGATEB,XQ(A)::B(B)+R(D)
- Q(a);OGATEB::B(B)+R(D)
- B(c);N_GUARD::QAR1(A),XB(c)
- S(d);N_GUARD::QAB1(A),XS(d)
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).