MESON Chess Problem Database
Problem Display
PID: 186177 (7R/6P1/8/Q2b4/1K2pN2/8/1B5r/R5rk w - - 0 1)
Ouellet, Charles
Problem Observer, 2017
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Rxa1
- 2.Qxa1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Rxc1#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Rh3
- 2.Rxh3#
- 1...Rh4
- 2.Rxh4#
- 1...Rh5
- 2.Rxh5#
- 1...Rh6
- 2.Rxh6#
- 1...Rh7
- 2.Rxh7#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8R#
- 1...e3
- 2.Qxd5#
- 1...Rxa1
- Tries
- 1.Qc5?
- threat
- 2.Rxg1#
- 2.Qxg1#
- 1...Rxh8
- 2.Qxg1#
- 2.gxh8Q#
- 2.gxh8R#
- 1...Rh3
- 2.Rxh3#
- 2.Qxg1#
- 1...Rh4
- 2.Rxh4#
- 2.Qxg1#
- 1...Rh5
- 2.Rxh5#
- 2.Qxg1#
- 1...Rh6
- 2.Rxh6#
- 2.Qxg1#
- 1...Rh7
- 2.Rxh7#
- 2.Qxg1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Rxc1#
- 2.Qxc1#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rxe1#
- 1...Rf1
- 2.Rxf1#
- 1...e3
- 2.Qxd5#
- 1...Rxa1!
- threat
- 1.Qxd5?
- threat
- 2.Qxe4#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8R#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Rxc1#
- 1...Rd1
- 2.Rxd1#
- 2.Qxd1#
- 1...Re1
- 2.Rxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Rh3
- 2.Rxh3#
- 1...Rh4
- 2.Rxh4#
- 1...Rh5
- 2.Rxh5#
- 2.Qxh5#
- 1...Rh6
- 2.Rxh6#
- 1...Rh7
- 2.Rxh7#
- 1...Rxa1!
- threat
- 1.Qa7?
- threat
- 2.Rxg1#
- 2.Qxg1#
- 1...Rxa1
- 2.Qxa1#
- 1...Rxh8
- 2.Qxg1#
- 2.gxh8Q#
- 2.gxh8R#
- 1...Rh3
- 2.Rxh3#
- 2.Qxg1#
- 1...Rh4
- 2.Rxh4#
- 2.Qxg1#
- 1...Rh5
- 2.Rxh5#
- 2.Qxg1#
- 1...Rh6
- 2.Rxh6#
- 2.Qxg1#
- 1...Rh7
- 2.Rxh7#
- 2.Qxg1#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Rxc1#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rxe1#
- 1...Rf1
- 2.Rxf1#
- 1...e3!
- threat
- 1.g8Q?
- threat
- 2.Rxg1#
- 2.Qxg1#
- 2.Qg2#
- 1...Rxa1
- 2.Qxa1#
- 2.Qg2#
- 1...Rxh8
- 2.Qxg1#
- 2.Qg2#
- 2.Qxh8#
- 1...Rh3
- 2.Rxh3#
- 2.Qxg1#
- 2.Qg2#
- 1...Rh4
- 2.Rxh4#
- 2.Qxg1#
- 2.Qg2#
- 1...Rh5
- 2.Rxh5#
- 2.Qxg1#
- 2.Qg2#
- 1...Rh6
- 2.Rxh6#
- 2.Qxg1#
- 2.Qg2#
- 1...Rh7
- 2.Rxh7#
- 2.Qxh7#
- 2.Qxg1#
- 2.Qg2#
- 1...Rb1
- 2.Rxb1#
- 2.Qg2#
- 1...Rc1
- 2.Rxc1#
- 2.Qg2#
- 1...Rd1
- 2.Rxd1#
- 2.Qg2#
- 1...Re1
- 2.Rxe1#
- 2.Qg2#
- 1...Rf1
- 2.Rxf1#
- 2.Qg2#
- 1...e3
- 2.Rxg1#
- 2.Qgxd5#
- 2.Qaxd5#
- 2.Qxg1#
- 1...Bxg8!
- threat
- 1.g8R?
- threat
- 2.Raxg1#
- 2.Rgxg1#
- 1...Rxa1
- 2.Qxa1#
- 1...Rxh8
- 2.Rxh8#
- 1...Rh3
- 2.Rxh3#
- 1...Rh4
- 2.Rxh4#
- 1...Rh5
- 2.Rxh5#
- 1...Rh6
- 2.Rxh6#
- 1...Rh7
- 2.Rxh7#
- 1...Rb1
- 2.Rxb1#
- 1...Rc1
- 2.Rxc1#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rxe1#
- 1...Rf1
- 2.Rxf1#
- 1...Bxg8!
- threat
- 1.Qc5?
- Keys
- 1.Bd4!
- threat
- 2.Rxg1#
- 1...Rb1+
- 2.Rxb1#
- 1...Rxa1
- 2.Qxa1#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8R#
- 1...Rh3
- 2.Rxh3#
- 1...Rh4
- 2.Rxh4#
- 1...Rh5
- 2.Rxh5#
- 1...Rh6
- 2.Rxh6#
- 1...Rh7
- 2.Rxh7#
- 1...Rc1
- 2.Rxc1#
- 1...Rd1
- 2.Rxd1#
- 1...Re1
- 2.Rxe1#
- 1...Rf1
- 2.Rxf1#
- 1...e3
- 2.Qxd5#
- threat
- 1.Bd4!
This is a version of 186173
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_SPINR(a),OGATE,P_SPINR(c),XR(A)::QAB1(E),XR(a)
- R(a);OGATEB,P_PINB(B)::R(A),XR(a)
- R(a);OGATEB::R(A),XR(a)
- R(c);OGATEB::R(G),XR(c)
- R(c);OGATE,XR(G)::PXR(c)=Q
- P(d);OGATEB::QAB(E),XB(e)
- Tries
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(a);OGATEB,P_PINB(B)::R(A),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(d);OGATEB::QAB(E),XB(e)
- Refutation
- R(a);N_SPINR(a),P_SPINR(c),XR(A)
- Try
- Q(E);P_PINP(d),XB(e)
- Threat
- QAB(E),XP(d)
- Vars
- R(c);OGATE,XR(G)::PXR(c)=Q
- R(a);OGATEB,P_PINB(B)::R(A),XR(a)
- R(a);OGATEB::R(A),XR(a)
- R(c);OGATEB::R(G),XR(c)
- Refutation
- R(a);N_SPINR(a),P_SPINR(c),XR(A)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(a);N_SPINR(a),OGATE,P_SPINR(c),XR(A)::QAB1(E),XR(a)
- R(a);OGATEB,P_PINB(B)::R(A),XR(a)
- R(a);OGATEB::R(A),XR(a)
- Refutation
- P(d);
- Try
- P(F);
- Threat
- DUALS(3)
- Refutation
- B(e);XQ(F)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- R(a);N_SPINR(a),OGATE,P_SPINR(c),XR(A)::QAB1(E),XR(a)
- R(c);OGATE,XR(G)::R(F),XR(c)
- R(c);OGATEB::R(G),XR(c)
- R(a);OGATEB,P_PINB(B)::R(A),XR(a)
- R(a);OGATEB::R(A),XR(a)
- Refutation
- B(e);XR(F)
- Try
- Actual
- B(B);
- Threat
- R1(A),XR(a)
- Vars
- R(a);CHECK,OGATEB::R(A),XR(a)
- R(a);N_SPINR(a),OGATE,P_SPINR(c),XR(A)::QAB1(E),XR(a)
- R(c);OGATE,XR(G)::PXR(c)=Q
- R(c);OGATEB::R(G),XR(c)
- R(a);OGATEB::R(A),XR(a)
- P(d);OGATEB::QAB(E),XB(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).