MESON Chess Problem Database
Problem Display
PID: 195767 (B4QR1/8/6p1/4Br2/p3b2p/Rr3k1P/3P4/5K2 w - - 0 1)
Meurs, Abraham
Haagsche Post, 1921
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Rxa3
- 2.Qxa3#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Re3
- 2.Rxe3#
- 1...Rf4
- 2.Qxf4#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...Rxf8
- 2.Rxf8#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Bxb7#
- 1...Bxa8
- 2.Qxa8#
- 1...g5
- 2.Qxf5#
- 1...Rxa3
- Tries
- 1.Bh2?
- 1...Rxa3
- 2.Qxa3#
- 1...Rxf8
- 2.Rxf8#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Bxb7#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Re3
- 2.Rxe3#
- 1...Rf4
- 2.Qxf4#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...g5
- 2.Qxf5#
- 1...Bxa8!
- 1...Rxa3
- 1.Bc7?
- 1...Rxa3
- 2.Qxa3#
- 1...Rxf8
- 2.Rxf8#
- 1...Rf4
- 2.Qxf4#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Bxb7#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Re3
- 2.Rxe3#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...g5
- 2.Qxf5#
- 1...Bxa8!
- 1...Rxa3
- 1.Bb8?
- 1...Rxa3
- 2.Qxa3#
- 1...Rxf8
- 2.Rxf8#
- 1...Rf4
- 2.Qxf4#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Bxb7#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Re3
- 2.Rxe3#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...g5
- 2.Qxf5#
- 1...Bxa8!
- 1...Rxa3
- 1.Bd5?
- 1...Rxa3
- 2.Qxa3#
- 1...Rxf8
- 2.Rxf8#
- 1...Rf4
- 2.Qxf4#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Re3
- 2.Rxe3#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...g5
- 2.Qxf5#
- 1...Bxd5!
- 1...Rxa3
- 1.Bc6?
- 1...Rxa3
- 2.Qxa3#
- 1...Rxf8
- 2.Rxf8#
- 1...Rf4
- 2.Qxf4#
- 1...Bd5
- 2.Bxd5#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Re3
- 2.Rxe3#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...g5
- 2.Qxf5#
- 1...Bxc6!
- 1...Rxa3
- 1.Bb7?
- 1...Rxa3
- 2.Qxa3#
- 1...Rxf8
- 2.Rxf8#
- 1...Rf4
- 2.Qxf4#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Re3
- 2.Rxe3#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...g5
- 2.Qxf5#
- 1...Bxb7!
- 1...Rxa3
- 1.Rxg6?
- threat
- 2.Qxf5#
- 1...Rf4
- 2.Qxf4#
- 1...Rf6
- 2.Rxf6#
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...Rxf8!
- threat
- 1.Rg7?
- 1...Rxa3
- 2.Qxa3#
- 1...Bxa8
- 2.Qxa8#
- 1...Rf4
- 2.Qxf4#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Bxb7#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Re3
- 2.Rxe3#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Rxf7#
- 2.Qxf7#
- 1...g5
- 2.Qxf5#
- 1...Rxf8!
- 1...Rxa3
- 1.Qc5?
- threat
- 2.Qf2#
- 1...Bd5
- 2.Bxd5#
- 2.Qxd5#
- 1...Bc6
- 2.Bxc6#
- 2.Qxc6#
- 1...Bb7
- 2.Bxb7#
- 1...Re3
- 2.Rxe3#
- 2.Qxe3#
- 1...Bxa8!
- threat
- 1.Bh2?
- Keys
- 1.Rh8!
- 1...Rxa3
- 2.Qxa3#
- 1...Rxf8
- 2.Rxf8#
- 1...Bxa8
- 2.Qxa8#
- 1...Rf4
- 2.Qxf4#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Bxb7#
- 1...Rc3
- 2.Rxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Re3
- 2.Rxe3#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Qxf7#
- 1...g5
- 2.Qxf5#
- 1...Rxa3
- 1.Rh8!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_SPINR(a),OGATE,P_SPINR(f),XR(C)::QAR(G),XR(a)
- R(a);OGATE::R(C),XR(a)
- R(a);OGATE::R1(C),XR(a)
- R(f);OGATE::QAR1(G),XR(f)
- R(f);OGATEB::QAR(G),XR(f)
- R(f);OGATE,XQ(G)::R(H),XR(f)
- B(d);OGATEB::B(F),XB(d)
- B(d);N_SPINB(d),OGATE,XB(F)::QAB(G),XB(d)
- P(g);N_GUARD::QAR2(G),XR(f)
- Tries
- Try
- B(E);
- Vars
- R(a);N_SPINR(a),OGATE,P_SPINR(f),XR(C)::QAR(G),XR(a)
- R(f);OGATE,XQ(G)::R(H),XR(f)
- B(d);OGATEB::B(F),XB(d)
- R(a);OGATE::R(C),XR(a)
- R(a);OGATE::R1(C),XR(a)
- R(f);OGATE::QAR1(G),XR(f)
- R(f);OGATEB::QAR(G),XR(f)
- P(g);N_GUARD::QAR2(G),XR(f)
- Refutation
- B(d);N_SPINB(d),XB(F)
- Try
- B(E);
- Vars
- R(a);N_SPINR(a),OGATE,P_SPINR(f),XR(C)::QAR(G),XR(a)
- R(f);OGATE,XQ(G)::R(H),XR(f)
- R(f);OGATE::QAR1(G),XR(f)
- B(d);OGATEB::B(F),XB(d)
- R(a);OGATE::R(C),XR(a)
- R(a);OGATE::R1(C),XR(a)
- R(f);OGATEB::QAR(G),XR(f)
- P(g);N_GUARD::QAR2(G),XR(f)
- Refutation
- B(d);N_SPINB(d),XB(F)
- Try
- B(E);
- Vars
- R(a);N_SPINR(a),OGATE,P_SPINR(f),XR(C)::QAR(G),XR(a)
- R(f);OGATE,XQ(G)::R(H),XR(f)
- R(f);OGATE::QAR1(G),XR(f)
- B(d);OGATEB::B(F),XB(d)
- R(a);OGATE::R(C),XR(a)
- R(a);OGATE::R1(C),XR(a)
- R(f);OGATEB::QAR(G),XR(f)
- P(g);N_GUARD::QAR2(G),XR(f)
- Refutation
- B(d);N_SPINB(d),XB(F)
- Try
- B(F);
- Vars
- R(a);N_SPINR(a),OGATE,P_SPINR(f),XR(C)::QAR(G),XR(a)
- R(f);OGATE,XQ(G)::R(H),XR(f)
- R(f);OGATE::QAR1(G),XR(f)
- R(a);OGATE::R(C),XR(a)
- R(a);OGATE::R1(C),XR(a)
- R(f);OGATEB::QAR(G),XR(f)
- P(g);N_GUARD::QAR2(G),XR(f)
- Refutation
- B(d);N_SPINB(d),XB(F)
- Try
- B(F);
- Vars
- R(a);N_SPINR(a),OGATE,P_SPINR(f),XR(C)::QAR(G),XR(a)
- R(f);OGATE,XQ(G)::R(H),XR(f)
- R(f);OGATE::QAR1(G),XR(f)
- B(d);OGATEB::B(F),XB(d)
- R(a);OGATE::R(C),XR(a)
- R(a);OGATE::R1(C),XR(a)
- R(f);OGATEB::QAR(G),XR(f)
- P(g);N_GUARD::QAR2(G),XR(f)
- Refutation
- B(d);N_SPINB(d),XB(F)
- Try
- B(F);
- Vars
- R(a);N_SPINR(a),OGATE,P_SPINR(f),XR(C)::QAR(G),XR(a)
- R(f);OGATE,XQ(G)::R(H),XR(f)
- R(f);OGATE::QAR1(G),XR(f)
- B(d);OGATEB::B(F),XB(d)
- R(a);OGATE::R(C),XR(a)
- R(a);OGATE::R1(C),XR(a)
- R(f);OGATEB::QAR(G),XR(f)
- P(g);N_GUARD::QAR2(G),XR(f)
- Refutation
- B(d);N_SPINB(d),XB(F)
- Try
- R(H);XP(g)
- Threat
- QAR2(G),XR(f)
- Vars
- R(f);OGATE::QAR1(G),XR(f)
- R(f);OGATEB::QAR(G),XR(f)
- Refutation
- R(f);XQ(G)
- Try
- R(H);
- Vars
- R(a);N_SPINR(a),OGATE,P_SPINR(f),XR(C)::QAR(G),XR(a)
- B(d);N_SPINB(d),OGATE,XB(F)::QAB(G),XB(d)
- R(f);OGATE::QAR1(G),XR(f)
- B(d);OGATEB::B(F),XB(d)
- R(a);OGATE::R(C),XR(a)
- R(a);OGATE::R1(C),XR(a)
- R(f);OGATEB::QAR(G),XR(f)
- P(g);N_GUARD::QAR2(G),XR(f)
- Refutation
- R(f);XQ(G)
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- B(d);OGATEB::B(F),XB(d)
- Refutation
- B(d);N_SPINB(d),XB(F)
- Try
- Actual
- R(H);
- Vars
- R(a);N_SPINR(a),OGATE,P_SPINR(f),XR(C)::QAR(G),XR(a)
- R(f);OGATE,XQ(G)::R(H),XR(f)
- B(d);N_SPINB(d),OGATE,XB(F)::QAB(G),XB(d)
- R(f);OGATE::QAR1(G),XR(f)
- B(d);OGATEB::B(F),XB(d)
- R(a);OGATE::R(C),XR(a)
- R(a);OGATE::R1(C),XR(a)
- R(f);OGATEB::QAR(G),XR(f)
- P(g);N_GUARD::QAR2(G),XR(f)
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).