MESON Chess Problem Database
Problem Display
PID: 139668 (k2NN3/Pr1p4/3B4/8/R7/p2P1Kp1/Pb5p/1Q5B w - - 0 1)
Bridgwater, Ralph Herbert
The Problemist, 1937
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Rxa7
- 2.Kxg3#
- 1...Rc7
- 2.Sxc7#
- 1...Rb8
- 2.Sc7#
- 2.axb8Q#
- 2.axb8S#
- 2.axb8B#
- 2.axb8R#
- 1...Ba1
- 2.Qxb7#
- 1...Bc1
- 2.Qxb7#
- 1...Bc3
- 2.Qxb7#
- 1...Bd4
- 2.Qxb7#
- 1...Be5
- 2.Qxb7#
- 1...Bf6
- 2.Qxb7#
- 1...Bg7
- 2.Qxb7#
- 1...Bh8
- 2.Qxb7#
- 1...Rb3
- Tries
- 1.Rxa3?
- 1...Rxa7
- 2.Kxg3#
- 1...Bxa3
- 2.Qxb7#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Rc7
- 2.Sxc7#
- 1...Rb8
- 2.Sc7#
- 2.axb8Q#
- 2.axb8R#
- 1...Ba1
- 2.Qxb7#
- 1...Bc1
- 2.Qxb7#
- 1...Bc3
- 2.Qxb7#
- 1...Bd4
- 2.Qxb7#
- 1...Be5
- 2.Qxb7#
- 1...Bf6
- 2.Qxb7#
- 1...Bg7
- 2.Qxb7#
- 1...Bh8
- 2.Qxb7#
- 1...g2!
- 1...Rxa7
- 1.Ra5?
- 1...Rxa7
- 2.Kxg3#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Rc7
- 2.Sxc7#
- 1...Rb8
- 2.Sc7#
- 2.axb8Q#
- 2.axb8S#
- 2.axb8B#
- 2.axb8R#
- 1...Ba1
- 2.Qxb7#
- 1...Bc1
- 2.Qxb7#
- 1...Bc3
- 2.Qxb7#
- 1...Bd4
- 2.Qxb7#
- 1...Be5
- 2.Qxb7#
- 1...Bf6
- 2.Qxb7#
- 1...Bg7
- 2.Qxb7#
- 1...Bh8
- 2.Qxb7#
- 1...g2!
- 1...Rxa7
- 1.Ra6?
- 1...Rxa7
- 2.Kxg3#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Rc7
- 2.Sxc7#
- 1...Rb8
- 2.Sc7#
- 2.axb8Q#
- 2.axb8S#
- 2.axb8B#
- 2.axb8R#
- 1...Ba1
- 2.Qxb7#
- 1...Bc1
- 2.Qxb7#
- 1...Bc3
- 2.Qxb7#
- 1...Bd4
- 2.Qxb7#
- 1...Be5
- 2.Qxb7#
- 1...Bf6
- 2.Qxb7#
- 1...Bg7
- 2.Qxb7#
- 1...Bh8
- 2.Qxb7#
- 1...g2!
- 1...Rxa7
- 1.Qxb2?
- threat
- 2.Qxb7#
- 1...Rxb2
- 2.Sc7#
- 1...Rxa7
- 2.Kxg3#
- 2.Sc7#
- 2.Qb7#
- 2.Qb8#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Rc7
- 2.Sxc7#
- 2.Qb8#
- 1...Rb8
- 2.Sc7#
- 2.Qxb8#
- 2.axb8Q#
- 2.axb8S#
- 2.axb8B#
- 2.axb8R#
- 1...axb2!
- threat
- 1.Rxa3?
- Keys
- 1.Kg2!
- 1...Rxa7
- 2.Kxg3#
- 1...Rb3
- 2.Sc7#
- 1...Rb4
- 2.Sc7#
- 1...Rb5
- 2.Sc7#
- 1...Rb6
- 2.Sc7#
- 1...Rc7
- 2.Sxc7#
- 1...Rb8
- 2.Sc7#
- 2.axb8Q#
- 2.axb8S#
- 2.axb8B#
- 2.axb8R#
- 1...Ba1
- 2.Qxb7#
- 1...Bc1
- 2.Qxb7#
- 1...Bc3
- 2.Qxb7#
- 1...Bd4
- 2.Qxb7#
- 1...Be5
- 2.Qxb7#
- 1...Bf6
- 2.Qxb7#
- 1...Bg7
- 2.Qxb7#
- 1...Bh8
- 2.Qxb7#
- 1...Rxa7
- 1.Kg2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD,P_PINP(D)::S(J)
- R(e);N_GUARD::S(J)
- R(e);P_SPINR(e),XP(H)::B(B)+K(E),XP(d)
- R(e);N_GUARD::S(J),XR(e)
- B(a);OGATE::QAB1(A),XR(e)
- B(a);OGATE,SBLOCK::QAB1(A),XR(e)
- Tries
- Try
- R(F);XP(c)
- Vars
- R(e);P_SPINR(e),XP(H)::B(B)+K(E),XP(d)
- B(a);OGATE,XR(F)::QAB1(A),XR(e)
- R(e);N_GUARD,P_PINP(D)::S(J)
- R(e);N_GUARD::S(J)
- R(e);N_GUARD::S(J),XR(e)
- B(a);OGATE::QAB1(A),XR(e)
- B(a);OGATE,SBLOCK::QAB1(A),XR(e)
- Refutation
- P(d);
- Try
- R(F);
- Vars
- R(e);P_SPINR(e),XP(H)::B(B)+K(E),XP(d)
- R(e);N_GUARD,P_PINP(D)::S(J)
- R(e);N_GUARD::S(J)
- R(e);N_GUARD::S(J),XR(e)
- B(a);OGATE::QAB1(A),XR(e)
- B(a);OGATE,SBLOCK::QAB1(A),XR(e)
- Refutation
- P(d);
- Try
- R(F);
- Vars
- R(e);P_SPINR(e),XP(H)::B(B)+K(E),XP(d)
- R(e);N_GUARD,P_PINP(D)::S(J)
- R(e);N_GUARD::S(J)
- R(e);N_GUARD::S(J),XR(e)
- B(a);OGATE::QAB1(A),XR(e)
- B(a);OGATE,SBLOCK::QAB1(A),XR(e)
- Refutation
- P(d);
- Try
- Q(A);XB(a)
- Threat
- QAB1(A),XR(e)
- Vars
- R(e);N_GUARD,XQ(A)::S(J)
- R(e);N_GUARD,P_PINP(D)::S(J)
- R(e);N_GUARD::S(J)
- Refutation
- P(c);XQ(A)
- Try
- Actual
- K(E);S_FLIGHT
- Vars
- R(e);P_SPINR(e),XP(H)::B(B)+K(E),XP(d)
- R(e);N_GUARD::S(J)
- R(e);N_GUARD::S(J),XR(e)
- B(a);OGATE::QAB1(A),XR(e)
- B(a);OGATE,SBLOCK::QAB1(A),XR(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).