MESON Chess Problem Database
Problem Display
PID: 51167 (8/8/B5PK/1N6/2r2B2/3r1p1N/1nPPkppR/1RQ5 w - - 0 1)
Allison, Christopher John
Manchester Guardian, 1952
#2
11 + 7
| 15148 | Sadier Collection | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Rxd2
- 2.Sc3#
- 2.Qxd2#
- 1...Ra3
- 2.Sd4#
- 1...Rb3
- 2.Sd4#
- 1...Rdc3
- 2.Sxc3#
- 2.Sd4#
- 1...Re3
- 2.Sd4#
- 1...Rdd4
- 2.Sc3#
- 2.Sxd4#
- 1...Rd5
- 2.Sc3#
- 1...Rd6
- 2.Sc3#
- 1...Rd7
- 2.Sc3#
- 1...Rd8
- 2.Sc3#
- 1...Rxc2
- 2.Sd4#
- 1...Rcc3
- 2.Sxc3#
- 2.Sd4#
- 1...Ra4
- 2.Sc3#
- 1...Rb4
- 2.Sc3#
- 1...Rcd4
- 2.Sc3#
- 2.Sxd4#
- 1...Re4
- 2.Sc3#
- 1...Rxf4
- 2.Sxf4#
- 2.Sc3#
- 1...Rc5
- 2.Sd4#
- 1...Rc6
- 2.Sd4#
- 1...Rc7
- 2.Sd4#
- 1...Rc8
- 2.Sd4#
- 1...Sd1
- 2.Qxd1#
- 1...Sa4
- 2.Qd1#
- 1...f1Q
- 2.Qxf1#
- 1...f1S
- 2.Qe1#
- 2.Qxf1#
- 1...f1B
- 2.Qe1#
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...g1Q
- 2.Sxg1#
- 1...g1S
- 2.Sxg1#
- 2.Rxf2#
- 2.Qe1#
- 2.Qf1#
- 1...g1B
- 2.Sxg1#
- 2.Qe1#
- 2.Qf1#
- 1...g1R
- 2.Sxg1#
- 2.Rxf2#
- 1...Rxd2
- Tries
- 1.Be3?
- 1...Rxd2
- 2.Qxd2#
- 1...Rxe3
- 2.Sd4#
- 1...Rxc2
- 2.Sf4#
- 2.Sd4#
- 1...Sd1
- 2.Qxd1#
- 1...f1Q
- 2.Qxf1#
- 1...f1S
- 2.Sg1#
- 2.Qe1#
- 2.Qxf1#
- 1...f1B
- 2.Sg1#
- 2.Qe1#
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...g1Q
- 2.Sxg1#
- 1...g1S
- 2.Sxg1#
- 2.Rxf2#
- 2.Qe1#
- 2.Qf1#
- 1...g1B
- 2.Sxg1#
- 2.Qe1#
- 2.Qf1#
- 1...g1R
- 2.Sxg1#
- 2.Rxf2#
- 1...Ra3
- 2.Sd4#
- 1...Rb3
- 2.Sd4#
- 1...Rdc3
- 2.Sxc3#
- 2.Sd4#
- 1...Rdd4
- 2.Sc3#
- 2.Sxd4#
- 1...Rd5
- 2.Sc3#
- 1...Rd6
- 2.Sc3#
- 1...Rd7
- 2.Sc3#
- 1...Rd8
- 2.Sc3#
- 1...Rcc3
- 2.Sf4#
- 2.Sxc3#
- 2.Sd4#
- 1...Ra4
- 2.Sc3#
- 1...Rb4
- 2.Sc3#
- 1...Rcd4
- 2.Sc3#
- 2.Sxd4#
- 1...Re4
- 2.Sc3#
- 1...Rf4
- 2.Sxf4#
- 2.Sc3#
- 1...Rg4
- 2.Sc3#
- 1...Rc5
- 2.Sf4#
- 2.Sd4#
- 1...Rc6
- 2.Sf4#
- 2.Sd4#
- 1...Rc7
- 2.Sf4#
- 2.Sd4#
- 1...Rc8
- 2.Sf4#
- 2.Sd4#
- 1...Sa4
- 2.Qd1#
- 1...Rh4+!
- 1...Rxd2
- 1.Bg5?
- 1...Rxd2
- 2.Sc3#
- 2.Qxd2#
- 1...Rxc2
- 2.Sf4#
- 2.Sd4#
- 1...Sd1
- 2.Qxd1#
- 1...f1Q
- 2.Qxf1#
- 1...f1S
- 2.Qe1#
- 2.Qxf1#
- 1...f1B
- 2.Qe1#
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...g1Q
- 2.Sxg1#
- 1...g1S
- 2.Sxg1#
- 2.Rxf2#
- 2.Qe1#
- 2.Qf1#
- 1...g1B
- 2.Sxg1#
- 2.Qe1#
- 2.Qf1#
- 1...g1R
- 2.Sxg1#
- 2.Rxf2#
- 1...Ra3
- 2.Sd4#
- 1...Rb3
- 2.Sd4#
- 1...Rdc3
- 2.Sxc3#
- 2.Sd4#
- 1...Re3
- 2.Sd4#
- 1...Rdd4
- 2.Sc3#
- 2.Sxd4#
- 1...Rd5
- 2.Sc3#
- 1...Rd6
- 2.Sc3#
- 1...Rd7
- 2.Sc3#
- 1...Rd8
- 2.Sc3#
- 1...Rcc3
- 2.Sf4#
- 2.Sxc3#
- 2.Sd4#
- 1...Ra4
- 2.Sc3#
- 1...Rb4
- 2.Sc3#
- 1...Rcd4
- 2.Sc3#
- 2.Sxd4#
- 1...Re4
- 2.Sc3#
- 1...Rf4
- 2.Sxf4#
- 2.Sc3#
- 1...Rg4
- 2.Sc3#
- 1...Rc5
- 2.Sf4#
- 2.Sd4#
- 1...Rc6
- 2.Sf4#
- 2.Sd4#
- 1...Rc7
- 2.Sf4#
- 2.Sd4#
- 1...Rc8
- 2.Sf4#
- 2.Sd4#
- 1...Sa4
- 2.Qd1#
- 1...Rh4+!
- 1...Rxd2
- 1.Rxg2?
- threat
- 2.Sg1#
- 2.Rxf2#
- 2.Qe1#
- 2.Qf1#
- 1...Rxf4
- 2.Sg1#
- 2.Sxf4#
- 2.Sc3#
- 2.Rxf2#
- 2.Qe1#
- 1...Sd1
- 2.Qxd1#
- 1...Re3
- 2.Sg1#
- 2.Sd4#
- 2.Rxf2#
- 2.Qe1#
- 1...fxg2!
- threat
- 1.Be3?
- Keys
- 1.Ra1!
- 1...Rxd2
- 2.Sc3#
- 2.Qxd2#
- 1...Rxc2
- 2.Sd4#
- 1...Rxf4
- 2.Sxf4#
- 2.Sc3#
- 1...Sd1
- 2.Qxd1#
- 1...f1Q
- 2.Qxf1#
- 1...f1S
- 2.Qe1#
- 2.Qxf1#
- 1...f1B
- 2.Qe1#
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...g1Q
- 2.Sxg1#
- 1...g1S
- 2.Sxg1#
- 2.Rxf2#
- 2.Qe1#
- 2.Qf1#
- 1...g1B
- 2.Sxg1#
- 2.Qe1#
- 2.Qf1#
- 1...g1R
- 2.Sxg1#
- 2.Rxf2#
- 1...Ra3
- 2.Sd4#
- 1...Rb3
- 2.Sd4#
- 1...Rdc3
- 2.Sxc3#
- 2.Sd4#
- 1...Re3
- 2.Sd4#
- 1...Rdd4
- 2.Sc3#
- 2.Sxd4#
- 1...Rd5
- 2.Sc3#
- 1...Rd6
- 2.Sc3#
- 1...Rd7
- 2.Sc3#
- 1...Rd8
- 2.Sc3#
- 1...Rcc3
- 2.Sxc3#
- 2.Sd4#
- 1...Ra4
- 2.Sc3#
- 1...Rb4
- 2.Sc3#
- 1...Rcd4
- 2.Sc3#
- 2.Sxd4#
- 1...Re4
- 2.Sc3#
- 1...Rc5
- 2.Sd4#
- 1...Rc6
- 2.Sd4#
- 1...Rc7
- 2.Sd4#
- 1...Rc8
- 2.Sd4#
- 1...Sa4
- 2.Qd1#
- 1...Rxd2
- 1.Ra1!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD,S_CUTR(g)::S(H)
- R(e);N_GUARD,P_PINP(J),S_CUTR(g)::S(H)
- R(g);N_GUARD,S_CUTR(e),XP(C)::S(H)
- R(g);N_GUARD,S_CUTR(e)::S(H)
- R(g);N_GUARD,P_PINP(J),S_CUTR(e)::S(H)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(a);N_GUARD::QAB1(B)
- P(c);P_SPINP(d)::QAB1(B),XQ(c)
- P(c);P_SPINP(d)::QAB1(B),XR(c)
- P(d);P_SPINP(c)::S(F),XQ(d)
- Tries
- Try
- B(G);
- Vars
- R(e);OGATE,XP(D)::QAR1(B),XR(e)
- R(e);N_GUARD,S_CUTR(g),XB(G)::S(H)
- S(a);N_GUARD::QAB1(B),XS(a)
- P(c);P_SPINP(d)::QAB1(B),XQ(c)
- P(c);P_SPINP(d)::QAB1(B),XR(c)
- P(d);P_SPINP(c)::S(F),XQ(d)
- R(e);N_GUARD,S_CUTR(g)::S(H)
- R(e);N_GUARD,P_PINP(J),S_CUTR(g)::S(H)
- R(g);N_GUARD,S_CUTR(e)::S(H)
- S(a);N_GUARD::QAB1(B)
- Refutation
- R(g);CHECK
- Try
- B(G);
- Vars
- S(a);N_GUARD::QAB1(B),XS(a)
- P(c);P_SPINP(d)::QAB1(B),XQ(c)
- P(c);P_SPINP(d)::QAB1(B),XR(c)
- P(d);P_SPINP(c)::S(F),XQ(d)
- R(e);N_GUARD,S_CUTR(g)::S(H)
- R(e);N_GUARD,P_PINP(J),S_CUTR(g)::S(H)
- R(g);N_GUARD,S_CUTR(e)::S(H)
- S(a);N_GUARD::QAB1(B)
- Refutation
- R(g);CHECK
- Try
- R(E);P_PINP(c),XP(d)
- Threat
- DUALS(4)
- Vars
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- P(f);N_SPINP(c),XR(E)
- Try
- Actual
- R(A);
- Vars
- R(g);N_GUARD,S_CUTR(e),XP(C)::S(H)
- S(a);N_GUARD::QAB1(B),XS(a)
- P(c);P_SPINP(d)::QAB1(B),XQ(c)
- P(c);P_SPINP(d)::QAB1(B),XR(c)
- P(d);P_SPINP(c)::S(F),XQ(d)
- R(e);N_GUARD,S_CUTR(g)::S(H)
- R(e);N_GUARD,P_PINP(J),S_CUTR(g)::S(H)
- R(g);N_GUARD,S_CUTR(e)::S(H)
- R(g);N_GUARD,P_PINP(J),S_CUTR(e)::S(H)
- S(a);N_GUARD::QAB1(B)
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).