MESON Chess Problem Database
Problem Display
PID: 15784 (b3n2K/7Q/R3p3/2pkP3/N4P2/8/1B2B3/3r4 w - - 0 1)
Shire, David J
The Problemist, 1987
#2
8 + 6
| 702 | Phenix | 1988 |
| 702 | Phenix | 1991 |
| 3256 | David Shire Selected Chess Problems | 2001 |
| 136 | Problem Observer | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qd3#
- 1...Rb1
- 2.Qd3#
- 1...Rc1
- 2.Qd3#
- 1...Re1
- 2.Qd3#
- 1...Rf1
- 2.Qd3#
- 1...Rg1
- 2.Qd3#
- 1...Rh1
- 2.Qxh1#
- 1...Rd2
- 2.Qh1#
- 1...Rd3
- 2.Qxd3#
- 1...Rd4
- 2.Sc3#
- 1...Bc6
- 2.Sb6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Rd6#
- 1...Sc7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...c4
- 2.Bf3#
- 1...Ra1
- Tries
- 1.Bc3?
- 1...Rd3
- 2.Qxd3#
- 1...Rh1
- 2.Qxh1#
- 1...Ra1
- 2.Qd3#
- 1...Rb1
- 2.Qd3#
- 1...Rc1
- 2.Qd3#
- 1...Re1
- 2.Qd3#
- 1...Rf1
- 2.Qd3#
- 1...Rg1
- 2.Qd3#
- 1...Rd2
- 2.Qh1#
- 1...Bc6
- 2.Sb6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Rd6#
- 1...Sc7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...c4
- 2.Bf3#
- 1...Rd4!
- 1...Rd3
- 1.Bxd1?
- threat
- 2.Qd3#
- 1...c4
- 2.Bf3#
- 2.Qh1#
- 1...Kc4!
- threat
- 1.Bf1?
- threat
- 2.Qh1#
- 1...Rxf1
- 2.Qd3#
- 1...Rd3
- 2.Qxd3#
- 1...Re1
- 2.Qd3#
- 1...Rd4
- 2.Sc3#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Rd6#
- 1...Rd2!
- threat
- 1.Bd3?
- threat
- 2.Qe4#
- 1...Rxd3
- 2.Qxd3#
- 1...Rh1
- 2.Qxh1#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Rd6#
- 1...Re1!
- threat
- 1.Ra5?
- threat
- 2.Rxc5#
- 1...Kc6
- 2.Rxc5#
- 1...Rc1!
- threat
- 1.Rb6?
- 1...Rd3
- 2.Qxd3#
- 1...Rh1
- 2.Qxh1#
- 1...Ra1
- 2.Qd3#
- 1...Rb1
- 2.Qd3#
- 1...Rc1
- 2.Qd3#
- 1...Re1
- 2.Qd3#
- 1...Rf1
- 2.Qd3#
- 1...Rg1
- 2.Qd3#
- 1...Rd2
- 2.Qh1#
- 1...Rd4
- 2.Sc3#
- 1...Bb7
- 2.Qxb7#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Rd6#
- 1...Sc7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...c4
- 2.Bf3#
- 1...Bc6!
- 1...Rd3
- 1.Qc2?
- threat
- 2.Bf3#
- 2.Bc4#
- 2.Qc4#
- 1...Rd3
- 2.Qxd3#
- 1...Rc1
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 1...Re1
- 2.Bc4#
- 2.Qd3#
- 2.Qc4#
- 1...Rf1
- 2.Bc4#
- 2.Qd3#
- 2.Qc4#
- 1...Rd4
- 2.Sc3#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Bc4#
- 2.Rd6#
- 2.Qc4#
- 1...c4
- 2.Bf3#
- 2.Bxc4#
- 2.Qxc4#
- 1...Rh1+!
- threat
- 1.Qg6?
- threat
- 2.Qg2#
- 1...Rd3
- 2.Qxd3#
- 1...Rf1
- 2.Qd3#
- 1...Rg1
- 2.Qd3#
- 1...Rd4
- 2.Sc3#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Rd6#
- 1...Rh1+!
- threat
- 1.Bc3?
- Keys
- 1.Ba1!
- 1...Rxa1
- 2.Qd3#
- 1...Rd3
- 2.Qxd3#
- 1...Rb1
- 2.Qd3#
- 1...Rc1
- 2.Qd3#
- 1...Re1
- 2.Qd3#
- 1...Rf1
- 2.Qd3#
- 1...Rg1
- 2.Qd3#
- 1...Rh1
- 2.Qxh1#
- 1...Rd2
- 2.Qh1#
- 1...Rd4
- 2.Sc3#
- 1...Bc6
- 2.Sb6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Rd6#
- 1...Sc7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...c4
- 2.Bf3#
- 1...Rxa1
- 1.Ba1!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::QAR2(G)
- R(a);N_GUARD,P_PINQ(G)::QAB(G),XR(a)
- R(a);N_GUARD::QAB(G)
- R(a);N_GUARD::QAR2(G),XR(a)
- R(a);SBLOCK::S(C)
- B(e);SBLOCK::S(C)
- B(e);N_GUARD::QAB(G),XB(e)
- S(f);N_GUARD::R1(F),XS(f)
- S(f);N_GUARD::R1(F)
- P(b);SBLOCK::B(B)
- Tries
- Try
- B(A);
- Vars
- R(a);N_GUARD::QAR2(G),XR(a)
- R(a);N_GUARD,P_PINQ(G)::QAB(G),XR(a)
- R(a);N_GUARD::QAR2(G)
- R(a);N_GUARD::QAB(G)
- B(e);SBLOCK::S(C)
- B(e);N_GUARD::QAB(G),XB(e)
- S(f);N_GUARD::R1(F),XS(f)
- S(f);N_GUARD::R1(F)
- P(b);SBLOCK::B(B)
- Refutation
- R(a);
- Try
- B(B);XR(a)
- Threat
- QAR2(G)
- Refutation
- K(c);S_FLIGHT
- Try
- B(B);
- Threat
- QAB(G)
- Vars
- R(a);N_GUARD,XB(B)::QAR2(G)
- R(a);N_GUARD::QAR2(G),XR(a)
- R(a);N_GUARD::QAR2(G)
- R(a);SBLOCK::S(C)
- S(f);N_GUARD::R1(F),XS(f)
- S(f);N_GUARD::R1(F)
- Refutation
- R(a);
- Try
- B(B);
- Threat
- QAB1(G)
- Vars
- R(a);OGATE,XB(B)::QAR2(G),XR(a)
- R(a);N_GUARD,P_PINQ(G)::QAB(G),XR(a)
- S(f);N_GUARD::R1(F),XS(f)
- S(f);N_GUARD::R1(F)
- Refutation
- R(a);
- Try
- R(F);P_PINP(b)
- Threat
- R1(F),XP(b)
- Vars
- K(c);N_SPINP(b),S_FLIGHT::R1(F),XP(b)
- Refutation
- R(a);
- Try
- R(F);
- Vars
- R(a);N_GUARD::QAR2(G),XR(a)
- R(a);N_GUARD,P_PINQ(G)::QAB(G),XR(a)
- R(a);N_GUARD::QAR2(G)
- R(a);N_GUARD::QAB(G)
- R(a);SBLOCK::S(C)
- B(e);N_GUARD::QAB(G),XB(e)
- S(f);N_GUARD::R1(F),XS(f)
- S(f);N_GUARD::R1(F)
- P(b);SBLOCK::B(B)
- Refutation
- B(e);
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- R(a);N_GUARD::QAR2(G),XR(a)
- R(a);SBLOCK::S(C)
- S(f);N_GUARD::R1(F),XS(f)
- Refutation
- R(a);CHECK
- Try
- Q(G);
- Threat
- QAB(G)
- Vars
- R(a);N_GUARD::QAR2(G),XR(a)
- R(a);N_GUARD::QAR2(G)
- R(a);SBLOCK::S(C)
- S(f);N_GUARD::R1(F),XS(f)
- S(f);N_GUARD::R1(F)
- Refutation
- R(a);CHECK
- Try
- Actual
- B(A);
- Vars
- R(a);N_GUARD,XB(A)::QAR2(G)
- R(a);N_GUARD::QAR2(G),XR(a)
- R(a);N_GUARD::QAR2(G)
- R(a);N_GUARD,P_PINQ(G)::QAB(G),XR(a)
- R(a);N_GUARD::QAB(G)
- R(a);SBLOCK::S(C)
- B(e);SBLOCK::S(C)
- B(e);N_GUARD::QAB(G),XB(e)
- S(f);N_GUARD::R1(F),XS(f)
- S(f);N_GUARD::R1(F)
- P(b);SBLOCK::B(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).