MESON Chess Problem Database
Problem Display
PID: 100845 (8/1p6/1Q6/n1P5/2Rp4/p1pK4/k7/1R6 w - - 0 1)
Beach, Lennox F
Good Companions, 1921
#2
5 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Qxb3#
- 1...Sxc4
- 2.Qb3#
- 1...Sc6
- 2.Qb3#
- 1...c2
- 2.Rxc2#
- 1...Sb3
- Tries
- 1.Kc2?
- 1...Sxc4
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sc6
- 2.Qb3#
- 1...d3+!
- 1...Sxc4
- 1.Ke2?
- 1...Sxc4
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sc6
- 2.Qb3#
- 1...c2
- 2.Rxc2#
- 1...d3+!
- 1...Sxc4
- 1.Kxd4?
- 1...Sb3+
- 2.Qxb3#
- 1...Sxc4
- 2.Qb3#
- 1...c2
- 2.Rxc2#
- 1...Sc6+!
- 1...Sb3+
- 1.Ke4?
- 1...Sxc4
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sc6
- 2.Qb3#
- 1...c2
- 2.Rxc2#
- 1...d3!
- 1...Sxc4
- 1.Rc1?
- threat
- 2.Qb1#
- 1...c2
- 2.R4xc2#
- 1...Sb3!
- threat
- 1.Rd1?
- threat
- 2.Qb1#
- 1...c2
- 2.Rxc2#
- 1...Sb3!
- threat
- 1.Re1?
- threat
- 2.Qb1#
- 1...c2
- 2.Rxc2#
- 1...Sb3!
- threat
- 1.Rf1?
- threat
- 2.Qb1#
- 1...c2
- 2.Rxc2#
- 1...Sb3!
- threat
- 1.Rg1?
- threat
- 2.Qb1#
- 1...c2
- 2.Rxc2#
- 1...Sb3!
- threat
- 1.Rh1?
- threat
- 2.Qb1#
- 1...c2
- 2.Rxc2#
- 1...Sb3!
- threat
- 1.Rxc3?
- threat
- 2.Rc2#
- 1...Sb3
- 2.Qxb3#
- 1...Sc4
- 2.Qb3#
- 1...dxc3!
- threat
- 1.Rxd4?
- 1...Sb3
- 2.Qxb3#
- 1...Sc4
- 2.Qb3#
- 1...Sc6
- 2.Qb3#
- 1...c2!
- 1...Sb3
- 1.Qb5?
- 1...Sxc4
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...c2
- 2.Rxc2#
- 1...Sc6
- 2.Qb3#
- 1...b6!
- 1...Sxc4
- 1.Qxb7?
- 1...Sxc4
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...c2
- 2.Rxc2#
- 1...Sc6
- 2.Qb3#
- 1...Sxb7!
- 1...Sxc4
- 1.c6?
- 1...Sxc4
- 2.Qb3#
- 1...Sxc6
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...c2
- 2.Rxc2#
- 1...bxc6!
- 1...Sxc4
- 1.Kc2?
- Keys
- 1.Ra4!
- 1...Sb3
- 2.Qxb3#
- 1...Sc4
- 2.Qb3#
- 1...Sc6
- 2.Qb3#
- 1...c2
- 2.Qb2#
- 1...Sb3
- 1.Ra4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(e);N_GUARD::QAB1(E),XS(e)
- S(e);N_GUARD,XR(C)::QAB1(E)
- S(e);N_GUARD::QAB1(E)
- P(c);OGATE::R(C),XP(c)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- S(e);N_GUARD,XR(C)::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- S(e);N_GUARD::QAB1(E)
- Refutation
- P(d);CHECK
- Try
- K(B);S_FLIGHT
- Vars
- S(e);N_GUARD,XR(C)::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- S(e);N_GUARD::QAB1(E)
- P(c);OGATE::R(C),XP(c)
- Refutation
- P(d);CHECK
- Try
- K(B);P-FLIGHT,XP(d)
- Vars
- S(e);CHECK,N_GUARD::QAB1(E),XS(e)
- S(e);N_GUARD,XR(C)::QAB1(E)
- P(c);OGATE::R(C),XP(c)
- Refutation
- S(e);CHECK
- Try
- K(B);S_FLIGHT
- Vars
- S(e);N_GUARD,XR(C)::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- S(e);N_GUARD::QAB1(E)
- P(c);OGATE::R(C),XP(c)
- Refutation
- P(d);
- Try
- R(A);
- Threat
- QAB1(E)
- Vars
- P(c);OGATE::R(C),XP(c)
- Refutation
- S(e);
- Try
- R(A);
- Threat
- QAB1(E)
- Vars
- P(c);OGATE::R(C),XP(c)
- Refutation
- S(e);
- Try
- R(A);
- Threat
- QAB1(E)
- Vars
- P(c);OGATE::R(C),XP(c)
- Refutation
- S(e);
- Try
- R(A);
- Threat
- QAB1(E)
- Vars
- P(c);OGATE::R(C),XP(c)
- Refutation
- S(e);
- Try
- R(A);
- Threat
- QAB1(E)
- Vars
- P(c);OGATE::R(C),XP(c)
- Refutation
- S(e);
- Try
- R(A);
- Threat
- QAB1(E)
- Vars
- P(c);OGATE::R(C),XP(c)
- Refutation
- S(e);
- Try
- R(C);XP(c)
- Threat
- R(C)
- Vars
- S(e);N_GUARD::QAB1(E),XS(e)
- S(e);N_GUARD::QAB1(E)
- Refutation
- P(d);XR(C)
- Try
- R(C);XP(d)
- Vars
- S(e);N_GUARD::QAB1(E),XS(e)
- S(e);N_GUARD::QAB1(E)
- Refutation
- P(c);
- Try
- Q(E);
- Vars
- S(e);N_GUARD,XR(C)::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- P(c);OGATE::R(C),XP(c)
- S(e);N_GUARD::QAB1(E)
- Refutation
- P(f);
- Try
- Q(E);XP(f)
- Vars
- S(e);N_GUARD,XR(C)::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- P(c);OGATE::R(C),XP(c)
- S(e);N_GUARD::QAB1(E)
- Refutation
- S(e);XQ(E)
- Try
- P(D);
- Vars
- S(e);N_GUARD,XR(C)::QAB1(E)
- S(e);N_GUARD,XP(D)::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- P(c);OGATE::R(C),XP(c)
- Refutation
- P(f);XP(D)
- Try
- Actual
- R(C);P_PINP(b)
- Vars
- S(e);N_GUARD::QAB1(E),XS(e)
- S(e);N_GUARD::QAB1(E)
- P(c);N_GUARD::QAR1(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).