MESON Chess Problem Database
Problem Display
PID: 60026 (1B6/8/B1pp3p/1r1k3K/n5Q1/3N4/4N3/4R3 w - - 0 1)
Beechey, H
Brisbane Courier, 1927
#2
7 + 6
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb2
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb3
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb4
- 2.Qf5#
- 1...Ra5
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rc5
- 2.Qf5#
- 1...Rb6
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb7
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rxb8
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...Rb1
- Tries
- 1.Kxh6?
- 1...Rxb8
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb1
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb2
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb3
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb4
- 2.Qf5#
- 1...Ra5
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rc5
- 2.Qf5#
- 1...Rb6
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb7
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...c5!
- 1...Rxb8
- 1.Sb4+?
- 1...Kc5
- 2.Qd4#
- 1...Rxb4
- 2.Qf5#
- 1...Ke5!
- 1...Kc5
- 1.Bxb5?
- threat
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 2.Qf5#
- 1...Sb6
- 2.Sc3#
- 2.Qf5#
- 1...c5
- 2.Qf5#
- 2.Qc4#
- 1...cxb5!
- threat
- 1.Bc8?
- threat
- 2.Be6#
- 2.Qe6#
- 2.Qd4#
- 1...Rb4
- 2.Be6#
- 2.Qe6#
- 1...Sc5
- 2.Sc3#
- 2.Qd4#
- 1...c5!
- threat
- 1.Ba7?
- 1...Rb4
- 2.Qf5#
- 1...Rb1
- 2.Sef4#
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb2
- 2.Sef4#
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb3
- 2.Sef4#
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Ra5
- 2.Sef4#
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rc5
- 2.Qf5#
- 1...Rb6
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb7
- 2.Sef4#
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb8
- 2.Sef4#
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...c5!
- 1...Rb4
- 1.Bc7?
- 1...Rb4
- 2.Qf5#
- 1...Rb1
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb2
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb3
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Ra5
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rc5
- 2.Qf5#
- 1...Rb6
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb7
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb8
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...c5!
- 1...Rb4
- 1.Ra1?
- 1...Rxb8
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb4
- 2.Qf5#
- 1...Rb1
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb2
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb3
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Ra5
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rc5
- 2.Qf5#
- 1...Rb6
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb7
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...c5!
- 1...Rxb8
- 1.Rb1?
- 1...Rxb1
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rxb8
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb4
- 2.Qf5#
- 1...Rb2
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb3
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Ra5
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rc5
- 2.Qf5#
- 1...Rb6
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb7
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...c5!
- 1...Rxb1
- 1.Rc1?
- threat
- 2.Qf5#
- 2.Qc4#
- 1...Rb4
- 2.Qf5#
- 1...Rc5
- 2.Qf5#
- 1...Sb2
- 2.Sc3#
- 2.Qf5#
- 1...Sc3
- 2.Sxc3#
- 1...Sb6
- 2.Sc3#
- 2.Qf5#
- 1...c5!
- threat
- 1.Rd1?
- 1...Rxb8
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb4
- 2.Qf5#
- 1...Rb1
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb2
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb3
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Ra5
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rc5
- 2.Qf5#
- 1...Rb6
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb7
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...c5!
- 1...Rxb8
- 1.Rf1?
- 1...Rxb8
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb4
- 2.Qf5#
- 1...Rb1
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb2
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb3
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Ra5
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rc5
- 2.Qf5#
- 1...Rb6
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb7
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...c5!
- 1...Rxb8
- 1.Rg1?
- 1...Rxb8
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb4
- 2.Qf5#
- 1...Rb1
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb2
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb3
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Ra5
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rc5
- 2.Qf5#
- 1...Rb6
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb7
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...c5!
- 1...Rxb8
- 1.Rh1?
- 1...Rxb8
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb4
- 2.Qf5#
- 1...Rb1
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb2
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb3
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Ra5
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rc5
- 2.Qf5#
- 1...Rb6
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Rb7
- 2.Bc4#
- 2.Qf5#
- 2.Qc4#
- 1...Sb2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sc5
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...c5!
- 1...Rxb8
- 1.Kxh6?
- Keys
- 1.Sc5!
- threat
- 2.Qd4#
- 1...Kxc5
- 2.Qd4#
- 1...Ke5
- 2.Qe6#
- 1...Rxc5
- 2.Qf5#
- 1...Sxc5
- 2.Sc3#
- 1...dxc5
- 2.Rd1#
- 1...Rb4
- 2.Qf5#
- threat
- 1.Sc5!
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Tries
- Try
- K(E);P-FLIGHT,XP(f)
- Vars
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(d);
- Try
- S(C);CHECK
- Vars
- K(c);P-FLIGHT::QAB1(D)
- R(b);XS(C)::QAR2(D)
- Refutation
- K(c);P-FLIGHT,P_SPINP(e)
- Try
- B(F);XR(b)
- Threat
- DUALS(3)
- Refutation
- P(d);XB(F)
- Try
- B(F);
- Threat
- DUALS(3)
- Refutation
- P(d);
- Try
- B(G);
- Vars
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(d);
- Try
- B(G);
- Vars
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(d);
- Try
- R(A);
- Vars
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(d);
- Try
- R(A);
- Vars
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(d);
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(d);
- Try
- R(A);
- Vars
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(d);
- Try
- R(A);
- Vars
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(d);
- Try
- R(A);
- Vars
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(d);
- Try
- R(A);
- Vars
- R(b);::QAR2(D)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- Refutation
- P(d);
- Try
- Actual
- S(C);
- Threat
- QAR1(D)
- Vars
- K(c);P-FLIGHT,XS(C)::QAB1(D)
- K(c);P-FLIGHT,P_SPINP(e)::QAR1(D)
- R(b);SBLOCK,XS(C)::QAR2(D)
- S(a);N_GUARD,SBLOCK,XS(C)::S(B)
- P(e);SBLOCK,XS(C)::R(A)
- R(b);::QAR2(D)
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).