MESON Chess Problem Database
Problem Display
PID: 40472 (2K2B2/8/1p3p2/Qp1k1P2/2R1R3/r4N2/n7/br5B w - - 0 1)
Fegan, Bertram George
2nd Prize, Karlstadt Chess Club, 1912
#2
8 + 8
| 563 | Liverpool Courier | 1912 |
| 3360 | Simple Two-move Themes | 1924 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Qxb5#
- 1...Rd1
- 2.Qxb5#
- 1...Re1
- 2.Qxb5#
- 1...Rf1
- 2.Qxb5#
- 1...Rg1
- 2.Qxb5#
- 1...Rxh1
- 2.Qxb5#
- 1...Rb2
- 2.Red4#
- 1...Rb3
- 2.Qa8#
- 1...Rc3
- 2.Rd4#
- 2.Qa8#
- 1...Rd3
- 2.Qa8#
- 1...Re3
- 2.Qa8#
- 1...Rxf3
- 2.Qa8#
- 1...Bb2
- 2.Qxb5#
- 1...Bd4
- 2.Rexd4#
- 1...Sc3
- 2.Red4#
- 1...Sb4
- 2.Qxb5#
- 1...Rc1
- Tries
- 1.Rcd4+?
- 1...Kc6
- 2.Re6#
- 1...Bxd4!
- 1...Kc6
- 1.Qd2+?
- 1...Bd4
- 2.Rexd4#
- 2.Qxd4#
- 1...Rd3!
- 1...Bd4
- 1.Qxb6?
- threat
- 2.Qc5#
- 2.Qd8#
- 2.Qc6#
- 2.Qd6#
- 2.Qe6#
- 2.Qb7#
- 1...bxc4
- 2.Qe6#
- 1...Bd4
- 2.Rcxd4#
- 2.Rexd4#
- 2.Qxd4#
- 2.Qc6#
- 2.Qe6#
- 1...Ra6
- 2.Qc5#
- 1...Ra7
- 2.Qc5#
- 2.Qc6#
- 2.Qd6#
- 2.Qe6#
- 1...Be5
- 2.Qc5#
- 2.Qc6#
- 2.Qe6#
- 2.Qb7#
- 1...Sb4
- 2.Qc5#
- 2.Qd8#
- 2.Qxb5#
- 2.Qd6#
- 2.Qe6#
- 1...Ra8+!
- threat
- 1.Qxa3?
- threat
- 2.Qd6#
- 2.Qa8#
- 1...bxc4
- 2.Qa8#
- 1...Bd4
- 2.Rexd4#
- 1...Rb4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...b4
- 2.Qa8#
- 1...Sb4!
- threat
- 1.Qa6?
- threat
- 2.Qb7#
- 1...Bd4
- 2.Rexd4#
- 1...Sb4
- 2.Qxb5#
- 1...Rxa6!
- threat
- 1.Qa7?
- threat
- 2.Qb7#
- 2.Qd7#
- 2.Qf7#
- 1...bxc4
- 2.Qb7#
- 1...Bd4
- 2.Rexd4#
- 1...Be5
- 2.Qb7#
- 2.Qf7#
- 1...Sb4
- 2.Qd7#
- 2.Qf7#
- 1...Rxa7!
- threat
- 1.Rcd4+?
- Keys
- 1.Se5!
- 1...Rxh1
- 2.Qxb5#
- 1...Rxa5
- 2.Re1#
- 1...Bxe5
- 2.Red4#
- 1...bxa5
- 2.Rc5#
- 1...fxe5
- 2.Red4#
- 1...Rc1
- 2.Qxb5#
- 1...Rd1
- 2.Qxb5#
- 1...Re1
- 2.Qxb5#
- 1...Rf1
- 2.Qxb5#
- 1...Rg1
- 2.Qxb5#
- 1...Rb2
- 2.Rcd4#
- 1...Rbb3
- 2.Re3#
- 1...Rb4
- 2.Re3#
- 1...Rab3
- 2.Qa8#
- 1...Rc3
- 2.Qa8#
- 1...Rd3
- 2.Qa8#
- 1...Re3
- 2.Qa8#
- 1...Rf3
- 2.Qa8#
- 1...Rg3
- 2.Qa8#
- 1...Rh3
- 2.Qa8#
- 1...Ra4
- 2.Re1#
- 1...Bb2
- 2.Qxb5#
- 1...Bc3
- 2.Re1#
- 1...Bd4
- 2.Rcxd4#
- 1...Sc1
- 2.Re3#
- 1...Sc3
- 2.Rcd4#
- 1...Sb4
- 2.Qxb5#
- 1...Rxh1
- 1.Se5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD,P_PINR(C)::QAR2(E),XP(e)
- R(b);N_GUARD::QAR2(E),XP(e)
- R(b);N_GUARD,XB(A)::QAR2(E),XP(e)
- R(b);S_CUTB(a)::R1(D)
- R(d);N_GUARD::QAB(E)
- R(d);N_GUARD,XS(B)::QAB(E)
- B(a);S_CUTR(b)::QAR2(E),XP(e)
- B(a);N_GUARD::R1(D),XB(a)
- S(c);S_CUTB(a)::R1(D)
- S(c);S_CUTR(b)::QAR2(E),XP(e)
- Tries
- Try
- R(C);CHECK
- Vars
- K(f);N_SPINP(e),S_FLIGHT::R(D)
- Refutation
- B(a);XR(C)
- Try
- Q(E);CHECK,N_PINP(e)
- Refutation
- R(d);P_SPINR(d)
- Try
- Q(E);N_PINP(e),XP(g)
- Threat
- DUALS(6)
- Vars
- P(e);XR(C)::QAB1(E)
- R(d);::QAR1(E)
- Refutation
- R(d);CHECK
- Try
- Q(E);N_PINP(e),XR(d)
- Threat
- DUALS(2)
- Vars
- P(e);XR(C)::QAB(E)
- B(a);N_GUARD::R1(D),XB(a)
- R(b);::QAB(E)
- B(a);::QAB(E)
- P(e);::QAB(E)
- Refutation
- S(c);
- Try
- Q(E);N_PINP(e)
- Threat
- QAB(E)
- Vars
- B(a);N_GUARD::R1(D),XB(a)
- S(c);S_CUTR(b)::QAR2(E),XP(e)
- Refutation
- R(d);XQ(E)
- Try
- Q(E);N_PINP(e)
- Threat
- DUALS(3)
- Vars
- P(e);XR(C)::QAB(E)
- B(a);N_GUARD::R1(D),XB(a)
- Refutation
- R(d);XQ(E)
- Try
- Actual
- S(B);
- Vars
- R(b);N_GUARD,XB(A)::QAR2(E),XP(e)
- R(d);N_GUARD,N_SPINP(e),XQ(E)::B(A)+R(D)
- B(a);SBLOCK,XS(B)::B(A)+R(D),DCHECK
- P(g);N_GUARD,N_SPINP(e),XQ(E)::R1(C)
- P(h);SBLOCK,XS(B)::B(A)+R(D),DCHECK
- R(b);N_GUARD,P_PINR(C)::QAR2(E),XP(e)
- R(b);N_GUARD::QAR2(E),XP(e)
- R(b);S_CUTB(a)::R1(C)
- R(b);N_GUARD::B(A)+R(D)
- R(d);N_GUARD::QAB(E)
- R(d);N_GUARD,P_PINR(C)::QAB(E)
- R(d);N_GUARD::B(A)+R(D)
- B(a);S_CUTR(b)::QAR2(E),XP(e)
- B(a);S_CUTR(d)::B(A)+R(D)
- B(a);N_GUARD::R1(C),XB(a)
- S(c);S_CUTR(b)::B(A)+R(D)
- S(c);S_CUTB(a)::R1(C)
- S(c);S_CUTR(b)::QAR2(E),XP(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).