MESON Chess Problem Database
Problem Display
PID: 33191 (2QK4/5P2/4B1p1/N7/p2p4/n1Nk2r1/4RR2/8 w - - 0 1)
Bonner Feast, Frederick
1st Prize, Good Companions (February), 1924
#2
8 + 6
| 3360 | Simple Two-move Themes | 1924 |
| 145 | StrateGems | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb5
- 2.Qc4#
- 1...dxc3
- 2.Qd7#
- 1...g5
- 2.Bf5#
- 1...Rg1
- Tries
- 1.Ke7?
- 1...dxc3
- 2.Qd7#
- 2.Qd8#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 1...Rh3!
- 1...dxc3
- 1.Ke8?
- 1...dxc3
- 2.Qd7#
- 2.Qd8#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 1...Rh3!
- 1...dxc3
- 1.Sd1?
- threat
- 2.Sb2#
- 1...Sc4
- 2.Bxc4#
- 2.Qxc4#
- 1...Re3!
- threat
- 1.Sa2?
- threat
- 2.Sc1#
- 2.Sb4#
- 1...Rg1
- 2.Sb4#
- 1...Sc2
- 2.Sc1#
- 2.Bc4#
- 2.Qa6#
- 2.Qxc2#
- 2.Qc4#
- 1...Sc4
- 2.Bxc4#
- 2.Qxc4#
- 1...Re3!
- threat
- 1.Sxa4?
- threat
- 2.Sb2#
- 1...Sc4
- 2.Bxc4#
- 2.Qxc4#
- 1...Re3!
- threat
- 1.Sd5?
- threat
- 2.Sb4#
- 2.Sf4#
- 1...Rf3
- 2.Sb4#
- 1...Rg4
- 2.Sb4#
- 1...Sc2
- 2.Sf4#
- 2.Qa6#
- 2.Qxc2#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...g5
- 2.Sb4#
- 2.Bf5#
- 1...Re3!
- threat
- 1.Sb3?
- threat
- 2.Sc1#
- 1...dxc3
- 2.Qd7#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...axb3!
- threat
- 1.Sc4?
- threat
- 2.Sb2#
- 2.Se5#
- 1...Sxc4
- 2.Qxc4#
- 1...dxc3
- 2.Qd7#
- 1...Re3
- 2.Sb2#
- 1...Rg5
- 2.Sb2#
- 2.Rf3#
- 1...Kxc3!
- threat
- 1.Sb7?
- 1...dxc3
- 2.Qd7#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 1...Rh3!
- 1...dxc3
- 1.Ba2?
- 1...dxc3
- 2.Qd7#
- 1...Sc4
- 2.Qxc4#
- 1...Rh3
- 2.Qxh3#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Sb1
- 2.Bxb1#
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Bb1#
- 2.Qc4#
- 1...g5!
- 1...dxc3
- 1.Bc4+?
- 1...Sxc4
- 2.Qxc4#
- 1...Kxc3!
- 1...Sxc4
- 1.Bg4?
- 1...Rxg4
- 2.Rf3#
- 1...dxc3
- 2.Qd7#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 1...Rh3!
- 1...Rxg4
- 1.Bd5?
- threat
- 2.Be4#
- 1...Sc4
- 2.Qxc4#
- 1...Re3
- 2.Rd2#
- 1...Rg4
- 2.Rf3#
- 1...dxc3!
- threat
- 1.Rf1?
- threat
- 2.Rd1#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...Sb1
- 2.Qc4#
- 1...dxc3!
- threat
- 1.Qc5?
- 1...dxc3
- 2.Qd6#
- 2.Qd5#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 1...Rh3!
- 1...dxc3
- 1.Qc6?
- 1...dxc3
- 2.Qe4#
- 2.Qd5#
- 2.Qd7#
- 2.Qd6#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 2.Qf3#
- 1...Rg2
- 2.Rf3#
- 2.Qf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 2.Qxf3#
- 1...Rg4
- 2.Rf3#
- 2.Qf3#
- 1...Rg5
- 2.Rf3#
- 2.Qf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 1...Rh3!
- 1...dxc3
- 1.Qc7?
- threat
- 2.Qxg3#
- 1...dxc3
- 2.Qd6#
- 2.Qd7#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Sc2
- 2.Qc4#
- 1...Rh3!
- threat
- 1.f8Q?
- 1...dxc3
- 2.Qd7#
- 2.Qd6#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 2.Qf3#
- 1...Rg2
- 2.Rf3#
- 2.Qf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 2.Qxf3#
- 1...Rg4
- 2.Rf3#
- 2.Qf3#
- 1...Rg5
- 2.Rf3#
- 2.Qf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 2.Qf5#
- 1...Rh3!
- 1...dxc3
- 1.f8S?
- 1...dxc3
- 2.Qd7#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 1...Rh3!
- 1...dxc3
- 1.f8B?
- 1...dxc3
- 2.Qd7#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 1...Rh3!
- 1...dxc3
- 1.f8R?
- 1...dxc3
- 2.Qd7#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.R2f3#
- 2.R8f3#
- 1...Rg2
- 2.R2f3#
- 2.R8f3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.R2xf3#
- 2.R8xf3#
- 1...Rg4
- 2.R2f3#
- 2.R8f3#
- 1...Rg5
- 2.R2f3#
- 2.R8f3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 1...Rh3!
- 1...dxc3
- 1.Ke7?
- Keys
- 1.Bh3!
- 1...Rxh3
- 2.Qxh3#
- 1...dxc3
- 2.Qd7#
- 1...Sc4
- 2.Qxc4#
- 1...Rg1
- 2.Rf3#
- 1...Rg2
- 2.Rf3#
- 1...Re3
- 2.Rd2#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rf3#
- 1...Rg5
- 2.Rf3#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sb5
- 2.Qc4#
- 1...g5
- 2.Bf5#
- 1...Rxh3
- 1.Bh3!
This is a version
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD::R(B)
- R(c);SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- P(e);OGATEB,SBLOCK,XS(C)::QAR(G)
- P(f);N_GUARD::B(E)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- R(c);P_PINB(E),SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- P(f);N_GUARD::B(E)
- Refutation
- R(c);
- Try
- K(H);P-FLIGHT
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- R(c);P_PINB(E),SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- P(f);N_GUARD::B(E)
- Refutation
- R(c);
- Try
- S(C);
- Threat
- S(C)
- Refutation
- R(c);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(c);::S(C)
- Refutation
- R(c);
- Try
- S(C);XP(d)
- Threat
- S(C)
- Refutation
- R(c);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(c);::S(C)
- S(a);N_GUARD::QAB1(G),XS(a)
- Refutation
- R(c);
- Try
- S(D);
- Threat
- S(D)
- Vars
- P(e);OGATEB,SBLOCK,XS(C)::QAR(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- Refutation
- P(d);XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(a);OGATE,XS(D)::QAB1(G),XS(a)
- P(e);OGATEB,SBLOCK,XS(C)::QAR(G)
- R(c);::S(D)
- Refutation
- K(b);P-FLIGHT,XS(C)
- Try
- S(D);
- Vars
- P(e);OGATEB,SBLOCK,XS(C)::QAR(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- R(c);SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- P(f);N_GUARD::B(E)
- Refutation
- R(c);
- Try
- B(E);
- Vars
- P(e);OGATEB,SBLOCK,XS(C)::QAR(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);OGATEB::QAR(G),XR(c)
- R(c);N_GUARD::R(B)
- R(c);SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- Refutation
- P(f);
- Try
- B(E);CHECK
- Vars
- S(a);OGATE,XB(E)::QAB1(G),XS(a)
- Refutation
- K(b);P-FLIGHT,XS(C)
- Try
- B(E);
- Vars
- R(c);N_GUARD,XB(E)::R(B)
- P(e);OGATEB,SBLOCK,XS(C)::QAR(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- R(c);SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- P(f);N_GUARD::B(E)
- Refutation
- R(c);
- Try
- B(E);
- Threat
- B(E)
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);SBLOCK::R1(A)
- R(c);N_GUARD::R(B)
- Refutation
- P(e);XS(C)
- Try
- R(B);
- Threat
- R(B)
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- S(a);N_GUARD::QAB1(G)
- Refutation
- P(e);XS(C)
- Try
- Q(G);
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- R(c);SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- P(f);N_GUARD::B(E)
- Refutation
- R(c);
- Try
- Q(G);
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);SBLOCK::R1(A)
- S(a);N_GUARD::QAB1(G)
- P(f);N_GUARD::B(E)
- Refutation
- R(c);
- Try
- Q(G);
- Threat
- QAR(G),XR(c)
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- R(c);SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- Refutation
- R(c);
- Try
- P(F);
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);SBLOCK::R1(A)
- S(a);N_GUARD::QAB1(G)
- Refutation
- R(c);
- Try
- P(F);
- Vars
- P(e);OGATEB,SBLOCK,XS(C)::QAR(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- R(c);SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- P(f);N_GUARD::B(E)
- Refutation
- R(c);
- Try
- P(F);
- Vars
- P(e);OGATEB,SBLOCK,XS(C)::QAR(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- R(c);SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- P(f);N_GUARD::B(E)
- Refutation
- R(c);
- Try
- P(F);
- Vars
- P(e);OGATEB,SBLOCK,XS(C)::QAR(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);SBLOCK::R1(A)
- S(a);N_GUARD::QAB1(G)
- P(f);N_GUARD::B(E)
- Refutation
- R(c);
- Try
- Actual
- B(E);
- Vars
- R(c);OGATE,XB(E)::QAR(G),XR(c)
- P(e);OGATEB,SBLOCK,XS(C)::QAR(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- R(c);N_GUARD::R(B)
- R(c);SBLOCK::R1(A)
- R(c);N_GUARD::R(B),XR(c)
- S(a);N_GUARD::QAB1(G)
- P(f);N_GUARD::B(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).