MESON Chess Problem Database
Problem Display
PID: 214519 (1K4n1/3b3N/7Q/2p2n1r/2P1k1B1/1R1R2B1/8/5r1N w - - 0 1)
Rhaun, WH
Brownson's Chess Journal, 1877
#2
9 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rb1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rc1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rd1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Re1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rg1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rfxh1
- 2.Bf3#
- 2.Qf4#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Bxf3#
- 1...Rf4
- 2.Qxf4#
- 1...Rhxh1
- 2.Sg5#
- 1...Rh2
- 2.Sg5#
- 1...Rh3
- 2.Sg5#
- 1...Rh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 1...Rxh6
- 2.Sg5#
- 1...Ba4
- 2.Qe6#
- 1...Bb5
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 2.Qe6#
- 1...Be6
- 2.Qxe6#
- 1...Bc8
- 2.Qc6#
- 1...Be8
- 2.Qe6#
- 1...Se3
- 2.Qxe3#
- 1...Sxg3
- 2.Qe3#
- 1...Sd4
- 2.Re3#
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sfe7
- 2.Qe3#
- 1...Sg7
- 2.Qe3#
- 1...Sf6
- 2.Sxf6#
- 1...Sxh6
- 2.Sf6#
- 1...Sge7
- 2.Sf6#
- 1...Ra1
- Tries
- 1.Kc7?
- 1...Rfxh1
- 2.Bf3#
- 2.Qf4#
- 1...Rhxh1
- 2.Sg5#
- 1...Rxh6
- 2.Sg5#
- 1...Sxg3
- 2.Qe3#
- 1...Sgxh6
- 2.Sf6#
- 1...Rf4
- 2.Qxf4#
- 1...Ra1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rb1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rc1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rd1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Re1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rg1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Bxf3#
- 1...Rh2
- 2.Sg5#
- 1...Rh3
- 2.Sg5#
- 1...Rh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 1...Ba4
- 2.Qe6#
- 1...Bb5
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 2.Qe6#
- 1...Be6
- 2.Qxe6#
- 1...Bc8
- 2.Qc6#
- 1...Be8
- 2.Qe6#
- 1...Se3
- 2.Qxe3#
- 1...Sd4
- 2.Re3#
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sfe7
- 2.Qe3#
- 1...Sg7
- 2.Qe3#
- 1...Sf6
- 2.Sxf6#
- 1...Sge7
- 2.Sf6#
- 1...Sfxh6!
- 1...Rfxh1
- 1.Bd6?
- 1...Rfxh1
- 2.Bf3#
- 2.Qf4#
- 1...Rhxh1
- 2.Sg5#
- 1...Rxh6
- 2.Sg5#
- 1...Sxd6
- 2.Qe3#
- 1...Sfxh6
- 2.Sg3#
- 1...Sgxh6
- 2.Sf6#
- 1...Ra1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rb1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rc1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rd1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Re1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rg1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Bxf3#
- 1...Rf4
- 2.Qxf4#
- 1...Rh2
- 2.Sg5#
- 1...Rh3
- 2.Sg5#
- 1...Rh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 1...Ba4
- 2.Qe6#
- 1...Bb5
- 2.Qe6#
- 1...Bc6
- 2.Qe6#
- 1...Be6
- 2.Qxe6#
- 1...Be8
- 2.Qe6#
- 1...Se3
- 2.Sg3#
- 2.Qxe3#
- 1...Sg3
- 2.Sxg3#
- 2.Qe3#
- 1...Sd4
- 2.Sg3#
- 2.Re3#
- 2.Qe3#
- 1...Sh4
- 2.Sg3#
- 2.Qe3#
- 1...Sfe7
- 2.Sg3#
- 2.Qe3#
- 1...Sg7
- 2.Sg3#
- 2.Qe3#
- 1...Sf6
- 2.Sxf6#
- 1...Sge7
- 2.Sf6#
- 1...Bc8!
- 1...Rfxh1
- 1.Bxf5+?
- 1...Rfxf5
- 2.Qe3#
- 1...Rhxf5
- 2.Qe3#
- 1...Bxf5
- 2.Qe3#
- 2.Qc6#
- 1...Kxf5!
- 1...Rfxf5
- 1.Rd1?
- 1...Rxd1
- 2.Qf4#
- 1...Rfxh1
- 2.Bf3#
- 2.Qf4#
- 1...Rhxh1
- 2.Sg5#
- 1...Rxh6
- 2.Sg5#
- 1...Sxg3
- 2.Re3#
- 2.Qe3#
- 1...Sgxh6
- 2.Sf6#
- 1...Rf4
- 2.Qxf4#
- 1...Re1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rg1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Bxf3#
- 1...Rh2
- 2.Sg5#
- 1...Rh3
- 2.Sg5#
- 1...Rh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 1...Ba4
- 2.Qe6#
- 1...Bb5
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 2.Qe6#
- 1...Be6
- 2.Qxe6#
- 1...Bc8
- 2.Qc6#
- 1...Be8
- 2.Qe6#
- 1...Se3
- 2.Rxe3#
- 2.Qxe3#
- 1...Sd4
- 2.Re3#
- 2.Qe3#
- 1...Sh4
- 2.Re3#
- 2.Qe3#
- 1...Sd6
- 2.Re3#
- 2.Qe3#
- 1...Sfe7
- 2.Re3#
- 2.Qe3#
- 1...Sg7
- 2.Re3#
- 2.Qe3#
- 1...Sf6
- 2.Sxf6#
- 1...Sge7
- 2.Sf6#
- 1...Sfxh6!
- 1...Rxd1
- 1.Rd2?
- 1...Rfxh1
- 2.Bf3#
- 2.Qf4#
- 1...Rhxh1
- 2.Sg5#
- 1...Rxh6
- 2.Sg5#
- 1...Sxg3
- 2.Re3#
- 2.Qe3#
- 1...Sgxh6
- 2.Sf6#
- 1...Rf4
- 2.Qxf4#
- 1...Ra1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rb1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rc1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rd1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Re1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rg1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Bxf3#
- 1...Rh2
- 2.Sg5#
- 1...Rh3
- 2.Sg5#
- 1...Rh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 1...Ba4
- 2.Qe6#
- 1...Bb5
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 2.Qe6#
- 1...Be6
- 2.Qxe6#
- 1...Bc8
- 2.Qc6#
- 1...Be8
- 2.Qe6#
- 1...Se3
- 2.Rxe3#
- 2.Qxe3#
- 1...Sd4
- 2.Re3#
- 2.Qe3#
- 1...Sh4
- 2.Re3#
- 2.Qe3#
- 1...Sd6
- 2.Re3#
- 2.Qe3#
- 1...Sfe7
- 2.Re3#
- 2.Qe3#
- 1...Sg7
- 2.Re3#
- 2.Qe3#
- 1...Sf6
- 2.Sxf6#
- 1...Sge7
- 2.Sf6#
- 1...Sfxh6!
- 1...Rfxh1
- 1.Re3+?
- 1...Sxe3
- 2.Qxe3#
- 1...Kd4!
- 1...Sxe3
- 1.Rxd7?
- threat
- 2.Qc6#
- 2.Qe6#
- 1...Rxh6
- 2.Sg5#
- 1...Sxg3
- 2.Re3#
- 2.Qe3#
- 1...Sgxh6
- 2.Sf6#
- 1...Rf4
- 2.Qxf4#
- 2.Qe6#
- 1...Sd6
- 2.Qe3#
- 1...Rd1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 2.Qe6#
- 1...Se3
- 2.Rxe3#
- 2.Qxe3#
- 1...Sd4
- 2.Re3#
- 2.Qe3#
- 1...Sh4
- 2.Re3#
- 2.Qe3#
- 1...Sfe7
- 2.Re3#
- 2.Qe3#
- 1...Sg7
- 2.Re3#
- 2.Qe3#
- 1...Sf6
- 2.Sxf6#
- 1...Sge7
- 2.Sf6#
- 2.Qe6#
- 1...Sfxh6!
- threat
- 1.Qd6?
- threat
- 2.Qe5#
- 2.Qd5#
- 1...Sxg3
- 2.Sxg3#
- 2.Re3#
- 1...Rf4
- 2.Qxf4#
- 2.Qd5#
- 1...Bc6
- 2.Qe5#
- 2.Qxc6#
- 2.Qe6#
- 1...Be6
- 2.Qe5#
- 2.Qxe6#
- 1...Se3
- 2.Rxe3#
- 1...Sd4
- 2.Re3#
- 1...Sh4
- 2.Re3#
- 1...Sfh6
- 2.Re3#
- 1...Sfe7
- 2.Re3#
- 1...Sg7
- 2.Re3#
- 1...Sf6
- 2.Sxf6#
- 2.Qe5#
- 1...Sge7
- 2.Sf6#
- 2.Qe5#
- 1...Sxd6!
- threat
- 1.Qf6?
- threat
- 2.Qe5#
- 1...Sxg3
- 2.Sxg3#
- 2.Re3#
- 1...Sxf6
- 2.Sxf6#
- 1...Se3
- 2.Rxe3#
- 1...Sd4
- 2.Re3#
- 1...Sh4
- 2.Re3#
- 1...Sd6
- 2.Re3#
- 1...Sfh6
- 2.Re3#
- 1...Sfe7
- 2.Re3#
- 1...Sg7
- 2.Re3#
- 1...Rf4!
- threat
- 1.Kc7?
- Keys
- 1.Bc7!
- 1...Rfxh1
- 2.Bf3#
- 2.Qf4#
- 1...Rhxh1
- 2.Sg5#
- 1...Rxh6
- 2.Sg5#
- 1...Sfxh6
- 2.Sg3#
- 1...Sgxh6
- 2.Sf6#
- 1...Sd6
- 2.Qe3#
- 1...Ra1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rb1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rc1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rd1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Re1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rg1
- 2.Sf2#
- 2.Bf3#
- 2.Qf4#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Bxf3#
- 1...Rf4
- 2.Qxf4#
- 1...Rh2
- 2.Sg5#
- 1...Rh3
- 2.Sg5#
- 1...Rh4
- 2.Sg5#
- 1...Rg5
- 2.Sxg5#
- 1...Ba4
- 2.Qe6#
- 1...Bb5
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 2.Qe6#
- 1...Be6
- 2.Qxe6#
- 1...Bc8
- 2.Qc6#
- 1...Be8
- 2.Qe6#
- 1...Se3
- 2.Sg3#
- 2.Qxe3#
- 1...Sg3
- 2.Sxg3#
- 2.Qe3#
- 1...Sd4
- 2.Sg3#
- 2.Re3#
- 2.Qe3#
- 1...Sh4
- 2.Sg3#
- 2.Qe3#
- 1...Sfe7
- 2.Sg3#
- 2.Qe3#
- 1...Sg7
- 2.Sg3#
- 2.Qe3#
- 1...Sf6
- 2.Sxf6#
- 1...Sge7
- 2.Sf6#
- 1...Rfxh1
- 1.Bc7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::B(F),XR(a)
- R(a);N_GUARD::QAR1(G),XR(a)
- R(e);N_GUARD,XS(A)::S(H)
- R(e);N_GUARD::S(H)
- R(e);N_GUARD::S(H),XR(e)
- R(e);N_GUARD,XQ(G)::S(H)
- B(f);N_GUARD::QAR2(G)
- B(f);N_GUARD::QAR2(G),XB(f)
- B(f);N_GUARD::QAB(G)
- S(d);N_GUARD::QAR1(G),XS(d)
- S(d);N_GUARD,XB(D)::QAR1(G)
- S(d);N_GUARD::QAR1(G)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD,XQ(G)::S(H)
- S(g);N_GUARD::S(H)
- Tries
- Try
- K(I);S_FLIGHT
- Vars
- R(e);N_GUARD,XS(A)::S(H)
- R(e);N_GUARD,XQ(G)::S(H)
- S(d);N_GUARD,XB(D)::QAR1(G)
- S(g);N_GUARD,XQ(G)::S(H)
- R(a);N_GUARD::QAR1(G),XR(a)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::B(F),XR(a)
- R(e);N_GUARD::S(H)
- R(e);N_GUARD::S(H),XR(e)
- B(f);N_GUARD::QAR2(G)
- B(f);N_GUARD::QAR2(G),XB(f)
- B(f);N_GUARD::QAB(G)
- S(d);N_GUARD::QAR1(G),XS(d)
- S(d);N_GUARD::QAR1(G)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- Refutation
- S(d);XQ(G)
- Try
- B(D);
- Vars
- R(e);N_GUARD,XS(A)::S(H)
- R(e);N_GUARD,XQ(G)::S(H)
- S(d);N_GUARD,XB(D)::QAR1(G)
- S(d);N_GUARD,XQ(G)::S(A)
- S(g);N_GUARD,XQ(G)::S(H)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::B(F),XR(a)
- R(a);N_GUARD::QAR1(G),XR(a)
- R(e);N_GUARD::S(H)
- R(e);N_GUARD::S(H),XR(e)
- B(f);N_GUARD::QAR2(G)
- B(f);N_GUARD::QAR2(G),XB(f)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- Refutation
- B(f);
- Try
- B(F);CHECK,XS(d)
- Vars
- R(a);SBLOCK,XB(F)::QAR1(G)
- R(e);SBLOCK,XB(F)::QAR1(G)
- Refutation
- K(b);S_FLIGHT,XB(F)
- Try
- R(C);
- Vars
- R(a);N_GUARD,XR(C)::QAR1(G)
- R(e);N_GUARD,XS(A)::S(H)
- R(e);N_GUARD,XQ(G)::S(H)
- S(g);N_GUARD,XQ(G)::S(H)
- R(a);N_GUARD::QAR1(G),XR(a)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::B(F),XR(a)
- R(e);N_GUARD::S(H)
- R(e);N_GUARD::S(H),XR(e)
- B(f);N_GUARD::QAR2(G)
- B(f);N_GUARD::QAR2(G),XB(f)
- B(f);N_GUARD::QAB(G)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- Refutation
- S(d);XQ(G)
- Try
- R(C);
- Vars
- R(e);N_GUARD,XS(A)::S(H)
- R(e);N_GUARD,XQ(G)::S(H)
- S(g);N_GUARD,XQ(G)::S(H)
- R(a);N_GUARD::QAR1(G),XR(a)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::B(F),XR(a)
- R(e);N_GUARD::S(H)
- R(e);N_GUARD::S(H),XR(e)
- B(f);N_GUARD::QAR2(G)
- B(f);N_GUARD::QAR2(G),XB(f)
- B(f);N_GUARD::QAB(G)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- Refutation
- S(d);XQ(G)
- Try
- R(C);CHECK
- Vars
- S(d);OGATE,XR(C)::QAR1(G),XS(d)
- Refutation
- K(b);P-FLIGHT
- Try
- R(C);XB(f)
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD,XQ(G)::S(H)
- S(g);N_GUARD,XQ(G)::S(H)
- S(d);N_GUARD::QAR1(G)
- S(g);N_GUARD::S(H),XS(g)
- Refutation
- S(d);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD::R1(C),XS(d)
- S(d);N_GUARD::R1(C)
- Refutation
- S(d);XQ(G)
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- S(g);XQ(G)::S(H),XS(g)
- S(d);N_GUARD::R1(C),XS(d)
- S(d);N_GUARD::R1(C)
- Refutation
- R(a);
- Try
- Actual
- B(D);
- Vars
- R(e);N_GUARD,XS(A)::S(H)
- R(e);N_GUARD,XQ(G)::S(H)
- S(d);N_GUARD,XQ(G)::S(A)
- S(g);N_GUARD,XQ(G)::S(H)
- S(d);N_GUARD::QAR1(G)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::B(F),XR(a)
- R(a);N_GUARD::QAR1(G),XR(a)
- R(e);N_GUARD::S(H)
- R(e);N_GUARD::S(H),XR(e)
- B(f);N_GUARD::QAR2(G)
- B(f);N_GUARD::QAR2(G),XB(f)
- B(f);N_GUARD::QAB(G)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
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).