MESON Chess Problem Database
Problem Display
PID: 48282 (n4b2/1Q3p2/2K2P2/P1P2R2/r3k1P1/2Bqp2r/4N1n1/1B6 w - - 0 1)
Joseph, Samuel M
1st Prize, Brighton Society, 1895
#2
10 + 9
| 1842 | The White King | 1914 |
| 5064 | 100 Years of the American Two-move Chess Problem | 1962 |
SOLUTION
- SOUND
- Sets
- 1...Qxb1
- 2.Qxb1#
- 1...Qc2
- 2.Bxc2#
- 1...Rh1
- 2.Sg3#
- 1...Rh2
- 2.Sg3#
- 1...Rf3
- 2.Re5#
- 1...Rg3
- 2.Sxg3#
- 1...Rh4
- 2.Sg3#
- 1...Rh5
- 2.Sg3#
- 1...Rh6
- 2.Sg3#
- 1...Rh7
- 2.Sg3#
- 1...Rh8
- 2.Sg3#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Rc4
- 2.Kb5#
- 1...Rxa5
- 2.Qb4#
- 1...Bxc5
- 2.Kxc5#
- 1...Bd6
- 2.Kd7#
- 1...Bh6
- 2.Qe7#
- 1...Be7
- 2.Qxe7#
- 1...Bg7
- 2.Qe7#
- 1...Se1
- 2.Rf4#
- 1...Sf4
- 2.Rxf4#
- 1...Sh4
- 2.Rf4#
- 1...Sb6
- 2.Kxb6#
- 1...Sc7
- 2.Kxc7#
- 1...Qxb1
- Tries
- 1.Bb2?
- 1...Rxa5
- 2.Qb4#
- 1...Bxc5
- 2.Kxc5#
- 1...Qc2
- 2.Bxc2#
- 1...Sf4
- 2.Rxf4#
- 1...Rh1
- 2.Sg3#
- 1...Rh2
- 2.Sg3#
- 1...Rf3
- 2.Re5#
- 1...Rg3
- 2.Sxg3#
- 1...Rh4
- 2.Sg3#
- 1...Rh5
- 2.Sg3#
- 1...Rh6
- 2.Sg3#
- 1...Rh7
- 2.Sg3#
- 1...Rh8
- 2.Sg3#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Rc4
- 2.Kb5#
- 1...Rd4
- 2.Sc3#
- 1...Bd6
- 2.Kd7#
- 1...Bh6
- 2.Qe7#
- 1...Be7
- 2.Qxe7#
- 1...Bg7
- 2.Qe7#
- 1...Se1
- 2.Rf4#
- 1...Sh4
- 2.Rf4#
- 1...Sb6
- 2.Kxb6#
- 1...Sc7
- 2.Kxc7#
- 1...Qxb1!
- 1...Rxa5
- 1.Bd4?
- threat
- 2.Kd7#
- 1...Qxb1
- 2.Qxb1#
- 1...Rxd4
- 2.Sc3#
- 1...Qc2
- 2.Bxc2#
- 1...Sf4
- 2.Rxf4#
- 1...Sb6
- 2.Kxb6#
- 1...Sc7
- 2.Kxc7#
- 1...Rb4!
- threat
- 1.Be5?
- threat
- 2.Sc3#
- 1...Qxb1
- 2.Qxb1#
- 1...Qc2
- 2.Bxc2#
- 1...Ra3
- 2.Qb4#
- 1...Rc4
- 2.Kb5#
- 1...Sf4!
- threat
- 1.Qb5?
- threat
- 2.Bxd3#
- 2.Qxd3#
- 2.Qxa4#
- 1...Qxb1
- 2.Qxb1#
- 1...Rxa5
- 2.Bxd3#
- 2.Qxd3#
- 2.Qc4#
- 2.Qb4#
- 1...Bxc5
- 2.Bxd3#
- 2.Qxd3#
- 1...Sf4
- 2.Rxf4#
- 1...Qc2
- 2.Bxc2#
- 1...Ra1
- 2.Bxd3#
- 2.Qxd3#
- 2.Qc4#
- 2.Qb4#
- 1...Ra2
- 2.Bxd3#
- 2.Qxd3#
- 2.Qc4#
- 2.Qb4#
- 1...Ra3
- 2.Bxd3#
- 2.Qxd3#
- 2.Qc4#
- 2.Qb4#
- 1...Rb4
- 2.Bxd3#
- 2.Qxd3#
- 2.Qxb4#
- 1...Rc4
- 2.Qxc4#
- 1...Se1
- 2.Rf4#
- 2.Qxa4#
- 1...Sb6
- 2.Bxd3#
- 2.Qxd3#
- 1...Rd4!
- threat
- 1.Qd7?
- threat
- 2.Bxd3#
- 2.Qxd3#
- 2.Qd5#
- 1...Qxb1
- 2.Qd5#
- 1...Sf4
- 2.Rxf4#
- 1...Rd4
- 2.Qxd4#
- 1...Qc2
- 2.Bxc2#
- 2.Qd5#
- 1...Se1
- 2.Rf4#
- 2.Qd5#
- 1...Sb6
- 2.Bxd3#
- 2.Qxd3#
- 1...Sc7
- 2.Bxd3#
- 2.Qxd3#
- 1...Bd6!
- threat
- 1.Qxf7?
- threat
- 2.Qd5#
- 2.Qe6#
- 1...Qxb1
- 2.Qd5#
- 1...Qc2
- 2.Bxc2#
- 2.Qd5#
- 1...Sf4
- 2.Rxf4#
- 1...Rd4
- 2.Qe6#
- 1...Bd6
- 2.Qd5#
- 1...Sb6
- 2.Qe6#
- 1...Sc7!
- threat
- 1.Bb2?
- Keys
- 1.Ba1!
- 1...Qxb1
- 2.Qxb1#
- 1...Rxa1
- 2.Qb4#
- 1...Rxa5
- 2.Qb4#
- 1...Bxc5
- 2.Kxc5#
- 1...Qc2
- 2.Bxc2#
- 1...Sf4
- 2.Rxf4#
- 1...Rh1
- 2.Sg3#
- 1...Rh2
- 2.Sg3#
- 1...Rf3
- 2.Re5#
- 1...Rg3
- 2.Sxg3#
- 1...Rh4
- 2.Sg3#
- 1...Rh5
- 2.Sg3#
- 1...Rh6
- 2.Sg3#
- 1...Rh7
- 2.Sg3#
- 1...Rh8
- 2.Sg3#
- 1...Ra2
- 2.Qb4#
- 1...Ra3
- 2.Qb4#
- 1...Rb4
- 2.Qxb4#
- 1...Rc4
- 2.Kb5#
- 1...Rd4
- 2.Sc3#
- 1...Bd6
- 2.Kd7#
- 1...Bh6
- 2.Qe7#
- 1...Be7
- 2.Qxe7#
- 1...Bg7
- 2.Qe7#
- 1...Se1
- 2.Rf4#
- 1...Sh4
- 2.Rf4#
- 1...Sb6
- 2.Kxb6#
- 1...Sc7
- 2.Kxc7#
- 1...Qxb1
- 1.Ba1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(b);N_SPINQ(b),OGATE,XB(A)::QAB(J),XQ(b)
- Q(b);OGATEB::B(A),XQ(b)
- R(d);N_GUARD::S(B)
- R(d);SBLOCK::R1(G)
- R(d);N_GUARD::S(B),XR(d)
- R(d);N_GUARD,P_PINP(I)::S(B)
- R(e);N_GUARD::QAR(J)
- R(e);N_GUARD::QAR(J),XR(e)
- R(e);P_PINP(F)::QAB(J)+K(H)
- R(e);N_GUARD,XP(E)::QAR(J)
- B(i);XP(F)::QAB(J)+K(H),XB(i)
- B(i);::QAB(J)+K(H)
- B(i);N_GUARD::QAR(J)
- B(i);N_GUARD::QAR(J),XB(i)
- S(a);N_GUARD::R1(G)
- S(a);N_GUARD::R1(G),XS(a)
- S(h);::QAB(J)+K(H),XS(h)
- Tries
- Try
- B(C);
- Vars
- R(e);N_GUARD,XP(E)::QAR(J)
- B(i);XP(F)::QAB(J)+K(H),XB(i)
- Q(b);OGATEB,P_PINP(F)::B(A),XQ(b)
- S(a);N_GUARD::R1(G),XS(a)
- R(d);N_GUARD::S(B)
- R(d);SBLOCK::R1(G)
- R(d);N_GUARD::S(B),XR(d)
- R(d);N_GUARD,P_PINP(I)::S(B)
- R(e);N_GUARD::QAR(J)
- R(e);N_GUARD::QAR(J),XR(e)
- R(e);P_PINP(F)::QAB(J)+K(H)
- R(e);SBLOCK::S(B)
- B(i);::QAB(J)+K(H)
- B(i);N_GUARD::QAR(J)
- B(i);N_GUARD::QAR(J),XB(i)
- S(a);N_GUARD::R1(G)
- S(h);::QAB(J)+K(H),XS(h)
- Refutation
- Q(b);N_SPINQ(b),XB(A)
- Try
- B(C);
- Threat
- QAB(J)+K(H)
- Vars
- Q(b);N_SPINQ(b),OGATE,XB(A)::QAB(J),XQ(b)
- R(e);SBLOCK,XB(C)::S(B)
- Q(b);OGATEB,P_PINP(F)::B(A),XQ(b)
- S(a);N_GUARD::R1(G),XS(a)
- S(h);::QAB(J)+K(H),XS(h)
- Refutation
- R(e);
- Try
- B(C);
- Threat
- S(B)
- Vars
- Q(b);N_SPINQ(b),OGATE,XB(A)::QAB(J),XQ(b)
- Q(b);OGATEB,P_PINP(F)::B(A),XQ(b)
- R(e);N_GUARD::QAR(J)
- R(e);P_PINP(F)::QAB(J)+K(H)
- Refutation
- S(a);
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- Q(b);N_SPINQ(b),OGATE,XB(A)::QAB(J),XQ(b)
- S(a);N_GUARD::R1(G),XS(a)
- Q(b);OGATEB::B(A),XQ(b)
- R(e);N_GUARD,P_PINP(F)::QAR2(J),XR(e)
- Refutation
- R(e);
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- Q(b);N_SPINQ(b),XB(A)::QAB1(J)
- S(a);N_GUARD::R1(G),XS(a)
- R(e);N_GUARD::QAR1(J),XR(e)
- Refutation
- B(i);
- Try
- Q(J);XP(g)
- Threat
- DUALS(2)
- Vars
- Q(b);N_SPINQ(b),XB(A)::QAB1(J)
- S(a);N_GUARD::R1(G),XS(a)
- R(e);::QAR2(J)
- B(i);::QAB1(J)
- S(h);::QAR2(J)
- Refutation
- S(h);
- Try
- Actual
- B(C);
- Vars
- Q(b);N_SPINQ(b),OGATE,XB(A)::QAB(J),XQ(b)
- R(e);N_GUARD,XB(C)::QAR(J)
- R(e);N_GUARD,XP(E)::QAR(J)
- B(i);XP(F)::QAB(J)+K(H),XB(i)
- Q(b);OGATEB,P_PINP(F)::B(A),XQ(b)
- S(a);N_GUARD::R1(G),XS(a)
- R(d);N_GUARD::S(B)
- R(d);SBLOCK::R1(G)
- R(d);N_GUARD::S(B),XR(d)
- R(d);N_GUARD,P_PINP(I)::S(B)
- R(e);N_GUARD::QAR(J)
- R(e);N_GUARD::QAR(J),XR(e)
- R(e);P_PINP(F)::QAB(J)+K(H)
- R(e);SBLOCK::S(B)
- B(i);::QAB(J)+K(H)
- B(i);N_GUARD::QAR(J)
- B(i);N_GUARD::QAR(J),XB(i)
- S(a);N_GUARD::R1(G)
- S(h);::QAB(J)+K(H),XS(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).