MESON Chess Problem Database
Problem Display
PID: 223450 (5Q2/3p1n2/1N1r1p2/K1R2B2/1P1k2P1/4q1R1/5B2/3br1N1 w - - 0 1)
Joseph, Samuel M
2nd Prize, Baltimore Sunday News, 1886
#2
10 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Rd3#
- 1...Rf1
- 2.Bxe3#
- 1...Rxg1
- 2.Bxe3#
- 1...Re2
- 2.Sf3#
- 1...Bc2
- 2.Sf3#
- 1...Be2
- 2.Bxe3#
- 1...Bb3
- 2.Sf3#
- 1...Bf3
- 2.Sxf3#
- 1...Ba4
- 2.Sf3#
- 1...Bxg4
- 2.Rxg4#
- 1...Se5
- 2.Qxd6#
- 1...Sg5
- 2.Qxd6#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...Qxf2
- Tries
- 1.Se2+?
- 1...Bxe2
- 2.Bxe3#
- 1...Rxe2!
- 1...Bxe2
- 1.Rxe3?
- threat
- 2.Rxe1#
- 2.Re2#
- 2.Rd3#
- 2.Rc4#
- 1...Rxg1
- 2.Re1#
- 2.Re2#
- 2.Ra3#
- 2.Rb3#
- 2.Rec3#
- 2.Rd3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Ree5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 2.Rc4#
- 1...Rxb6
- 2.Rxe1#
- 2.Re2#
- 2.Rd3#
- 1...Rf1
- 2.Rd3#
- 2.Rc4#
- 1...Re2
- 2.Sf3#
- 2.Rxe2#
- 2.Rd3#
- 2.Rc4#
- 1...Rd5
- 2.Rxe1#
- 2.Re2#
- 2.Rxd5#
- 1...Rc6
- 2.Rxe1#
- 2.Re2#
- 2.Rd3#
- 2.Rd5#
- 1...Re6
- 2.Rd3#
- 2.Rc4#
- 2.Rd5#
- 1...Be2
- 2.Rxe2#
- 2.Ra3#
- 2.Rb3#
- 2.Rec3#
- 2.Rd3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Ree5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Bb3
- 2.Sf3#
- 2.Rxe1#
- 2.Re2#
- 2.Rd3#
- 1...Se5
- 2.Rxe1#
- 2.Re2#
- 2.Rd3#
- 2.Qxd6#
- 1...Rxe3!
- threat
- 1.Qe7?
- threat
- 2.Rc4#
- 2.Qe4#
- 1...Qxf2
- 2.Rd3#
- 2.Rc4#
- 1...Rxb6
- 2.Qe4#
- 1...Rd5
- 2.Qe4#
- 1...Rc6
- 2.Qe4#
- 1...Bc2
- 2.Sf3#
- 2.Rc4#
- 1...Be2
- 2.Bxe3#
- 2.Qxe3#
- 2.Qe4#
- 1...Bb3
- 2.Sf3#
- 2.Qe4#
- 1...Bf3
- 2.Sxf3#
- 2.Rc4#
- 1...Se5
- 2.Qxd6#
- 1...Sg5
- 2.Rc4#
- 2.Qxd6#
- 1...Re6!
- threat
- 1.Qxf7?
- threat
- 2.Qc4#
- 1...Rd5
- 2.Qxd5#
- 1...Be2
- 2.Bxe3#
- 1...Bb3
- 2.Sf3#
- 1...Re6!
- threat
- 1.Se2+?
- Keys
- 1.Qb8!
- 1...Qxf2
- 2.Rd3#
- 1...Rxg1
- 2.Bxe3#
- 1...Rxb6
- 2.Qf4#
- 1...Bxg4
- 2.Rxg4#
- 1...Re6
- 2.Rc4#
- 1...Rf1
- 2.Bxe3#
- 1...Re2
- 2.Sf3#
- 1...Rd5
- 2.Qf4#
- 1...Rc6
- 2.Qf4#
- 1...Bc2
- 2.Sf3#
- 1...Be2
- 2.Bxe3#
- 1...Bb3
- 2.Sf3#
- 1...Bf3
- 2.Sxf3#
- 1...Ba4
- 2.Sf3#
- 1...Se5
- 2.Qxd6#
- 1...Sg5
- 2.Qxd6#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...Qxf2
- 1.Qb8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(c);N_SPINQ(c),OGATE,XB(B)::R1(C)
- R(b);N_GUARD::B(B),XQ(c)
- R(b);N_GUARD,XS(A)::B(B),XQ(c)
- R(b);S_CUTB(a)::S(A)
- B(a);N_GUARD::S(A)
- B(a);S_CUTR(b)::B(B),XQ(c)
- B(a);N_GUARD::S(A),XB(a)
- B(a);OGATE,XP(E)::R(C),XB(a)
- S(h);N_GUARD::QAR2(J),XR(e)
- Tries
- Try
- S(A);CHECK
- Vars
- B(a);XS(A)::B(B),XQ(c)
- Refutation
- R(b);XS(A)
- Try
- R(C);XQ(c)
- Threat
- DUALS(4)
- Refutation
- R(b);P_SPINR(b),XR(C)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- R(e);XS(I)::QAR1(J)
- R(e);P_PINR(G)::QAR1(J)
- R(e);::QAR1(J)
- S(h);N_GUARD::QAR2(J),XR(e)
- Refutation
- R(e);
- Try
- Q(J);XS(h)
- Threat
- QAR1(J)
- Vars
- R(e);N_GUARD,P_PINR(G)::QAR1(J),XR(e)
- B(a);S_CUTR(b)::B(B),XQ(c)
- B(a);N_GUARD::S(A)
- Refutation
- R(e);
- Try
- Actual
- Q(J);
- Vars
- Q(c);N_SPINQ(c),OGATE,XB(B)::R1(C)
- R(b);N_GUARD,XS(A)::B(B),XQ(c)
- R(e);OGATE,XS(I)::QAR2(J)
- B(a);OGATE,XP(E)::R(C),XB(a)
- R(e);::R1(G)
- R(b);N_GUARD::B(B),XQ(c)
- R(b);S_CUTB(a)::S(A)
- R(e);OGATE,P_PINR(G)::QAR2(J)
- R(e);OGATE::QAR2(J)
- B(a);N_GUARD::S(A)
- B(a);S_CUTR(b)::B(B),XQ(c)
- B(a);N_GUARD::S(A),XB(a)
- S(h);N_GUARD::QAR2(J),XR(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).