MESON Chess Problem Database
Problem Display
PID: 216268 (2R5/1r3NQ1/3p4/1ppk1K2/1PNb4/3r1p2/PB3p2/3R1B2 w - - 0 1)
Clarke, Thomas Denton
Philadelphia Times, 1881
#2
10 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kxc4
- 2.Qxd4#
- 1...Re3
- 2.Sxe3#
- 1...Rb6
- 2.Sxb6#
- 1...Ra7
- 2.Sb6#
- 1...Rd7
- 2.Sb6#
- 1...Re7
- 2.Sb6#
- 1...Rxf7+
- 2.Qxf7#
- 1...Bxb2
- 2.Se3#
- 1...Bc3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Be5
- 2.Se3#
- 1...Bf6
- 2.Se3#
- 1...Bxg7
- 2.Se3#
- 1...Kxc4
- Tries
- 1.Sg5?
- 1...Rf7+
- 2.Qxf7#
- 1...Kxc4
- 2.Qxd4#
- 1...Rxd1
- 2.Qxb7#
- 1...Rxg7
- 2.Sb6#
- 1...Bxb2
- 2.Se3#
- 1...Bxg7
- 2.Se3#
- 1...bxc4
- 2.Qxb7#
- 1...cxb4
- 2.Qxb7#
- 1...Rd2
- 2.Qxb7#
- 1...Ra3
- 2.Qxb7#
- 1...Rb3
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Re3
- 2.Sxe3#
- 2.Qxb7#
- 1...Rb6
- 2.Sxb6#
- 2.Qf7#
- 2.Qg8#
- 1...Ra7
- 2.Sb6#
- 1...Rd7
- 2.Sb6#
- 1...Re7
- 2.Sb6#
- 1...Rb8
- 2.Qf7#
- 2.Qg8#
- 1...Bc3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Be5
- 2.Se3#
- 1...Bf6
- 2.Se3#
- 1...Rc7!
- 1...Rf7+
- 1.Sh6?
- 1...Rf7+
- 2.Qxf7#
- 1...Kxc4
- 2.Qxd4#
- 1...Rxd1
- 2.Qxb7#
- 1...Rxg7
- 2.Sb6#
- 1...Bxb2
- 2.Se3#
- 1...Bxg7
- 2.Se3#
- 1...bxc4
- 2.Qxb7#
- 1...cxb4
- 2.Qxb7#
- 1...Rd2
- 2.Qxb7#
- 1...Ra3
- 2.Qxb7#
- 1...Rb3
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Re3
- 2.Sxe3#
- 2.Qxb7#
- 1...Rb6
- 2.Sxb6#
- 2.Qf7#
- 2.Qg8#
- 1...Ra7
- 2.Sb6#
- 1...Rd7
- 2.Sb6#
- 1...Re7
- 2.Sb6#
- 1...Rb8
- 2.Qf7#
- 2.Qg8#
- 1...Bc3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Be5
- 2.Se3#
- 1...Bf6
- 2.Se3#
- 1...Rc7!
- 1...Rf7+
- 1.Sh8?
- 1...Rf7+
- 2.Qxf7#
- 1...Kxc4
- 2.Qxd4#
- 1...Rxd1
- 2.Qxb7#
- 1...Rxg7
- 2.Sb6#
- 1...Bxb2
- 2.Se3#
- 1...Bxg7
- 2.Se3#
- 1...bxc4
- 2.Qxb7#
- 1...cxb4
- 2.Qxb7#
- 1...Rd2
- 2.Qxb7#
- 1...Ra3
- 2.Qxb7#
- 1...Rb3
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Re3
- 2.Sxe3#
- 2.Qxb7#
- 1...Rb6
- 2.Sxb6#
- 2.Qf7#
- 2.Qg8#
- 1...Ra7
- 2.Sb6#
- 1...Rd7
- 2.Sb6#
- 1...Re7
- 2.Sb6#
- 1...Rb8
- 2.Qf7#
- 2.Qg8#
- 1...Bc3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Be5
- 2.Se3#
- 1...Bf6
- 2.Se3#
- 1...Rc7!
- 1...Rf7+
- 1.Qxd4+?
- 1...Rxd4
- 2.Se3#
- 1...cxd4!
- 1...Rxd4
- 1.Qe5+?
- 1...Kxc4
- 2.Qxd4#
- 1...Bxe5
- 2.Se3#
- 1...dxe5!
- 1...Kxc4
- 1.Qf6?
- threat
- 2.Qe6#
- 1...Kxc4
- 2.Qxd4#
- 1...Rxf7
- 2.Sb6#
- 2.Qxf7#
- 1...Bxb2
- 2.Se3#
- 1...Bxf6
- 2.Se3#
- 1...Re3
- 2.Sxe3#
- 2.Qxd6#
- 1...Re7
- 2.Sb6#
- 1...Bc3
- 2.Se3#
- 1...Rc7!
- threat
- 1.Sg5?
- Keys
- 1.Sd8!
- 1...Rf7+
- 2.Qxf7#
- 1...Kxc4
- 2.Qxd4#
- 1...Rxd1
- 2.Qxb7#
- 1...Rxg7
- 2.Sb6#
- 1...Bxb2
- 2.Se3#
- 1...Bxg7
- 2.Se3#
- 1...bxc4
- 2.Qxb7#
- 1...cxb4
- 2.Qxb7#
- 1...Rd2
- 2.Qxb7#
- 1...Ra3
- 2.Qxb7#
- 1...Rb3
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Re3
- 2.Sxe3#
- 2.Qxb7#
- 1...Rb6
- 2.Sxb6#
- 2.Qf7#
- 2.Qg8#
- 1...Ra7
- 2.Sb6#
- 1...Rc7
- 2.Sb6#
- 1...Rd7
- 2.Sb6#
- 1...Re7
- 2.Sb6#
- 1...Rb8
- 2.Qf7#
- 2.Qg8#
- 1...Bc3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Be5
- 2.Se3#
- 1...Bf6
- 2.Se3#
- 1...Rf7+
- 1.Sd8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 2
- Sets
- K(g);P_SPINP(f),P_SPINR(b),S_FLIGHT,XS(F)::QAR1(I),XB(d)
- R(b);N_GUARD,P_SPINB(d)::S(F),XR(b)
- R(i);N_GUARD::S(F),XR(i)
- R(i);N_GUARD::S(F)
- R(i);CHECK,OGATE,XS(H)::QAB(I),XR(i)
- B(d);N_GUARD,P_SPINR(b),XB(D)::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F),XB(d)
- B(d);N_GUARD,P_SPINR(b),XQ(I)::S(F)
- Tries
- Try
- S(H);
- Vars
- R(i);CHECK,N_GUARD::QAB(I),XR(i)
- K(g);P_SPINP(f),P_SPINR(b),S_FLIGHT,XS(F)::QAR1(I),XB(d)
- R(b);XR(A)::QAB(I),XR(i)
- R(i);N_GUARD,XQ(I)::S(F)
- B(d);N_GUARD,P_SPINR(b),XB(D)::S(F)
- B(d);N_GUARD,P_SPINR(b),XQ(I)::S(F)
- P(e);SBLOCK,XS(F)::QAB(I),XR(i)
- P(f);XP(E)::QAB(I),XR(i)
- R(b);::QAB(I),XR(i)
- R(b);P_SPINB(d)::QAB(I),XR(i)
- R(i);N_GUARD::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F),XB(d)
- Refutation
- R(i);
- Try
- S(H);
- Vars
- R(i);CHECK,N_GUARD::QAB(I),XR(i)
- K(g);P_SPINP(f),P_SPINR(b),S_FLIGHT,XS(F)::QAR1(I),XB(d)
- R(b);XR(A)::QAB(I),XR(i)
- R(i);N_GUARD,XQ(I)::S(F)
- B(d);N_GUARD,P_SPINR(b),XB(D)::S(F)
- B(d);N_GUARD,P_SPINR(b),XQ(I)::S(F)
- P(e);SBLOCK,XS(F)::QAB(I),XR(i)
- P(f);XP(E)::QAB(I),XR(i)
- R(b);::QAB(I),XR(i)
- R(b);P_SPINB(d)::QAB(I),XR(i)
- R(i);N_GUARD::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F),XB(d)
- Refutation
- R(i);
- Try
- S(H);
- Vars
- R(i);CHECK,N_GUARD::QAB(I),XR(i)
- K(g);P_SPINP(f),P_SPINR(b),S_FLIGHT,XS(F)::QAR1(I),XB(d)
- R(b);XR(A)::QAB(I),XR(i)
- R(i);N_GUARD,XQ(I)::S(F)
- B(d);N_GUARD,P_SPINR(b),XB(D)::S(F)
- B(d);N_GUARD,P_SPINR(b),XQ(I)::S(F)
- P(e);SBLOCK,XS(F)::QAB(I),XR(i)
- P(f);XP(E)::QAB(I),XR(i)
- R(b);::QAB(I),XR(i)
- R(b);P_SPINB(d)::QAB(I),XR(i)
- R(i);N_GUARD::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F),XB(d)
- Refutation
- R(i);
- Try
- Q(I);CHECK,XB(d)
- Vars
- R(b);P_SPINR(b),XQ(I)::S(F)
- Refutation
- P(f);XQ(I)
- Try
- Q(I);CHECK
- Vars
- K(g);P_SPINP(f),P_SPINR(b),S_FLIGHT,XS(F)::QAR1(I),XB(d)
- B(d);P_SPINR(b),XQ(I)::S(F)
- Refutation
- P(h);XQ(I)
- Try
- Q(I);
- Threat
- QAB1(I)
- Vars
- K(g);P_SPINP(f),P_SPINR(b),S_FLIGHT,XS(F)::QAR1(I),XB(d)
- B(d);N_GUARD,P_SPINR(b),XB(D)::S(F)
- B(d);N_GUARD,P_SPINR(b),XQ(I)::S(F)
- R(i);N_GUARD::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F)
- Refutation
- R(i);
- Try
- Actual
- S(H);
- Vars
- R(i);CHECK,N_GUARD::QAB(I),XR(i)
- K(g);P_SPINP(f),P_SPINR(b),S_FLIGHT,XS(F)::QAR1(I),XB(d)
- R(b);XR(A)::QAB(I),XR(i)
- R(i);N_GUARD,XQ(I)::S(F)
- B(d);N_GUARD,P_SPINR(b),XB(D)::S(F)
- B(d);N_GUARD,P_SPINR(b),XQ(I)::S(F)
- P(e);SBLOCK,XS(F)::QAB(I),XR(i)
- P(f);XP(E)::QAB(I),XR(i)
- R(b);::QAB(I),XR(i)
- R(b);P_SPINB(d)::QAB(I),XR(i)
- R(i);N_GUARD::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F)
- B(d);N_GUARD,P_SPINR(b)::S(F),XB(d)
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).