MESON Chess Problem Database
Problem Display
PID: 5036 (3R3B/Q7/5nK1/3n4/3NkNR1/2p2p2/2P2P2/8 w - - 0 1)
Loyd, Sam
New York Commercial Advertiser, 1897
#2
9 + 5
| 5206 | Sam Loyd and His Chess Problems | 1913 |
| 1842 | The White King | 1914 |
| 3360 | Simple Two-move Themes | 1924 |
| 5064 | 100 Years of the American Two-move Chess Problem | 1962 |
| 5063 | Spectacular Chess Problems | 1965 |
| 5065 | Chess Problem Gems by Eight Eminent American Composers | 1972 |
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Sd3#
- 1...Se3
- 2.Qe7#
- 1...Sb4
- 2.Qe7#
- 1...Sb6
- 2.Qe7#
- 1...Se7+
- 2.Qxe7#
- 1...Sh7
- 2.Sxd5#
- 1...Se8
- 2.Sxd5#
- 1...Sg8
- 2.Sxd5#
- 1...Ke5
- Tries
- 1.Sb3?
- threat
- 2.Qd4#
- 1...Se7+
- 2.Qxe7#
- 1...Ke5
- 2.Qd4#
- 1...Sb6
- 2.Qe7#
- 1...Sxf4+!
- threat
- 1.Sb5?
- threat
- 2.Qd4#
- 1...Se7+
- 2.Qxe7#
- 1...Ke5
- 2.Qd4#
- 1...Sb6
- 2.Qe7#
- 1...Sxf4+!
- threat
- 1.Sf5?
- threat
- 2.Qd4#
- 1...Se7+
- 2.Qxe7#
- 1...Ke5
- 2.Qd4#
- 1...Sb6
- 2.Qe7#
- 1...Sxf4+!
- threat
- 1.Sc6?
- threat
- 2.Qd4#
- 1...Se7+
- 2.Qxe7#
- 1...Sb6
- 2.Rd4#
- 2.Qe7#
- 1...Sxf4+!
- threat
- 1.Sd3+?
- 1...Sf4+
- 2.Rxf4#
- 1...Sxg4!
- 1...Sf4+
- 1.Sxd5+?
- 1...Ke5
- 2.Bxf6#
- 2.Qb8#
- 2.Qc7#
- 2.Qe7#
- 1...Sxg4!
- 1...Ke5
- 1.Bxf6?
- threat
- 2.Sxd5#
- 1...Se7+
- 2.Qxe7#
- 1...Sxf6
- 2.Qe7#
- 1...Sc7
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Sfe6#
- 1...Se3
- 2.Re8#
- 2.Qe7#
- 1...Sb4
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Re8#
- 2.Qe7#
- 1...Sb6
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Re8#
- 2.Qe7#
- 1...Sxf4+!
- threat
- 1.Re8+?
- 1...Se7+
- 2.Rxe7#
- 1...Sxe8!
- 1...Se7+
- 1.Qb7?
- 1...Kxd4
- 2.Sd3#
- 2.Qxd5#
- 1...Ke5
- 2.Sd3#
- 2.Qxd5#
- 1...Sh5
- 2.Sxh5#
- 2.Re8#
- 2.Qxd5#
- 1...Sd7
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sxd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Qxd5#
- 1...Sh7
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sxd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Re8#
- 2.Qxd5#
- 1...Se8
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sxd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Rxe8#
- 2.Qxd5#
- 1...Sg8
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sxd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Qxd5#
- 1...Sxg4!
- 1...Kxd4
- 1.Qe7+?
- 1...Kxd4
- 2.Se2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sxd5#
- 2.Sh5#
- 1...Sxe7+!
- 1...Kxd4
- 1.Qa8?
- 1...Kxd4
- 2.Sd3#
- 2.Qxd5#
- 1...Ke5
- 2.Sd3#
- 2.Qxd5#
- 1...Sh5
- 2.Sxh5#
- 2.Re8#
- 2.Qxd5#
- 1...Sd7
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sxd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Qxd5#
- 1...Sh7
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sxd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Re8#
- 2.Qxd5#
- 1...Se8
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sxd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Rxe8#
- 2.Qxd5#
- 1...Sg8
- 2.Sfe2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sxd5#
- 2.Sh5#
- 2.Sfe6#
- 2.Qxd5#
- 1...Sxg4!
- 1...Kxd4
- 1.Sb3?
- Keys
- 1.Qh7!
- 1...Sxf4+
- 2.Kxf6#
- 1...Se7+
- 2.Qxe7#
- 1...Kxd4
- 2.Sd3#
- 1...Ke5
- 2.Sd3#
- 1...Sxg4
- 2.Kg5#
- 1...Sxh7
- 2.Sxd5#
- 1...Sc7
- 2.Kxf6#
- 1...Se3
- 2.Qe7#
- 1...Sb4
- 2.Kxf6#
- 2.Qe7#
- 1...Sb6
- 2.Kxf6#
- 2.Qe7#
- 1...Sh5
- 2.Kg5#
- 2.Kxh5#
- 2.Kh6#
- 2.Kf7#
- 1...Sd7
- 2.Kg5#
- 2.Kh5#
- 2.Kh6#
- 2.Kf7#
- 1...Se8
- 2.Kg5#
- 2.Kh5#
- 2.Kh6#
- 2.Kf7#
- 2.Sxd5#
- 1...Sg8
- 2.Kg5#
- 2.Kh5#
- 2.Kf7#
- 2.Sxd5#
- 1...Sxf4+
- 1.Qh7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- K(c);P-FLIGHT,P_SPINS(e)::S(D)
- S(d);N_GUARD::QAR(G)
- S(d);CHECK,N_GUARD::QAR(G),XS(d)
- S(e);N_GUARD::R(E)+S(D),XS(d)
- Tries
- Try
- S(C);
- Threat
- QAR1(G)
- Vars
- S(d);CHECK,N_GUARD::QAR(G),XS(d)
- K(c);P-FLIGHT,P_SPINS(e)::QAB1(G)
- S(d);N_GUARD::QAR(G)
- Refutation
- S(d);CHECK,P_SPINS(d),XS(D)
- Try
- S(C);
- Threat
- QAR1(G)
- Vars
- S(d);CHECK,N_GUARD::QAR(G),XS(d)
- K(c);P-FLIGHT,P_SPINS(e)::QAB1(G)
- S(d);N_GUARD::QAR(G)
- Refutation
- S(d);CHECK,P_SPINS(d),XS(D)
- Try
- S(C);
- Threat
- QAR1(G)
- Vars
- S(d);CHECK,N_GUARD::QAR(G),XS(d)
- K(c);P-FLIGHT,P_SPINS(e)::QAB1(G)
- S(d);N_GUARD::QAR(G)
- Refutation
- S(d);CHECK,P_SPINS(d),XS(D)
- Try
- S(C);
- Threat
- QAR1(G)
- Vars
- S(d);CHECK,N_GUARD::QAR(G),XS(d)
- Refutation
- S(d);CHECK,P_SPINS(d),XS(D)
- Try
- S(D);CHECK
- Vars
- S(d);CHECK,N_GUARD,P_SPINS(d)::R1(E),XS(d)
- Refutation
- S(e);XR(E)
- Try
- S(D);CHECK,XS(d)
- Refutation
- S(e);XR(E)
- Try
- B(I);XS(e)
- Threat
- R(E)+S(D),XS(d)
- Vars
- S(d);CHECK,N_GUARD::QAR(G),XS(d)
- S(d);N_GUARD,XB(I)::QAR(G)
- Refutation
- S(d);CHECK,P_SPINS(d),XS(D)
- Try
- R(H);CHECK
- Vars
- S(d);CHECK,N_GUARD,P_SPINS(d)::R(H),XS(d)
- Refutation
- S(e);XR(H)
- Try
- Q(G);P_PINS(d)
- Refutation
- S(e);XR(E)
- Try
- Q(G);CHECK
- Refutation
- S(d);CHECK,XQ(G)
- Try
- Q(G);P_PINS(d)
- Refutation
- S(e);XR(E)
- Try
- Actual
- Q(G);
- Vars
- S(d);CHECK,P_SPINS(d),XS(D)::QAB(G)+K(F),XS(e)
- S(d);CHECK,N_GUARD::QAR(G),XS(d)
- K(c);P-FLIGHT,P_SPINS(d),XS(C)::R(E)+S(D)
- K(c);P-FLIGHT,P_SPINS(e)::S(D)
- S(e);N_GUARD,XR(E)::QAB(G)+K(F)
- S(e);N_GUARD,XQ(G)::R(E)+S(D),XS(d)
- S(d);::QAB(G)+K(F),XS(e)
- S(d);N_GUARD::QAR(G)
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).