MESON Chess Problem Database
Problem Display
PID: 184856 (8/4N1p1/3p1kPp/2nPR2p/7P/4nK2/4Q3/8 w - - 0 1)
Jewetsky, Feodor Orestovich
125 Shakhmaty Zadachi (Eventski), 1908
#2
7 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Kxe5
- 2.Qb2#
- 1...Sd1
- 2.Rf5#
- 1...Sf1
- 2.Rf5#
- 1...Sc2
- 2.Rf5#
- 1...Sg2
- 2.Rf5#
- 1...Sc4
- 2.Rf5#
- 1...Sg4
- 2.Rf5#
- 1...Sxd5
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sb3
- 2.Re6#
- 1...Sd3
- 2.Re6#
- 1...Sa4
- 2.Re6#
- 1...Se4
- 2.Re6#
- 1...Sa6
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...Sb7
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Kxe5
- Tries
- 1.Kxe3?
- 1...Kxe5
- 2.Qb2#
- 1...Se6
- 2.Rxe6#
- 1...Sb3
- 2.Re6#
- 1...Sd3
- 2.Re6#
- 1...Sa4
- 2.Re6#
- 1...Se4
- 2.Re6#
- 1...Sa6
- 2.Re6#
- 1...Sb7
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...dxe5!
- 1...Kxe5
- 1.Rxe3?
- threat
- 2.Qb2#
- 1...Se6
- 2.Rxe6#
- 1...Sb3
- 2.Re6#
- 1...Sd3
- 2.Re6#
- 1...Sa4
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Se4!
- threat
- 1.Qe1?
- 1...Kxe5
- 2.Qc3#
- 2.Qa1#
- 1...Sxd5
- 2.Rf5#
- 1...Se6
- 2.Rxe6#
- 1...Sd1
- 2.Rf5#
- 1...Sf1
- 2.Rf5#
- 1...Sc2
- 2.Rf5#
- 1...Sg2
- 2.Rf5#
- 1...Sc4
- 2.Rf5#
- 1...Sg4
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sb3
- 2.Re6#
- 1...Sd3
- 2.Re6#
- 1...Sa4
- 2.Re6#
- 1...Se4
- 2.Re6#
- 1...Sa6
- 2.Re6#
- 1...Sb7
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...dxe5!
- 1...Kxe5
- 1.Qc2?
- 1...Kxe5
- 2.Qb2#
- 2.Qc3#
- 1...Sxd5
- 2.Qf5#
- 1...dxe5
- 2.Sg8#
- 1...Se6
- 2.Rxe6#
- 1...Sd1
- 2.Qf5#
- 1...Sf1
- 2.Qf5#
- 1...Sg2
- 2.Qf5#
- 1...Sc4
- 2.Qf5#
- 1...Sg4
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sb3
- 2.Re6#
- 1...Sd3
- 2.Re6#
- 1...Sa4
- 2.Re6#
- 1...Se4
- 2.Re6#
- 1...Sa6
- 2.Re6#
- 1...Sb7
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Sxc2!
- 1...Kxe5
- 1.Qxe3?
- threat
- 2.Rf5#
- 2.Qf4#
- 1...Se4
- 2.Re6#
- 2.Qf4#
- 1...Se6
- 2.Rxe6#
- 1...Sd3
- 2.Rf5#
- 2.Re6#
- 1...dxe5!
- threat
- 1.Kxe3?
- Keys
- 1.Qd3!
- 1...Kxe5
- 2.Qc3#
- 1...Sxd5
- 2.Qf5#
- 1...Sxd3
- 2.Re6#
- 1...dxe5
- 2.Sg8#
- 1...Se6
- 2.Rxe6#
- 1...Sd1
- 2.Qf5#
- 1...Sf1
- 2.Qf5#
- 1...Sc2
- 2.Qf5#
- 1...Sg2
- 2.Qf5#
- 1...Sc4
- 2.Qf5#
- 1...Sg4
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sb3
- 2.Re6#
- 1...Sa4
- 2.Re6#
- 1...Se4
- 2.Re6#
- 1...Sa6
- 2.Re6#
- 1...Sb7
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Kxe5
- 1.Qd3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 9
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(e);OGATEB,P_SPINS(a),S_FLIGHT,XR(E)::QAB(A)
- S(a);N_GUARD::R1(E)
- S(a);N_GUARD,XP(D)::R1(E)
- S(a);N_GUARD::R1(E),XS(a)
- S(b);N_GUARD::R1(E)
- S(b);N_GUARD::R1(E),XS(b)
- Tries
- Try
- K(B);P-FLIGHT,XS(a)
- Vars
- K(e);OGATEB,S_FLIGHT,XR(E)::QAB(A)
- S(b);N_GUARD::R1(E),XS(b)
- S(b);N_GUARD::R1(E)
- Refutation
- P(d);XR(E)
- Try
- R(E);XS(a)
- Threat
- QAB(A)
- Vars
- S(b);N_GUARD::R1(E),XS(b)
- S(b);N_GUARD::R1(E)
- Refutation
- S(b);
- Try
- Q(A);
- Vars
- S(a);N_GUARD,XP(D)::R1(E)
- S(b);N_GUARD::R1(E),XS(b)
- S(a);N_GUARD::R1(E)
- S(a);N_GUARD::R1(E),XS(a)
- S(b);N_GUARD::R1(E)
- Refutation
- P(d);XR(E)
- Try
- Q(A);
- Vars
- S(a);N_GUARD,XP(D)::QAR1(A)
- P(d);SBLOCK,XR(E)::S(G)
- S(b);N_GUARD::R1(E),XS(b)
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- S(b);N_GUARD::R1(E)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);XS(a)
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::R1(E),XS(b)
- Refutation
- P(d);XR(E)
- Try
- Actual
- Q(A);
- Vars
- K(e);OGATEB,S_FLIGHT,XR(E)::QAB(A)
- S(a);N_GUARD,XP(D)::QAR1(A)
- S(b);N_GUARD,XQ(A)::R1(E)
- P(d);SBLOCK,XR(E)::S(G)
- S(b);N_GUARD::R1(E),XS(b)
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- S(b);N_GUARD::R1(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).