MESON Chess Problem Database
Problem Display
PID: 184842 (8/2K5/8/2Nkp3/3r4/1P6/4PB2/1Q6 w - - 0 1)
Jewetsky, Feodor Orestovich
125 Shakhmaty Zadachi (Eventski), 1908
#2
6 + 3
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qe4#
- 2.Qxd1#
- 2.e4#
- 1...Rd2
- 2.Qe4#
- 2.e4#
- 1...Rd3
- 2.Qxd3#
- 2.e4#
- 1...Re4
- 2.Qxe4#
- 1...Rd1
- Tries
- 1.Bxd4?
- threat
- 2.Qe4#
- 1...exd4
- 2.Qf5#
- 1...e4
- 2.Qxe4#
- 1...Kxd4!
- threat
- 1.Qf5?
- 1...Rd1
- 2.Qe4#
- 2.Qe6#
- 2.Qd7#
- 2.Qf7#
- 2.e4#
- 1...Rd2
- 2.Qe4#
- 2.Qe6#
- 2.Qd7#
- 2.Qf7#
- 2.e4#
- 1...Rd3
- 2.Qxd3#
- 2.Qe4#
- 2.Qe6#
- 2.Qd7#
- 2.Qf7#
- 2.e4#
- 1...Ra4
- 2.Qe6#
- 2.Qd7#
- 2.Qf7#
- 1...Rb4
- 2.Qe6#
- 2.Qd7#
- 2.Qf7#
- 1...Rc4
- 2.Qe6#
- 2.Qd7#
- 2.Qf7#
- 1...Re4
- 2.Qxe4#
- 2.Qe6#
- 2.Qd7#
- 2.Qf7#
- 1...Rf4
- 2.Qe6#
- 2.Qd7#
- 1...Rg4
- 2.Qe6#
- 2.Qd7#
- 2.Qf7#
- 1...Rh4
- 2.Qe6#
- 2.Qd7#
- 2.Qf7#
- 1...Kxc5!
- 1...Rd1
- 1.Qg6?
- threat
- 2.Qc6#
- 2.Qd6#
- 1...e4
- 2.Qf5#
- 2.Qh5#
- 2.Qg5#
- 2.Qd6#
- 1...Kxc5!
- threat
- 1.Qh7?
- 1...e4
- 2.Qf5#
- 2.Qh5#
- 1...Rd1
- 2.Qe4#
- 2.Qg8#
- 2.Qd7#
- 2.Qf7#
- 2.e4#
- 1...Rd2
- 2.Qe4#
- 2.Qg8#
- 2.Qd7#
- 2.Qf7#
- 2.e4#
- 1...Rd3
- 2.Qxd3#
- 2.Qe4#
- 2.Qg8#
- 2.Qd7#
- 2.Qf7#
- 2.e4#
- 1...Ra4
- 2.Qg8#
- 2.Qd7#
- 2.Qf7#
- 1...Rb4
- 2.Qg8#
- 2.Qd7#
- 2.Qf7#
- 1...Rc4
- 2.Qg8#
- 2.Qd7#
- 2.Qf7#
- 1...Re4
- 2.Qxe4#
- 2.Qg8#
- 2.Qd7#
- 2.Qf7#
- 1...Rf4
- 2.Qd7#
- 1...Rg4
- 2.Qd7#
- 2.Qf7#
- 1...Rh4
- 2.Qg8#
- 2.Qd7#
- 2.Qf7#
- 1...Kxc5!
- 1...e4
- 1.Qd1?
- 1...Rxd1
- 2.e4#
- 1...e4
- 2.Qxd4#
- 1...Rd2
- 2.Qxd2#
- 2.e4#
- 1...Rd3
- 2.Qxd3#
- 2.e4#
- 1...Kxc5!
- 1...Rxd1
- 1.Qh1+?
- 1...Re4
- 2.Qxe4#
- 1...e4
- 2.Qh5#
- 1...Kxc5!
- 1...Re4
- 1.e4+?
- 1...Rxe4
- 2.Qxe4#
- 1...Kxc5!
- 1...Rxe4
- 1.Bxd4?
- Keys
- 1.Qd3!
- 1...Kxc5
- 2.Qc4#
- 1...Rxd3
- 2.e4#
- 1...e4
- 2.Qxd4#
- 1...Kxc5
- 1.Qd3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::QAB1(A),XR(a)
- Tries
- Try
- B(C);XR(a)
- Threat
- QAB1(A)
- Vars
- P(c);OGATEB,SBLOCK,XB(C)::QAR2(A)
- P(c);::QAB1(A),XP(c)
- Refutation
- K(b);P-FLIGHT,XB(C)
- Try
- Q(A);P_PINP(c)
- Refutation
- K(b);P-FLIGHT,P_SPINR(a),XS(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Refutation
- K(b);P-FLIGHT,P_SPINR(a),XS(E)
- Try
- Q(A);
- Vars
- R(a);::QAR2(A)
- Refutation
- K(b);P-FLIGHT,P_SPINR(a),XS(E)
- Try
- Q(A);P_PINR(a)
- Vars
- R(a);N_SPINR(a),XQ(A)::P(B)
- P(c);N_GUARD::QAR1(A),XR(a)
- Refutation
- K(b);P-FLIGHT,XS(E)
- Try
- Q(A);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::QAB1(A),XR(a)
- P(c);OGATEB,P_SPINP(c)::QAR(A)
- Refutation
- K(b);P-FLIGHT,P_SPINR(a),XS(E)
- Try
- P(B);CHECK
- Vars
- R(a);OGATE,XP(B)::QAB1(A),XR(a)
- Refutation
- K(b);P-FLIGHT,P_SPINR(a),XS(E)
- Try
- Actual
- Q(A);P_PINR(a)
- Vars
- K(b);P-FLIGHT,XS(E)::QAR1(A)
- R(a);N_SPINR(a),XQ(A)::P(B)
- P(c);N_GUARD::QAR1(A),XR(a)
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).