MESON Chess Problem Database
Problem Display
PID: 177896 (8/1pr1B3/1KnNB1pp/1pQ5/1r3kN1/4R3/5b2/5R1n w - - 0 1)
Kisis, Imants J
5th HM., Sahs (Latvia), 1984
#2
8 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sg3
- 2.Rxf2#
- 1...Sd4
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sa7
- 2.Qe5#
- 1...Sxe7
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sd8
- 2.Qe5#
- 1...g5
- 2.Qf5#
- 1...h5
- 2.Bg5#
- 2.Qg5#
- 1...Sg3
- Tries
- 1.Sxf2?
- threat
- 2.Sxh1#
- 2.Sd3#
- 2.Sh3#
- 1...Sxf2
- 2.Rxf2#
- 1...Sd4
- 2.Qe5#
- 1...Rb1
- 2.Sd3#
- 2.Sh3#
- 1...Rb2
- 2.Sd3#
- 2.Sh3#
- 1...Sg3
- 2.Sd3#
- 2.Sh3#
- 1...Se5
- 2.Sd3#
- 2.Sh3#
- 2.Qxe5#
- 1...Rd4!
- threat
- 1.Sh2?
- threat
- 2.Rf3#
- 1...Sd4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Rb3!
- threat
- 1.Se5?
- threat
- 2.Sd3#
- 2.Sxg6#
- 2.Rf3#
- 1...Rxe7
- 2.Sd3#
- 2.Sxg6#
- 1...Sxe5
- 2.Qxe5#
- 1...Sxe7
- 2.Sd3#
- 1...Rd4
- 2.Rf3#
- 1...Rb3
- 2.Sxg6#
- 1...g5
- 2.Sd3#
- 2.Sg6#
- 2.Rf3#
- 1...Sd4!
- threat
- 1.Sxh6?
- threat
- 2.Bg5#
- 2.Qg5#
- 1...Sxe7
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...Rxe7!
- threat
- 1.Rd3?
- threat
- 2.Qe3#
- 1...Rd4
- 2.Qc1#
- 1...Sd4
- 2.Qe5#
- 1...Re4!
- threat
- 1.Qxb4+?
- 1...Sd4
- 2.Qxd4#
- 1...Sxb4!
- 1...Sd4
- 1.Qd5?
- threat
- 2.Qf3#
- 1...Sxe7
- 2.Qe5#
- 1...Re4
- 2.Qxe4#
- 1...Sd4
- 2.Qe4#
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Rxe7!
- threat
- 1.Sxf2?
- Keys
- 1.Qc3!
- threat
- 2.Qf6#
- 1...Sxe7
- 2.Qe5#
- 1...Rd4
- 2.Rf3#
- 1...Sg3
- 2.Rxf2#
- 1...Sd4
- 2.Re4#
- 1...Se5
- 2.Qxe5#
- threat
- 1.Qc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- S(a);N_GUARD::R(A),XB(b)
- S(f);N_GUARD::QAB1(D)
- S(f);N_GUARD::QAB1(D),XS(f)
- S(f);N_GUARD,XB(H)::QAB1(D)
- P(g);N_GUARD::QAR1(D)
- Tries
- Try
- S(C);XB(b)
- Threat
- DUALS(3)
- Vars
- S(a);OGATE,P_SPINS(a),XS(C)::R(A),XS(a)
- S(f);N_GUARD::QAB1(D)
- Refutation
- R(c);
- Try
- S(C);
- Threat
- R1(B)
- Vars
- S(f);N_GUARD::QAB1(D)
- S(f);N_GUARD::QAB1(D),XS(f)
- Refutation
- R(c);
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- S(f);OGATE,XS(C)::QAB1(D),XS(f)
- S(f);XB(H)::S(C)
- R(c);::R1(B)
- R(c);::S(C),XP(g)
- Refutation
- S(f);
- Try
- S(C);XP(h)
- Threat
- DUALS(2)
- Vars
- S(f);N_GUARD,XB(H)::QAB1(D)
- S(f);N_GUARD::QAB1(D),XS(f)
- Refutation
- R(j);XB(H)
- Try
- R(B);P_SPINQ(D)
- Threat
- QAB1(D)
- Vars
- R(c);N_PINQ(D)::QAB(D)
- S(f);N_PINQ(D)::QAB1(D)
- Refutation
- R(c);
- Try
- Q(D);CHECK,P_SPINR(B),XR(c)
- Vars
- S(f);N_GUARD,N_PINR(B),P_SPINS(f)::QAR2(D),XS(f)
- Refutation
- S(f);XQ(D)
- Try
- Q(D);P_SPINR(B)
- Threat
- QAR1(D)
- Vars
- S(f);N_GUARD,XB(H)::QAB1(D)
- R(c);N_GUARD::QAR1(D),XR(c)
- S(f);N_GUARD::QAB1(D),XS(f)
- Refutation
- R(j);XB(H)
- Try
- Actual
- Q(D);P_SPINR(B)
- Threat
- QAR2(D)
- Vars
- S(f);N_GUARD,XB(H)::QAB1(D)
- R(c);N_PINR(B)::R1(B)
- S(a);N_GUARD::R(A),XB(b)
- S(f);N_PINR(B)::R1(B)
- S(f);N_GUARD::QAB1(D),XS(f)
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).