MESON Chess Problem Database
Problem Display
PID: 235084 (1B3R2/4rN1p/p2N2pK/3Bpp1P/1p3k2/q1p4P/5P2/3Qn3 w - - 0 1)
Shanshin, Valery Yurevich
SEPA-80 JT (Problemas), 2013-2014
#2
10 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Qxc1#
- 1...Qb3
- 2.Qc1#
- 1...Qa4
- 2.Qc1#
- 1...Qa5
- 2.Qc1#
- 1...Sc2
- 2.Qf3#
- 1...Sg2
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Qc1
- Tries
- 1.Sc4?
- threat
- 2.Qd4#
- 1...Sc2
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Rc7!
- threat
- 1.Sb5?
- threat
- 2.Qd4#
- 1...Sc2
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Rc7!
- threat
- 1.Sxf5?
- threat
- 2.Qg4#
- 1...Kxf5
- 2.Sd6#
- 1...gxf5
- 2.Qd4#
- 1...Sf3
- 2.Qxf3#
- 1...gxh5!
- threat
- 1.Sb7?
- threat
- 2.Qd4#
- 1...Sc2
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Rc7!
- threat
- 1.Sc8?
- threat
- 2.Qd4#
- 1...Sc2
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Rc7!
- threat
- 1.Se8?
- threat
- 2.Qd4#
- 1...Sc2
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Rc7!
- threat
- 1.Sg5?
- threat
- 2.Qg4#
- 1...gxh5
- 2.Rxf5#
- 1...Rf7
- 2.Se6#
- 1...Sf3
- 2.Qxf3#
- 1...e4!
- threat
- 1.Sd8?
- threat
- 2.Qg4#
- 1...gxh5
- 2.Rxf5#
- 1...Rf7
- 2.Se6#
- 1...Sf3
- 2.Qxf3#
- 1...e4!
- threat
- 1.Qxe1?
- threat
- 2.Qe3#
- 1...Qc1
- 2.Qxc1#
- 1...c2!
- threat
- 1.Qd4+?
- 1...e4
- 2.Qe3#
- 1...exd4!
- 1...e4
- 1.Sc4?
- Keys
- 1.Sxe5!
- threat
- 2.Qd4#
- 1...Kxe5
- 2.Sc4#
- 1...Rxe5
- 2.Qg4#
- 1...Sc2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- threat
- 1.Sxe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(b);N_GUARD::QAB(A),XQ(b)
- Q(b);N_GUARD::QAB(A)
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Tries
- Try
- S(F);P_PINP(f)
- Threat
- QAR2(A)
- Vars
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- R(j);N_SPINP(f)
- Try
- S(F);P_PINP(f)
- Threat
- QAR2(A)
- Vars
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- R(j);N_SPINP(f)
- Try
- S(F);P_PINP(f),XP(g)
- Threat
- QAR1(A)
- Vars
- K(e);N_SPINP(f),P-FLIGHT,XS(F)::R(J)+S(H),DCHECK
- P(i);SBLOCK,XS(F)::QAR2(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- P(i);XP(E)
- Try
- S(F);P_PINP(f)
- Threat
- QAR2(A)
- Vars
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- R(j);N_SPINP(f)
- Try
- S(F);P_PINP(f)
- Threat
- QAR2(A)
- Vars
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- R(j);N_SPINP(f)
- Try
- S(F);P_PINP(f)
- Threat
- QAR2(A)
- Vars
- S(a);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- R(j);N_SPINP(f)
- Try
- S(H);P_PINP(g)
- Threat
- QAR1(A)
- Vars
- P(i);N_GUARD,XP(E)::R1(J),XP(g)
- R(j);N_GUARD,N_SPINP(g)::S(H)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- P(f);
- Try
- S(H);P_PINP(g)
- Threat
- QAR1(A)
- Vars
- P(i);N_GUARD,XP(E)::R1(J),XP(g)
- R(j);N_GUARD,N_SPINP(g)::S(H)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- P(f);
- Try
- Q(A);XS(a)
- Threat
- QAB1(A)
- Vars
- Q(b);N_GUARD::QAB(A),XQ(b)
- Refutation
- P(c);
- Try
- Q(A);CHECK
- Vars
- P(f);P_SPINP(f)::QAB1(A)
- Refutation
- P(f);XQ(A)
- Try
- Actual
- S(H);P_PINP(g),XP(f)
- Threat
- QAR2(A)
- Vars
- K(e);N_SPINP(g),S_FLIGHT,XS(H)::B(I)+S(F),DCHECK
- R(j);SBLOCK,XS(H)::QAR1(A)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(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).