MESON Chess Problem Database
Problem Display
PID: 56637 (4R3/8/5p2/1R2nP2/1B6/pB1k2K1/6p1/6Q1 w - - 0 1)
Shifrin, Semion
2nd Prize, Wola Gulowska, 1997
#2
7 + 5
| 15345 | Wola Gulowska Award | 1997 |
| 5418 | FIDE Album (1995-1997) (Annexe) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Ke2
- 2.Bc4#
- 1...Ke4
- 2.Bc2#
- 1...Sf3
- 2.Qe3#
- 1...Sc4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 2.Qd1#
- 1...Sc6
- 2.Qe3#
- 2.Qd1#
- 1...Sg6
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sd7
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sf7
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Ke2
- Tries
- 1.Kf4?
- threat
- 2.Qe3#
- 2.Qd1#
- 1...Ke2
- 2.Bc4#
- 1...Sf3
- 2.Qe3#
- 1...Sc4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 2.Qd1#
- 1...Sg6+!
- threat
- 1.Ba2?
- 1...Kc2
- 2.Qb1#
- 1...Ke2
- 2.Bc4#
- 1...Ke4
- 2.Bb1#
- 1...Sc4
- 2.Bb1#
- 1...Sg4
- 2.Qd1#
- 1...Sc6
- 2.Qd1#
- 1...Sg6
- 2.Qd1#
- 1...Sd7
- 2.Qd1#
- 1...Sf7
- 2.Qd1#
- 1...Sf3!
- 1...Kc2
- 1.Bc2+?
- 1...Ke2
- 2.Qf2#
- 2.Qe1#
- 1...Kc4
- 2.Qc5#
- 1...Kxc2!
- 1...Ke2
- 1.Ba5?
- 1...Ke2
- 2.Bc4#
- 1...Ke4
- 2.Bc2#
- 1...Sf3
- 2.Qe3#
- 1...Sc4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 2.Qd1#
- 1...Sc6
- 2.Qe3#
- 2.Qd1#
- 1...Sg6
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sd7
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sf7
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...a2!
- 1...Ke2
- 1.Ra5?
- 1...Ke2
- 2.Bc4#
- 1...Ke4
- 2.Bc2#
- 1...Sf3
- 2.Qe3#
- 1...Sc4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 2.Qd1#
- 1...Sc6
- 2.Qe3#
- 2.Qd1#
- 1...Sg6
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sd7
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sf7
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...a2!
- 1...Ke2
- 1.Rc5?
- 1...Ke2
- 2.Bc4#
- 1...Ke4
- 2.Bc2#
- 1...Sf3
- 2.Bc2#
- 2.Qe3#
- 1...Sc4
- 2.Rd5#
- 1...Sg4
- 2.Bc2#
- 2.Rd5#
- 2.Qd1#
- 1...Sc6
- 2.Bc2#
- 2.Qe3#
- 2.Qd1#
- 1...Sg6
- 2.Bc2#
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sd7
- 2.Bc2#
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sf7
- 2.Bc2#
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...a2!
- 1...Ke2
- 1.Rd5+?
- 1...Ke2
- 2.Bd1#
- 2.Bc4#
- 2.Rd2#
- 2.Qf2#
- 2.Qe1#
- 1...Ke4!
- 1...Ke2
- 1.Re6?
- 1...Ke2
- 2.Bc4#
- 1...Ke4
- 2.Bc2#
- 1...Sf3
- 2.Qe3#
- 1...Sc4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 2.Qd1#
- 1...Sc6
- 2.Qe3#
- 2.Qd1#
- 1...Sg6
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sd7
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sf7
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...a2!
- 1...Ke2
- 1.Re7?
- 1...Ke2
- 2.Bc4#
- 1...Ke4
- 2.Bc2#
- 1...Sf3
- 2.Qe3#
- 1...Sc4
- 2.Rd5#
- 1...Sg4
- 2.Rd5#
- 2.Qd1#
- 1...Sc6
- 2.Qe3#
- 2.Qd1#
- 1...Sg6
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sd7
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...Sf7
- 2.Rd5#
- 2.Qe3#
- 2.Qd1#
- 1...a2!
- 1...Ke2
- 1.Qd4+?
- 1...Ke2
- 2.Bc4#
- 1...Kxd4!
- 1...Ke2
- 1.Kf4?
- Keys
- 1.Bc5!
- threat
- 2.Qe3#
- 1...Kd2
- 2.Qe3#
- 1...Ke2
- 2.Qd1#
- 1...Kc3
- 2.Qd4#
- 1...Ke4
- 2.Qb1#
- 1...Sc4
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- threat
- 1.Bc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- K(c);P_SPINS(d),S_FLIGHT::B(B)
- S(d);::QAR1(A)
- S(d);::R(E)
- Tries
- Try
- K(C);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- K(c);P_SPINS(d),S_FLIGHT::B(B)
- S(d);::QAR1(A)
- S(d);::R(E)
- Refutation
- S(d);CHECK
- Try
- B(B);
- Vars
- K(c);S_FLIGHT::QAB1(A)
- K(c);P_SPINS(d),S_FLIGHT::B(B)
- S(d);SBLOCK::B(B)
- S(d);::QAR2(A)
- Refutation
- S(d);
- Try
- B(B);CHECK
- Vars
- K(c);S_FLIGHT::QAR1(A)
- Refutation
- K(c);S_FLIGHT,XB(B)
- Try
- B(D);
- Vars
- K(c);P_SPINS(d),S_FLIGHT::B(B)
- S(d);::QAR1(A)
- S(d);::R(E)
- Refutation
- P(b);
- Try
- R(E);
- Vars
- K(c);P_SPINS(d),S_FLIGHT::B(B)
- S(d);::QAR1(A)
- S(d);::R(E)
- Refutation
- P(b);
- Try
- R(E);
- Vars
- K(c);P_SPINS(d),S_FLIGHT::B(B)
- S(d);::R(E)
- Refutation
- P(b);
- Try
- R(E);CHECK
- Refutation
- K(c);P_SPINS(d),S_FLIGHT
- Try
- R(G);
- Vars
- K(c);P_SPINS(d),S_FLIGHT::B(B)
- S(d);::QAR1(A)
- S(d);::R(E)
- Refutation
- P(b);
- Try
- R(G);
- Vars
- K(c);P_SPINS(d),S_FLIGHT::B(B)
- S(d);::QAR1(A)
- S(d);::R(E)
- Refutation
- P(b);
- Try
- Q(A);CHECK
- Vars
- K(c);P_SPINS(d),S_FLIGHT::B(B)
- Refutation
- K(c);P-FLIGHT,XQ(A)
- Try
- Actual
- B(D);
- Threat
- QAR1(A)
- Vars
- K(c);P-FLIGHT::QAB1(A)
- K(c);P_SPINS(d),S_FLIGHT::QAB1(A)
- K(c);P_SPINS(d),S_FLIGHT::QAB(A)
- S(d);::QAR1(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).