MESON Chess Problem Database
Problem Display
PID: 243820 (3b1r1q/1N3ppb/3R4/5Q1r/K1kB1p2/8/N7/8 w - - 0 1)
Chepizhni, Viktor Ivanovich
Schach, 1961
#2
6 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qb5#
- 1...Rh2
- 2.Qb5#
- 1...Rh3
- 2.Qb5#
- 1...Rh4
- 2.Qb5#
- 1...Rh6
- 2.Qb5#
- 1...Bg8
- 2.Qc2#
- 1...Bh4
- 2.Sa5#
- 1...Ba5
- 2.Sxa5#
- 1...Bg5
- 2.Sa5#
- 2.Qb5#
- 1...Bf6
- 2.Sa5#
- 1...Be7
- 2.Sa5#
- 1...g5
- 2.Qb5#
- 1...g6
- 2.Qc2#
- 1...Rh1
- Tries
- 1.Ba1?
- threat
- 2.Rd4#
- 2.Rc6#
- 1...Rxf5
- 2.Rd4#
- 1...Bxf5
- 2.Rd4#
- 1...Rh6
- 2.Rd4#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Bf6
- 2.Sa5#
- 2.Rc6#
- 1...Be7
- 2.Sa5#
- 2.Rd4#
- 1...g5
- 2.Rc6#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...g6
- 2.Rc6#
- 2.Qd3#
- 1...Bb6!
- threat
- 1.Bg1?
- threat
- 2.Rd4#
- 2.Rc6#
- 1...Rxf5
- 2.Rd4#
- 1...Bxf5
- 2.Rd4#
- 1...Rh6
- 2.Rd4#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Bf6
- 2.Sa5#
- 2.Rc6#
- 1...Be7
- 2.Sa5#
- 2.Rd4#
- 1...g5
- 2.Rc6#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...g6
- 2.Rc6#
- 2.Qd3#
- 1...Bb6!
- threat
- 1.Bb2?
- threat
- 2.Rd4#
- 2.Rc6#
- 1...Rxf5
- 2.Rd4#
- 1...Bxf5
- 2.Rd4#
- 1...Rh6
- 2.Rd4#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Bf6
- 2.Sa5#
- 2.Rc6#
- 1...Be7
- 2.Sa5#
- 2.Rd4#
- 1...g5
- 2.Rc6#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...g6
- 2.Rc6#
- 2.Qd3#
- 1...Bb6!
- threat
- 1.Bf2?
- threat
- 2.Rd4#
- 2.Rc6#
- 1...Rxf5
- 2.Rd4#
- 1...Bxf5
- 2.Rd4#
- 1...Rh6
- 2.Rd4#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Bf6
- 2.Sa5#
- 2.Rc6#
- 1...Be7
- 2.Sa5#
- 2.Rd4#
- 1...g5
- 2.Rc6#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...g6
- 2.Rc6#
- 2.Qd3#
- 1...Bb6!
- threat
- 1.Bc3?
- threat
- 2.Rd4#
- 2.Rc6#
- 1...Rxf5
- 2.Rd4#
- 1...Bxf5
- 2.Rd4#
- 1...Rh6
- 2.Rd4#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Bf6
- 2.Sa5#
- 2.Rc6#
- 1...Be7
- 2.Sa5#
- 2.Rd4#
- 1...g5
- 2.Rc6#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...g6
- 2.Rc6#
- 2.Qd3#
- 1...Bb6!
- threat
- 1.Bb6?
- threat
- 2.Sa5#
- 2.Rd4#
- 2.Rc6#
- 1...Rxf5
- 2.Rd4#
- 1...Bxf5
- 2.Sa5#
- 2.Rd4#
- 1...Rh6
- 2.Sa5#
- 2.Rd4#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Bf6
- 2.Sa5#
- 2.Rc6#
- 1...Be7
- 2.Sa5#
- 2.Rd4#
- 1...g5
- 2.Sa5#
- 2.Rc6#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...g6
- 2.Sa5#
- 2.Rc6#
- 2.Qd3#
- 1...Bxb6!
- threat
- 1.Ba7?
- threat
- 2.Rd4#
- 2.Rc6#
- 1...Rxf5
- 2.Rd4#
- 1...Bxf5
- 2.Rd4#
- 1...Rh6
- 2.Rd4#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...Bf6
- 2.Sa5#
- 2.Rc6#
- 1...Be7
- 2.Sa5#
- 2.Rd4#
- 1...g5
- 2.Rc6#
- 2.Qb5#
- 2.Qc5#
- 2.Qd5#
- 1...g6
- 2.Rc6#
- 2.Qd3#
- 1...Bb6!
- threat
- 1.Ba1?
- Keys
- 1.Bc5!
- threat
- 2.Rd4#
- 1...Bf6
- 2.Sa5#
- 1...g5
- 2.Qd5#
- 1...g6
- 2.Qd3#
- threat
- 1.Bc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- R(c);N_GUARD::QAB1(D)
- B(f);N_GUARD::QAR2(D)
- B(g);N_GUARD::S(F)
- B(g);N_GUARD::S(F),XB(g)
- P(e);S_CUTR(c)::QAB1(D)
- P(e);S_CUTB(f)::QAR2(D)
- Tries
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(c);XQ(D)::R1(E)
- B(f);XQ(D)::R1(E)
- Refutation
- B(g);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(c);XQ(D)::R1(E)
- B(f);XQ(D)::R1(E)
- Refutation
- B(g);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(c);XQ(D)::R1(E)
- B(f);XQ(D)::R1(E)
- Refutation
- B(g);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(c);XQ(D)::R1(E)
- B(f);XQ(D)::R1(E)
- Refutation
- B(g);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(c);XQ(D)::R1(E)
- B(f);XQ(D)::R1(E)
- Refutation
- B(g);
- Try
- B(C);
- Threat
- DUALS(3)
- Vars
- R(c);XQ(D)::R1(E)
- Refutation
- B(g);XB(C)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(c);XQ(D)::R1(E)
- B(f);XQ(D)::R1(E)
- Refutation
- B(g);
- Try
- Actual
- B(C);
- Threat
- R1(E)
- Vars
- B(g);N_GUARD::S(F)
- P(e);S_CUTR(c)::QAB1(D)
- P(e);S_CUTB(f)::QAB1(D)
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).