MESON Chess Problem Database
Problem Display
PID: 50487 (3N4/2p2R2/2Nb4/2p1p3/2p1k1P1/3p2Q1/3B4/1B2K2b w - - 0 1)
Livshits, Eduard Yakovlevich
1/2 Prize, Galitzky MT, 1963
#2
8 + 8
| 3747 | FIDE Album (1962-1964) | 1968 |
| 3335 | Cyclone | 2000 |
SOLUTION
- SOUND
- Sets
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Qxf3#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Bg2
- Tries
- 1.Kd1?
- 1...Bf3+
- 2.Qxf3#
- 1...Bg2
- 2.Qxg2#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bf3+
- 1.Kf1?
- 1...Bg2+
- 2.Qxg2#
- 1...Bf3
- 2.Qxf3#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bg2+
- 1.Kf2?
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Qxf3#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bg2
- 1.Se6?
- 1...Bf3
- 2.Qxf3#
- 1...Bg2
- 2.Qxg2#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bf3
- 1.Sb7?
- 1...Bf3
- 2.Qxf3#
- 1...Bg2
- 2.Qxg2#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bf3
- 1.Bc1?
- 1...Bf3
- 2.Qxf3#
- 1...Bg2
- 2.Qxg2#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bf3
- 1.Bg5?
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Qxf3#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bg2
- 1.Bh6?
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Qxf3#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bg2
- 1.Rf1?
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Qxf3#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bg2
- 1.Rf2?
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Qxf3#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bg2
- 1.Rf5?
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Qxf3#
- 1...Be7
- 2.Rxe5#
- 2.Qxe5#
- 1...Bf8
- 2.Rxe5#
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bg2
- 1.Rf6?
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Qxf3#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bg2
- 1.Rd7?
- 1...Kd5
- 2.Qxe5#
- 1...Bg2
- 2.Qxg2#
- 1...Be7
- 2.Qe3#
- 1...Bf8
- 2.Qe3#
- 1...c3
- 2.Qxd3#
- 1...Bf3!
- 1...Kd5
- 1.Qh3?
- threat
- 2.Qxh1#
- 1...Bf3
- 2.Qxf3#
- 1...Bg2
- 2.Qxg2#
- 1...Kd5!
- threat
- 1.g5?
- 1...Bf3
- 2.Qxf3#
- 1...Bg2
- 2.Qxg2#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qxd3#
- 1...Kd5!
- 1...Bf3
- 1.Kd1?
- Keys
- 1.Ba2!
- 1...Kd5
- 2.Qxd3#
- 1...Bf3
- 2.Qxf3#
- 1...Bg2
- 2.Qxg2#
- 1...Be7
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...c3
- 2.Qe3#
- 1...Kd5
- 1.Ba2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- B(a);CHECK,N_GUARD::QAB1(D),XB(a)
- B(a);N_GUARD::QAB(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- K(B);P-FLIGHT
- Vars
- B(a);CHECK,N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- K(B);S_FLIGHT
- Vars
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- S(H);
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- B(a);N_GUARD::QAB(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- S(H);
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- B(a);N_GUARD::QAB(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- B(C);
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- B(a);N_GUARD::QAB(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- B(C);
- Vars
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- B(C);
- Vars
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- R(G);
- Vars
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- R(G);
- Vars
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- R(G);
- Vars
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),P_SPINP(f),S_FLIGHT
- Try
- R(G);
- Vars
- B(a);N_GUARD::QAB(D),XB(a)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- R(G);
- Vars
- K(d);N_SPINP(b),P_SPINB(g),S_FLIGHT::QAR1(D),XP(f)
- B(a);N_GUARD::QAB(D),XB(a)
- B(g);::QAR1(D)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- B(a);
- Try
- Q(D);
- Threat
- QAB(D),XB(a)
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- B(a);N_GUARD::QAB(D),XB(a)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- P(E);
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- B(a);N_GUARD::QAB(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);N_GUARD::QAB1(D),XP(b)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- Actual
- B(A);N_PINP(b)
- Vars
- K(d);P_SPINP(c),S_FLIGHT::QAR2(D),XP(b)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(a);N_GUARD::QAB(D),XB(a)
- B(g);N_GUARD::QAR1(D),XP(f)
- P(c);::QAR1(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).