MESON Chess Problem Database
Problem Display
PID: 246075 (8/4K3/6B1/2R5/2bR4/1k6/8/Q7 w - - 0 1)
Zinoviev, Nikolai
Problemist Pribuzhya, 1990
#2
5 + 2
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf1
- Tries
- 1.Kd6?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bf1
- 1.Kf6?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bf1
- 1.Kd8?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bf1
- 1.Ke8?
- 1...Bb5+
- 2.Rxb5#
- 1...Bf7+
- 2.Bxf7#
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bb5+
- 1.Kf8?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bf1
- 1.Bb1?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 2.Qc3#
- 2.Qa2#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 2.Qc3#
- 2.Qa2#
- 1...Bd3
- 2.Rc3#
- 2.Qc3#
- 2.Qa2#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 2.Qc3#
- 2.Qa2#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 2.Qc3#
- 2.Qa2#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 2.Qc3#
- 2.Qa2#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 2.Qc3#
- 2.Qa2#
- 1...Bf7
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 2.Qc3#
- 2.Qa2#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 2.Qc3#
- 2.Qa2#
- 1...Kb4!
- 1...Bf1
- 1.Bc2+?
- 1...Kb4
- 2.Rdxc4#
- 2.Qa5#
- 1...Kxc2!
- 1...Kb4
- 1.Bd3?
- 1...Bxd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bxd3
- 1.Be4?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Bxd5#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bf1
- 1.Bf5?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Bxe6#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bf1
- 1.Bh5?
- 1...Kc2
- 2.Bd1#
- 1...Bf1
- 2.Bd1#
- 2.Rc3#
- 1...Be2
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bd1#
- 2.Rc3#
- 1...Bd5
- 2.Bd1#
- 2.Rc3#
- 1...Ba6
- 2.Bd1#
- 2.Rc3#
- 1...Be6
- 2.Bd1#
- 2.Rc3#
- 1...Bf7
- 2.Bd1#
- 2.Bxf7#
- 2.Rc3#
- 1...Bg8
- 2.Bd1#
- 2.Rc3#
- 1...Kb4!
- 1...Kc2
- 1.Bh7?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Bxg8#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bf1
- 1.Rd2?
- 1...Bf1
- 2.Rb2#
- 1...Be2
- 2.Rb2#
- 1...Bd3
- 2.Rb2#
- 1...Bb5
- 2.Rb2#
- 1...Bd5
- 2.Rb2#
- 1...Ba6
- 2.Rb2#
- 1...Be6
- 2.Rb2#
- 1...Bf7
- 2.Rb2#
- 1...Bg8
- 2.Rb2#
- 1...Kb4!
- 1...Bf1
- 1.Rd3+?
- 1...Kc2
- 2.Rxc4#
- 1...Kb4
- 2.Qa3#
- 2.Qa5#
- 1...Bxd3!
- 1...Kc2
- 1.Rf4?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bf1
- 1.Rg4?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bf1
- 1.Rh4?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 2.Rxb5#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb5#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb5#
- 1...Kb4!
- 1...Bf1
- 1.Ra5?
- threat
- 2.Qa3#
- 1...Kb4
- 2.Qa3#
- 1...Bd3!
- threat
- 1.Rc6?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 2.Rb6#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb6#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb6#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb6#
- 1...Kb4!
- 1...Bf1
- 1.Rc7?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb7#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb7#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb7#
- 1...Kb4!
- 1...Bf1
- 1.Rc8?
- 1...Bf1
- 2.Bc2#
- 2.Rc3#
- 1...Be2
- 2.Bc2#
- 2.Rc3#
- 1...Bd3
- 2.Rc3#
- 1...Bb5
- 2.Bc2#
- 2.Rc3#
- 1...Bd5
- 2.Bc2#
- 2.Rc3#
- 1...Ba6
- 2.Bc2#
- 2.Rc3#
- 1...Be6
- 2.Bc2#
- 2.Rc3#
- 2.Rb8#
- 1...Bf7
- 2.Bc2#
- 2.Bxf7#
- 2.Rc3#
- 2.Rb8#
- 1...Bg8
- 2.Bc2#
- 2.Rc3#
- 2.Rb8#
- 1...Kb4!
- 1...Bf1
- 1.Qb2+?
- 1...Ka4
- 2.Bc2#
- 2.Be8#
- 2.Rdxc4#
- 1...Kxb2!
- 1...Ka4
- 1.Qc3+?
- 1...Ka2
- 2.Rd2#
- 2.Ra5#
- 1...Ka4
- 2.Bc2#
- 2.Be8#
- 2.Rdxc4#
- 2.Ra5#
- 1...Kxc3!
- 1...Ka2
- 1.Qb1+?
- 1...Ka3
- 2.Ra5#
- 1...Kc3
- 2.Rd3#
- 2.Rcxc4#
- 1...Ka4!
- 1...Ka3
- 1.Qa2+?
- 1...Kc3
- 2.Rdxc4#
- 2.Rcxc4#
- 1...Kb4
- 2.Rdxc4#
- 1...Kxa2!
- 1...Kc3
- 1.Qa5?
- 1...Bf1
- 2.Rb4#
- 1...Be2
- 2.Rb4#
- 1...Bd3
- 2.Rb4#
- 1...Bb5
- 2.Rb4#
- 2.Rxb5#
- 1...Bd5
- 2.Rb4#
- 2.Rb5#
- 1...Ba6
- 2.Rb4#
- 1...Be6
- 2.Rb4#
- 2.Rb5#
- 1...Bf7
- 2.Rb4#
- 2.Rb5#
- 1...Bg8
- 2.Rb4#
- 2.Rb5#
- 1...Kb2!
- 1...Bf1
- 1.Kd6?
- Keys
- 1.Be8!
- 1...Kc2
- 2.Ba4#
- 1...Kb4
- 2.Rb5#
- 1...Bf1
- 2.Ba4#
- 2.Rc3#
- 1...Be2
- 2.Ba4#
- 2.Rc3#
- 1...Bd3
- 2.Ba4#
- 2.Rc3#
- 1...Bb5
- 2.Rc3#
- 1...Bd5
- 2.Ba4#
- 2.Rc3#
- 1...Ba6
- 2.Ba4#
- 2.Rc3#
- 1...Be6
- 2.Ba4#
- 2.Rc3#
- 1...Bf7
- 2.Ba4#
- 2.Bxf7#
- 2.Rc3#
- 1...Bg8
- 2.Ba4#
- 2.Rc3#
- 1...Kc2
- 1.Be8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- B(b);OGATE::R1(C)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- K(E);S_FLIGHT
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- K(E);S_FLIGHT
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- K(E);P-FLIGHT
- Vars
- B(b);CHECK,N_GUARD::R(C),XB(b)
- B(b);CHECK,OGATEB::B(D),XB(b)
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- K(E);S_FLIGHT
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- B(D);
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- B(D);CHECK
- Refutation
- K(a);P_SPINB(b),S_FLIGHT,XB(D)
- Try
- B(D);
- Vars
- B(b);OGATE,XB(D)::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- B(D);
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- B(D);
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- B(D);
- Vars
- K(a);P_SPINB(b),S_FLIGHT::B(D)
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- B(D);
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- R(B);
- Vars
- B(b);::R1(B)
- Refutation
- K(a);P-FLIGHT
- Try
- R(B);CHECK
- Vars
- K(a);P_SPINB(b),S_FLIGHT::R(C),XB(b)
- Refutation
- B(b);XR(B)
- Try
- R(B);
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- R(B);
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- R(B);
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- R(C);
- Threat
- QAR1(A)
- Vars
- K(a);P-FLIGHT,P_SPINB(b)::QAB1(A)
- Refutation
- B(b);
- Try
- R(C);
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- R(C);
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- R(C);
- Vars
- B(b);OGATE::R1(C)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- Q(A);CHECK
- Refutation
- K(a);P-FLIGHT,XQ(A)
- Try
- Q(A);CHECK
- Refutation
- K(a);P-FLIGHT,P_SPINB(b),XQ(A)
- Try
- Q(A);CHECK
- Vars
- K(a);P-FLIGHT::R(C)
- Refutation
- K(a);P_SPINB(b),S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(a);P-FLIGHT,P_SPINB(b)::R1(B),XB(b)
- Refutation
- K(a);S_FLIGHT,XQ(A)
- Try
- Q(A);
- Vars
- B(b);OGATE::R1(B)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- B(D);
- Vars
- K(a);P_SPINB(b),S_FLIGHT::B(D)
- K(a);P-FLIGHT,P_SPINB(b)::R1(C)
- B(b);OGATE::R1(C)
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).