MESON Chess Problem Database
Problem Display
PID: 134309 (3N4/1p3B2/3p1B1b/Pb2qR2/3k4/P2P3n/2R1P1N1/K2Q4 w - - 0 1)
Ovchinnikov, Valentin N
Pravda, 1926
#2
12 + 7
| 6467 | BCPS Solving Ty. (Harrogate) | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Qxf6
- 2.Rd5#
- 1...Bxd3
- 2.Rc4#
- 2.Qxd3#
- 1...Ba4
- 2.Rc4#
- 1...Bc4
- 2.Rxc4#
- 1...Bc6
- 2.Rc4#
- 1...Bd7
- 2.Rc4#
- 1...Be8
- 2.Rc4#
- 1...Bg7
- 2.e3#
- 1...Bf8
- 2.e3#
- 1...Sf4
- 2.Qg1#
- 2.e3#
- 1...Sg5
- 2.Qg1#
- 2.e3#
- 1...d5
- 2.Se6#
- 2.Bxe5#
- 1...Qxf6
- Tries
- 1.Sc6+?
- 1...Bxc6
- 2.Rc4#
- 1...bxc6!
- 1...Bxc6
- 1.Rf4+?
- 1...Sxf4
- 2.Qg1#
- 2.e3#
- 1...Bxf4!
- 1...Sxf4
- 1.Rxe5?
- threat
- 2.Se6#
- 2.Re3#
- 2.Re4#
- 2.Rxb5#
- 2.Rec5#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re7#
- 2.Re8#
- 1...Bxd3
- 2.Se6#
- 2.Rc4#
- 2.Re3#
- 2.Re7#
- 2.Re8#
- 2.Qxd3#
- 1...Ba6
- 2.Se6#
- 2.Re3#
- 2.Re4#
- 2.Rb5#
- 2.Rec5#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re7#
- 2.Re8#
- 1...Ba4
- 2.Se6#
- 2.Rc4#
- 2.Re3#
- 2.Re4#
- 2.Rb5#
- 2.Rec5#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re7#
- 2.Re8#
- 1...Bc4
- 2.Rxc4#
- 2.Rb5#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 1...Bc6
- 2.Se6#
- 2.Rc4#
- 2.Re3#
- 2.Re4#
- 2.Rb5#
- 2.Rec5#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re7#
- 2.Re8#
- 1...Bd7
- 2.Rc4#
- 2.Re3#
- 2.Re4#
- 2.Rb5#
- 2.Rec5#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re7#
- 2.Re8#
- 1...Be8
- 2.Se6#
- 2.Rc4#
- 2.Re3#
- 2.Re4#
- 2.Rb5#
- 2.Rec5#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re7#
- 2.Rxe8#
- 1...Be3
- 2.Se6#
- 2.Rxe3#
- 2.Re4#
- 2.Rxb5#
- 2.Rec5#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re7#
- 2.Re8#
- 1...Bf4
- 2.Se6#
- 2.Re4#
- 2.Rd5#
- 1...Bg5
- 2.Se6#
- 2.Re4#
- 2.Rd5#
- 2.Rxg5#
- 1...Bg7
- 2.Se6#
- 2.Re4#
- 2.Rd5#
- 2.e3#
- 1...Sf4
- 2.Re3#
- 2.Re4#
- 2.Rxb5#
- 2.Rec5#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re7#
- 2.Re8#
- 2.Qg1#
- 2.e3#
- 1...Sg5
- 2.Re3#
- 2.Re4#
- 2.Rxb5#
- 2.Rec5#
- 2.Rd5#
- 2.Rf5#
- 2.Rxg5#
- 2.Re7#
- 2.Re8#
- 2.Qg1#
- 2.e3#
- 1...d5
- 2.Se6#
- 2.Re3#
- 2.Re4#
- 2.Rxd5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...dxe5!
- threat
- 1.Rg5?
- threat
- 2.e3#
- 1...Bxd3
- 2.Rc4#
- 2.Qxd3#
- 1...Bc4
- 2.Rxc4#
- 1...Bxg5!
- threat
- 1.Qd2?
- threat
- 2.Qc3#
- 1...Bxd3
- 2.Rc4#
- 2.Qxd3#
- 1...Bc4
- 2.Rxc4#
- 1...Bxd2!
- threat
- 1.Sc6+?
- Keys
- 1.Rc5!
- threat
- 2.Se6#
- 1...Kxc5+
- 2.d4#
- 1...Qxf6
- 2.Rfd5#
- 1...Bxd3
- 2.Rc4#
- 1...dxc5
- 2.Bxe5#
- 1...Bc4
- 2.Rxc4#
- 1...Bd7
- 2.Rc4#
- 1...Sf4
- 2.Qg1#
- 1...Sg5
- 2.Qg1#
- threat
- 1.Rc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 5
- Sets
- Q(d);N_SPINQ(d),OGATE,XB(J)::R1(I)
- B(c);N_GUARD::R1(C)
- B(c);N_GUARD::R1(C),XB(c)
- B(f);N_GUARD::P(D)
- Tries
- Try
- S(L);CHECK
- Vars
- B(c);XS(L)::R1(C)
- Refutation
- P(g);XS(L)
- Try
- R(I);CHECK
- Refutation
- B(f);XR(I)
- Try
- R(I);XQ(d)
- Threat
- DUALS(11)
- Refutation
- P(e);P_SPINP(e),XR(I)
- Try
- R(I);
- Threat
- P(D)
- Vars
- B(c);N_GUARD::R1(C),XB(c)
- Refutation
- B(f);XR(I)
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- B(c);N_GUARD::R1(C),XB(c)
- Refutation
- B(f);XQ(B)
- Try
- Actual
- R(C);
- Threat
- S(L)
- Vars
- K(b);CHECK,OGATE,S_FLIGHT,XR(C)::P(G)
- Q(d);N_SPINQ(d),OGATE,XB(J)::R1(I)
- B(c);N_GUARD,P_SPINB(c),XP(G)::R1(C)
- P(e);N_GUARD,SBLOCK,XR(C)::B(J),XQ(d)
- B(c);N_GUARD::R1(C),XB(c)
- B(c);N_GUARD::R1(C)
- S(a);N_GUARD,S_CUTB(f)::QAB(B)
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