MESON Chess Problem Database
Problem Display
PID: 60622 (N2N2B1/3p4/p4P2/Bpp3Kp/1p1kp1nR/2R3Q1/2P3P1/8 w - - 0 1)
Shedey, Sergey Oleksandrovich
2nd HM., Shakhmaty v SSSR, 1970
#2
11 + 9
| 3751 | FIDE Album (1968-1970) | 1977 |
SOLUTION
- SOUND
- Sets
- 1...Sh2
- 2.Rd3#
- 1...Se3
- 2.Rd3#
- 1...Se5
- 2.Qe3#
- 1...Sxf6
- 2.Rd3#
- 1...Sh6
- 2.Rd3#
- 1...bxc3
- 2.Bxc3#
- 2.Qxc3#
- 1...b3
- 2.Qd6#
- 1...e3
- 2.Qxe3#
- 1...c4
- 2.Bb6#
- 1...d5
- 2.Sc6#
- 2.Se6#
- 1...d6
- 2.Sc6#
- 1...Sh2
- Tries
- 1.Kf4?
- 1...Sxf6
- 2.Qe3#
- 1...bxc3
- 2.Bxc3#
- 2.Qxc3#
- 1...Se3
- 2.Qxe3#
- 1...e3
- 2.Rd3#
- 1...c4
- 2.Bb6#
- 1...Sf2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se5
- 2.Qe3#
- 1...Sh6
- 2.Qe3#
- 1...d5
- 2.Sc6#
- 2.Se6#
- 1...d6
- 2.Sc6#
- 1...b3!
- 1...Sxf6
- 1.Kf5?
- 1...Se3+
- 2.Qxe3#
- 1...Sxf6
- 2.Rd3#
- 2.Qe5#
- 2.Qd3#
- 2.Qe3#
- 1...bxc3
- 2.Bxc3#
- 2.Qxc3#
- 1...e3
- 2.Rd3#
- 2.Qe5#
- 2.Qxe3#
- 1...c4
- 2.Bb6#
- 1...Sf2
- 2.Qe5#
- 2.Qe3#
- 1...Sh2
- 2.Rd3#
- 2.Rxe4#
- 2.Qe5#
- 2.Qd3#
- 2.Qe3#
- 1...Se5
- 2.Rxe4#
- 2.Qxe5#
- 2.Qe3#
- 1...b3
- 2.Qd6#
- 1...d5
- 2.Sc6#
- 2.Se6#
- 1...d6
- 2.Sc6#
- 1...Sh6+!
- 1...Se3+
- 1.Sc7?
- 1...Sxf6
- 2.Rd3#
- 1...bxc3
- 2.Bxc3#
- 2.Qxc3#
- 1...Se3
- 2.Rd3#
- 1...e3
- 2.Qxe3#
- 1...c4
- 2.Bb6#
- 1...Sh2
- 2.Rd3#
- 1...Se5
- 2.Qe3#
- 1...Sh6
- 2.Rd3#
- 1...b3
- 2.Qd6#
- 1...d5
- 2.Sce6#
- 2.Sc6#
- 2.Sde6#
- 1...d6
- 2.Sc6#
- 2.Sde6#
- 1...Sf2!
- 1...Sxf6
- 1.Se6+?
- 1...Kd5
- 2.Rxc5#
- 1...dxe6!
- 1...Kd5
- 1.Bxb4?
- threat
- 2.Bxc5#
- 2.Qd6#
- 1...Sxf6
- 2.Bxc5#
- 2.Rd3#
- 1...e3
- 2.Qf4#
- 2.Qxe3#
- 1...Se3
- 2.Rd3#
- 1...Se5
- 2.Bxc5#
- 2.Qf2#
- 2.Qe3#
- 1...c4
- 2.Qd6#
- 1...d5
- 2.Sc6#
- 2.Se6#
- 2.Bxc5#
- 1...d6
- 2.Sc6#
- 2.Qxd6#
- 1...cxb4!
- threat
- 1.Bb6?
- threat
- 2.Bxc5#
- 1...Se3
- 2.Rd3#
- 1...e3
- 2.Qxe3#
- 1...d6
- 2.Sc6#
- 1...bxc3!
- threat
- 1.Bf7?
- 1...Sxf6
- 2.Rd3#
- 1...bxc3
- 2.Bxc3#
- 2.Qxc3#
- 1...Se3
- 2.Rd3#
- 1...e3
- 2.Qxe3#
- 1...c4
- 2.Bb6#
- 1...Sh2
- 2.Rd3#
- 1...Se5
- 2.Qe3#
- 1...Sh6
- 2.Rd3#
- 1...b3
- 2.Qd6#
- 1...d5
- 2.Sc6#
- 2.Se6#
- 1...d6
- 2.Sc6#
- 1...Sf2!
- 1...Sxf6
- 1.Ra3?
- threat
- 2.Qd6#
- 1...Sxf6
- 2.Rd3#
- 1...bxa3
- 2.Bc3#
- 2.Qc3#
- 2.c3#
- 1...e3
- 2.Qf4#
- 2.Qxe3#
- 1...Se3
- 2.Rd3#
- 1...Se5
- 2.Qf2#
- 2.Qe3#
- 1...b3
- 2.Bc3#
- 2.Qc3#
- 2.c3#
- 1...d6
- 2.Sc6#
- 2.Qxd6#
- 1...d5!
- threat
- 1.Rb3?
- threat
- 2.Qd6#
- 1...Sxf6
- 2.Rd3#
- 1...e3
- 2.Qf4#
- 2.Qxe3#
- 1...Se3
- 2.Rd3#
- 1...Se5
- 2.Qf2#
- 2.Qe3#
- 1...d6
- 2.Sc6#
- 2.Qxd6#
- 1...d5!
- threat
- 1.Rxg4?
- threat
- 2.Rd3#
- 1...bxc3
- 2.Bxc3#
- 2.Qxc3#
- 1...c4
- 2.Bb6#
- 1...d5
- 2.Sc6#
- 2.Se6#
- 1...hxg4!
- threat
- 1.Qd3+?
- 1...Ke5
- 2.Qd5#
- 1...exd3!
- 1...Ke5
- 1.Kf4?
- Keys
- 1.Rxc5!
- 1...Kxc5
- 2.Bb6#
- 1...Sxf6
- 2.Qf2#
- 1...e3
- 2.Qe5#
- 1...Sf2
- 2.Qxf2#
- 1...Sh2
- 2.Qf2#
- 1...Se3
- 2.Qe5#
- 1...Se5
- 2.Qf2#
- 1...Sh6
- 2.Qf2#
- 1...b3
- 2.Qc3#
- 1...d5
- 2.Se6#
- 1...d6
- 2.Se6#
- 1...Kxc5
- 1.Rxc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- S(d);P_SPINP(c)::R1(C)
- S(d);N_GUARD,P_SPINP(c),SBLOCK::QAB1(D)
- S(d);P_SPINP(c),XP(H)::R1(C)
- P(a);::QAR2(D)
- P(c);P_SPINS(d)::QAB1(D),XP(c)
- P(f);OGATEB::B(F)
- P(i);N_GUARD::S(J)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- S(d);N_GUARD,XP(H)::QAB1(D)
- S(d);N_GUARD::QAB1(D),XS(d)
- P(c);N_GUARD::R1(C)
- P(f);OGATEB::B(F)
- S(d);N_GUARD::QAB1(D)
- P(i);N_GUARD::S(J)
- Refutation
- P(a);
- Try
- K(G);P-FLIGHT
- Vars
- S(d);CHECK,N_GUARD,P_SPINP(c)::QAB1(D),XS(d)
- P(f);OGATEB::B(F)
- P(a);::QAR2(D)
- P(i);N_GUARD::S(J)
- Refutation
- S(d);CHECK,P_SPINP(c)
- Try
- S(I);
- Vars
- S(d);P_SPINP(c),XP(H)::R1(C)
- S(d);P_SPINP(c)::R1(C)
- P(c);P_SPINS(d)::QAB1(D),XP(c)
- P(f);OGATEB::B(F)
- S(d);N_GUARD,P_SPINP(c),SBLOCK::QAB1(D)
- P(a);::QAR2(D)
- Refutation
- S(d);P_SPINP(c)
- Try
- S(J);CHECK
- Vars
- K(b);P-FLIGHT::R1(C),XP(f)
- Refutation
- P(i);XS(J)
- Try
- B(F);XP(a)
- Threat
- DUALS(2)
- Vars
- S(d);P_SPINP(c)::R1(C)
- P(f);::QAR2(D)
- Refutation
- P(f);XB(F)
- Try
- B(F);P_PINP(f)
- Threat
- B(F),XP(f)
- Vars
- S(d);N_SPINP(f),P_SPINP(c)::R1(C)
- P(c);P_SPINS(d)::QAB1(D),XP(c)
- P(i);N_GUARD::S(J)
- Refutation
- P(a);XR(C)
- Try
- B(K);
- Vars
- S(d);P_SPINP(c),XP(H)::R1(C)
- S(d);P_SPINP(c)::R1(C)
- P(c);P_SPINS(d)::QAB1(D),XP(c)
- P(f);OGATEB::B(F)
- S(d);N_GUARD,P_SPINP(c),SBLOCK::QAB1(D)
- P(a);::QAR2(D)
- P(i);N_GUARD::S(J)
- Refutation
- S(d);P_SPINP(c)
- Try
- R(C);
- Threat
- QAR2(D)
- Vars
- S(d);P_SPINP(c),XP(H)::R1(C)
- S(d);P_SPINP(c)::R1(C)
- Refutation
- P(i);
- Try
- R(C);
- Threat
- QAR2(D)
- Vars
- S(d);P_SPINP(c),XP(H)::R1(C)
- S(d);P_SPINP(c)::R1(C)
- Refutation
- P(i);
- Try
- R(E);P_PINP(c),XS(d)
- Threat
- R1(C)
- Vars
- P(f);OGATEB::B(F)
- Refutation
- P(g);N_SPINP(c),XR(E)
- Try
- Q(D);CHECK
- Vars
- K(b);OGATE,S_FLIGHT::QAR1(D)
- Refutation
- P(c);P_SPINS(d),XQ(D)
- Try
- Actual
- R(C);XP(f)
- Vars
- K(b);OGATEB,S_FLIGHT,XR(C)::B(F)
- S(d);N_GUARD,P_SPINP(c),XP(H)::QAB(D)
- P(c);P_SPINS(d)::QAB1(D)
- S(d);N_GUARD,P_SPINP(c)::QAB(D),XS(d)
- S(d);N_GUARD,P_SPINP(c)::QAB(D)
- S(d);N_GUARD,P_SPINP(c),SBLOCK::QAB1(D)
- P(a);N_GUARD::QAB1(D)
- P(i);N_GUARD::S(J)
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