MESON Chess Problem Database
Problem Display
PID: 118886 (1r6/p2pR3/Qn1N1Rp1/1PpkN1P1/3p1K1n/8/4B1p1/8 w - - 0 1)
Udartsev, Valentin Filipovich
Sverdlovsk-250 JT, 1971
#2
9 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb7
- 2.Qxb7#
- 1...Ra8
- 2.Qb7#
- 1...Rd8
- 2.Qb7#
- 1...Re8
- 2.Qb7#
- 1...Rf8
- 2.Qb7#
- 1...Rg8
- 2.Qb7#
- 1...Rh8
- 2.Qb7#
- 1...Sf3
- 2.Bxf3#
- 1...Sf5
- 2.Bf3#
- 1...Sa4
- 2.Bc4#
- 1...Sc4
- 2.Bxc4#
- 1...Sa8
- 2.Bc4#
- 1...Sc8
- 2.Bc4#
- 1...Rb7
- Tries
- 1.Sd3?
- threat
- 2.Re5#
- 1...Re8
- 2.Qb7#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4!
- threat
- 1.Sec4?
- threat
- 2.Re5#
- 1...Sxc4
- 2.Bxc4#
- 1...Re8
- 2.Qb7#
- 1...Sf3
- 2.Bxf3#
- 1...d3!
- threat
- 1.Sg4?
- threat
- 2.Re5#
- 1...Re8
- 2.Qb7#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bxc4#
- 1...d3!
- threat
- 1.Sc6?
- threat
- 2.Re5#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bxc4#
- 1...Re8!
- threat
- 1.Sxd7?
- threat
- 2.Re5#
- 1...Sxd7
- 2.Bc4#
- 2.Qc6#
- 1...Re8
- 2.Qb7#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bxc4#
- 2.Qc6#
- 1...d3!
- threat
- 1.Sef7?
- threat
- 2.Re5#
- 1...Re8
- 2.Qb7#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bxc4#
- 1...d3!
- threat
- 1.Sdc4?
- threat
- 2.Rd6#
- 1...Sxc4
- 2.Bxc4#
- 1...Rf8
- 2.Qb7#
- 1...Sf5
- 2.Bf3#
- 1...d6
- 2.Rxd6#
- 1...Sc8!
- threat
- 1.Se4?
- threat
- 2.Rd6#
- 1...Rf8
- 2.Qb7#
- 1...Sc4
- 2.Bxc4#
- 1...Sc8
- 2.Bc4#
- 1...d6
- 2.Rxd6#
- 1...Sf5!
- threat
- 1.Sb7?
- threat
- 2.Rd6#
- 1...Rxb7
- 2.Qxb7#
- 1...Sf5
- 2.Bf3#
- 1...Sc4
- 2.Bxc4#
- 1...Sc8
- 2.Bc4#
- 1...d6
- 2.Rxd6#
- 1...Rf8!
- threat
- 1.Sdf7?
- threat
- 2.Rd6#
- 1...Sf5
- 2.Bf3#
- 1...Sc4
- 2.Bxc4#
- 1...Sc8
- 2.Bc4#
- 1...d6
- 2.Rxd6#
- 1...c4!
- threat
- 1.Se8?
- threat
- 2.Sc7#
- 2.Rd6#
- 1...Rxe8
- 2.Qb7#
- 1...d3
- 2.Rd6#
- 1...Rb7
- 2.Rd6#
- 2.Qxb7#
- 1...Rc8
- 2.Rd6#
- 1...Sf5
- 2.Sc7#
- 2.Bf3#
- 1...Sc4
- 2.Sc7#
- 2.Bxc4#
- 1...Sa8
- 2.Bc4#
- 2.Rd6#
- 2.Rxd7#
- 2.Qd6#
- 1...Sc8
- 2.Sc7#
- 2.Bc4#
- 1...d6
- 2.Sc7#
- 2.Rxd6#
- 1...c4!
- threat
- 1.Qa2+?
- 1...Sc4
- 2.Bxc4#
- 2.Qxc4#
- 1...c4!
- 1...Sc4
- 1.Qxb6?
- threat
- 2.Bc4#
- 1...c4
- 2.Bxc4#
- 1...d3!
- threat
- 1.Sd3?
- Keys
- 1.Sf3!
- threat
- 2.Re5#
- 1...Sxf3
- 2.Bxf3#
- 1...Re8
- 2.Qb7#
- 1...Sc4
- 2.Bxc4#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- R(j);N_GUARD::QAB(F),XR(j)
- R(j);N_GUARD::QAB(F)
- R(j);N_GUARD,P_PINR(H)::QAB(F)
- S(c);N_GUARD::B(A),XS(c)
- S(c);N_GUARD::B(A)
- S(f);N_GUARD::B(A)
- S(f);N_GUARD::B(A),XS(f)
- Tries
- Try
- S(D);
- Threat
- R1(I)
- Vars
- R(j);N_GUARD::QAB(F)
- S(c);N_GUARD::B(A),XS(c)
- Refutation
- S(f);
- Try
- S(D);
- Threat
- R1(I)
- Vars
- S(f);OGATE,XS(D)::B(A),XS(f)
- R(j);N_GUARD::QAB(F)
- S(c);N_GUARD::B(A),XS(c)
- Refutation
- P(b);
- Try
- S(D);
- Threat
- R1(I)
- Vars
- R(j);N_GUARD::QAB(F)
- S(c);N_GUARD::B(A),XS(c)
- S(f);N_GUARD::B(A),XS(f)
- Refutation
- P(b);
- Try
- S(D);
- Threat
- R1(I)
- Vars
- S(c);N_GUARD::B(A),XS(c)
- S(f);N_GUARD::B(A),XS(f)
- Refutation
- R(j);
- Try
- S(D);XP(i)
- Threat
- R1(I)
- Vars
- R(j);N_GUARD::QAB(F)
- S(c);N_GUARD::B(A),XS(c)
- Refutation
- P(b);
- Try
- S(D);
- Threat
- R1(I)
- Vars
- R(j);N_GUARD::QAB(F)
- S(c);N_GUARD::B(A),XS(c)
- S(f);N_GUARD::B(A),XS(f)
- Refutation
- P(b);
- Try
- S(G);
- Threat
- R1(H)
- Vars
- S(f);OGATE,XS(G)::B(A),XS(f)
- R(j);N_GUARD,P_PINR(H)::QAB(F)
- S(c);N_GUARD::B(A)
- P(i);::R1(H),XP(i)
- Refutation
- S(f);
- Try
- S(G);
- Threat
- R1(H)
- Vars
- R(j);N_GUARD,P_PINR(H)::QAB(F)
- S(f);N_GUARD::B(A),XS(f)
- S(f);N_GUARD::B(A)
- P(i);::R1(H),XP(i)
- Refutation
- S(c);
- Try
- S(G);
- Threat
- R1(H)
- Vars
- R(j);OGATE,XS(G)::QAB(F),XR(j)
- S(c);N_GUARD::B(A)
- S(f);N_GUARD::B(A),XS(f)
- S(f);N_GUARD::B(A)
- P(i);::R1(H),XP(i)
- Refutation
- R(j);P_PINR(H)
- Try
- S(G);
- Threat
- R1(H)
- Vars
- S(c);N_GUARD::B(A)
- S(f);N_GUARD::B(A),XS(f)
- S(f);N_GUARD::B(A)
- P(i);::R1(H),XP(i)
- Refutation
- P(d);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(j);N_GUARD,XS(G)::QAB(F)
- P(b);::R1(H)
- R(j);::R1(H)
- Refutation
- P(d);
- Try
- Q(F);CHECK
- Refutation
- P(d);P_SPINP(d)
- Try
- Q(F);XS(f)
- Threat
- B(A)
- Vars
- P(d);::B(A),XP(d)
- Refutation
- P(b);
- Try
- Actual
- S(D);
- Threat
- R1(I)
- Vars
- S(c);OGATE,XS(D)::B(A),XS(c)
- R(j);N_GUARD::QAB(F)
- S(f);N_GUARD::B(A),XS(f)
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