MESON Chess Problem Database
Problem Display
PID: 160254 (6R1/8/B2Kn3/3n1k2/R3rNpB/3prPP1/1QN1b2b/8 w - - 0 1)
Sydenham, Colin Peter
Die Schwalbe, 1992
#2
10 + 9
| 15527 | schachkunst (1997-2010) (Hoffmann) | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.fxg4#
- 1...Sb4
- 2.Qf6#
- 1...Sdxf4
- 2.Qf6#
- 1...Sb6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sdc7
- 2.Qf6#
- 1...Se7
- 2.Qf6#
- 1...Sexf4
- 2.Rg5#
- 1...Sc5
- 2.Rg5#
- 1...Sg5
- 2.Rxg5#
- 1...Sec7
- 2.Rg5#
- 1...Sd8
- 2.Rg5#
- 1...Sf8
- 2.Rg5#
- 1...Bf1
- Tries
- 1.Sxe3+?
- 1...Sxe3
- 2.Qf6#
- 2.fxe4#
- 1...Rxe3!
- 1...Sxe3
- 1.Sxd5?
- threat
- 2.Se7#
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...Rd4
- 2.Sxe3#
- 1...Re5
- 2.Se7#
- 1...Sd4
- 2.Rg5#
- 1...Sf4
- 2.Rg5#
- 2.Qf6#
- 1...Sc5
- 2.Rg5#
- 2.Qf6#
- 1...Sg5
- 2.Rxg5#
- 2.Qf6#
- 1...Sc7
- 2.Rg5#
- 2.Qf6#
- 1...Sd8
- 2.Rg5#
- 2.Qf6#
- 1...Sf8
- 2.Rg5#
- 2.Qf6#
- 1...Bxg3+!
- threat
- 1.Bc8?
- threat
- 2.Rg5#
- 1...Rd4
- 2.Sxd4#
- 1...Re5
- 2.Sd4#
- 1...Sc3
- 2.Rf8#
- 1...Bxg3!
- threat
- 1.Rxe4?
- threat
- 2.Qe5#
- 1...Sc3
- 2.Sxe3#
- 1...Sd4
- 2.Sxd4#
- 1...Rxe4!
- threat
- 1.Ra5?
- threat
- 2.Qf6#
- 1...Rd4
- 2.Sxe3#
- 1...Sd4
- 2.Rf8#
- 1...Sc5
- 2.Rg5#
- 1...Sg5
- 2.Rxg5#
- 1...Re5!
- threat
- 1.Rf8+?
- 1...Sf6
- 2.Rxf6#
- 2.Qxf6#
- 1...Sxf8!
- 1...Sf6
- 1.Qg7?
- threat
- 2.Qxg4#
- 2.Qg6#
- 2.Qh7#
- 1...Rxf4
- 2.Qg6#
- 2.Qh7#
- 1...Bxf3
- 2.Qg6#
- 2.Qh7#
- 1...Bxg3
- 2.Qxg4#
- 1...Sdxf4
- 2.Qf6#
- 2.Qxg4#
- 2.Qf7#
- 1...Sexf4
- 2.Qxg4#
- 2.Qg5#
- 1...gxf3
- 2.Qg4#
- 2.Qg6#
- 2.Qh7#
- 1...Sf6
- 2.Qxf6#
- 2.Qg6#
- 1...Se7
- 2.Qf6#
- 2.Qxg4#
- 2.Qf7#
- 1...Sg5
- 2.Qxg5#
- 2.Qg6#
- 1...Sf8
- 2.Qxg4#
- 2.Qg5#
- 1...Sxg7!
- threat
- 1.Qh8?
- threat
- 2.Qh7#
- 1...Sdxf4
- 2.Qf6#
- 1...Sexf4
- 2.Rg5#
- 1...Sf6
- 2.Qxf6#
- 1...Se7
- 2.Qf6#
- 1...Sg5
- 2.Rxg5#
- 1...Sf8
- 2.Rg5#
- 2.Qh5#
- 1...Bxg3!
- threat
- 1.Sxe3+?
- Keys
- 1.Bxd3!
- threat
- 2.Qe5#
- 1...Rxd3
- 2.fxe4#
- 1...Bxd3
- 2.fxg4#
- 1...Sc3
- 2.Sxe3#
- 1...Sd4
- 2.Sxd4#
- threat
- 1.Bxd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 13
- Sets
- B(a);N_GUARD::P(C),XP(f)
- S(g);N_GUARD::QAR1(A)
- S(g);N_GUARD,XS(F)::QAR1(A)
- S(g);N_GUARD::QAR1(A),XS(g)
- S(i);N_GUARD,XS(F)::R1(J)
- S(i);N_GUARD::R1(J)
- S(i);N_GUARD::R1(J),XS(i)
- Tries
- Try
- S(B);CHECK,XR(d)
- Refutation
- R(e);XS(B)
- Try
- S(F);P_SPINP(D),XS(g)
- Threat
- DUALS(2)
- Vars
- S(i);::QAR1(A)
- R(e);N_GUARD,P_PINS(F)::S(B),XR(d)
- R(e);N_PINP(D)::S(F)
- S(i);N_GUARD::R1(J)
- Refutation
- B(b);CHECK,XP(D)
- Try
- B(H);P_PINS(i)
- Threat
- R1(J)
- Vars
- R(e);N_GUARD::S(B),XR(e)
- R(e);N_GUARD::S(B)
- S(g);N_GUARD::R(J)
- Refutation
- B(b);P_PINS(F),XP(D)
- Try
- R(E);XR(e)
- Threat
- QAR1(A)
- Vars
- S(g);N_GUARD::S(B),XR(d)
- S(i);N_GUARD::S(B),XS(i)
- Refutation
- R(d);XR(E)
- Try
- R(E);P_PINS(g)
- Threat
- QAR1(A)
- Vars
- R(e);N_GUARD::S(B),XR(d)
- S(i);N_GUARD::R(J)
- S(i);N_GUARD,N_SPINS(g)::R1(J)
- S(i);N_GUARD::R1(J),XS(i)
- Refutation
- R(e);N_SPINS(g)
- Try
- R(J);CHECK
- Refutation
- S(i);XR(J)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- B(b);P_PINS(F),XP(D)::QAB1(A),XP(f)
- Refutation
- S(i);XQ(A)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(g);N_GUARD,XS(F)::QAR1(A)
- S(i);N_GUARD,XS(F)::R1(J)
- S(g);N_GUARD::QAR1(A),XS(g)
- S(g);N_GUARD::QAR1(A)
- S(i);N_GUARD::R1(J),XS(i)
- Refutation
- B(b);P_PINS(F),XP(D)
- Try
- Actual
- B(H);P_PINR(e),XP(c)
- Threat
- QAR1(A)
- Vars
- R(d);N_GUARD,N_SPINR(e),XB(H)::P(C),XR(e)
- B(a);N_GUARD,N_SPINR(e),XB(H)::P(C),XP(f)
- S(g);N_GUARD::S(B),XR(d)
- S(i);N_GUARD::S(B),XS(i)
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