MESON Chess Problem Database
Problem Display
PID: 11755 (2N2b1K/1P4p1/8/Nrkn1P2/2Pp4/P1P2R2/4B1QB/q7 w - - 0 1)
Petkov, Petko Andonov
4th Prize, Schach-Echo, 1971
#2
12 + 7
| 3840 | Petkov Selected Compositions | 2000 |
SOLUTION
- SOUND
- Sets
- 1...Bd6
- 2.Bxd6#
- 1...Se7
- 2.Bd6#
- 1...Bd6
- Tries
- 1.Rf2?
- threat
- 2.Qxd5#
- 1...Sxc3
- 2.Qc6#
- 1...Se3
- 2.Qc6#
- 1...Sb4
- 2.Sb3#
- 1...Sf4
- 2.Qc6#
- 1...Sb6
- 2.Qc6#
- 1...Sf6
- 2.Qc6#
- 1...Sc7
- 2.Qc6#
- 1...Se7
- 2.Bd6#
- 1...Qh1!
- threat
- 1.Rd3?
- threat
- 2.Qxd5#
- 1...Sxc3
- 2.Qc6#
- 1...Qh1
- 2.cxd4#
- 1...Se3
- 2.Qc6#
- 1...Sf4
- 2.Qc6#
- 1...Sb6
- 2.Qc6#
- 1...Sf6
- 2.Qc6#
- 1...Sc7
- 2.Qc6#
- 1...Se7
- 2.Bd6#
- 1...Sb4!
- threat
- 1.Re3?
- threat
- 2.Qxd5#
- 1...Sxc3
- 2.Qc6#
- 1...Sxe3
- 2.Qc6#
- 1...Sb4
- 2.Sb3#
- 1...Sf4
- 2.Qc6#
- 1...Sb6
- 2.Qc6#
- 1...Sf6
- 2.Qc6#
- 1...Sc7
- 2.Qc6#
- 1...Se7
- 2.Bd6#
- 1...Qh1!
- threat
- 1.Rh3?
- threat
- 2.Qxd5#
- 1...Sxc3
- 2.Qc6#
- 1...Se3
- 2.Qc6#
- 1...Sb4
- 2.Sb3#
- 1...Sf4
- 2.Qc6#
- 1...Sb6
- 2.Qc6#
- 1...Sf6
- 2.Qc6#
- 1...Sc7
- 2.Qc6#
- 1...Se7
- 2.Bd6#
- 1...Qh1!
- threat
- 1.Rf4?
- threat
- 2.Qxd5#
- 1...Sxc3
- 2.Qc6#
- 1...Sxf4
- 2.Qc6#
- 1...Qh1
- 2.cxd4#
- 1...Se3
- 2.Qc6#
- 1...Sb4
- 2.Sb3#
- 1...Sb6
- 2.Qc6#
- 1...Sf6
- 2.Qc6#
- 1...Sc7
- 2.Qc6#
- 1...Se7!
- threat
- 1.Rf2?
- Keys
- 1.Rf1!
- threat
- 2.Qxd5#
- 1...Sxc3
- 2.Qc6#
- 1...Se3
- 2.Qc6#
- 1...Sb4
- 2.Sb3#
- 1...Sf4
- 2.Qc6#
- 1...Sb6
- 2.Qc6#
- 1...Sf6
- 2.Qc6#
- 1...Sc7
- 2.Qc6#
- 1...Se7
- 2.Bd6#
- threat
- 1.Rf1!
This is a version of 176391
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- B(g);N_GUARD::B(C),XB(g)
- S(e);S_CUTB(g)::B(C)
- Tries
- Try
- R(F);
- Threat
- QAR1(B),XS(e)
- Vars
- S(e);OGATE,XP(E)::QAR1(B)
- S(e);OGATE::QAR1(B)
- S(e);S_CUTR(c)::S(H)
- S(e);S_CUTB(g)::B(C)
- Refutation
- Q(a);P_PINB(C)
- Try
- R(F);
- Threat
- QAR1(B),XS(e)
- Vars
- S(e);OGATE,XP(E)::QAR1(B)
- Q(a);N_GUARD,P_PINB(C)::P(E),XP(b)
- S(e);OGATE::QAR1(B)
- S(e);S_CUTB(g)::B(C)
- Refutation
- S(e);
- Try
- R(F);
- Threat
- QAR1(B),XS(e)
- Vars
- S(e);OGATE,XP(E)::QAR1(B)
- S(e);OGATE,XR(F)::QAR1(B)
- S(e);S_CUTR(c)::S(H)
- S(e);OGATE::QAR1(B)
- S(e);S_CUTB(g)::B(C)
- Refutation
- Q(a);P_PINB(C)
- Try
- R(F);
- Threat
- QAR1(B),XS(e)
- Vars
- S(e);OGATE,XP(E)::QAR1(B)
- S(e);OGATE::QAR1(B)
- S(e);S_CUTR(c)::S(H)
- S(e);S_CUTB(g)::B(C)
- Refutation
- Q(a);
- Try
- R(F);
- Threat
- QAR1(B),XS(e)
- Vars
- S(e);OGATE,XP(E)::QAR1(B)
- S(e);OGATE,XR(F)::QAR1(B)
- Q(a);N_GUARD,P_PINB(C)::P(E),XP(b)
- S(e);OGATE::QAR1(B)
- S(e);S_CUTR(c)::S(H)
- Refutation
- S(e);
- Try
- Actual
- R(F);
- Threat
- QAR1(B),XS(e)
- Vars
- S(e);OGATE,XP(E)::QAR1(B)
- S(e);OGATE::QAR1(B)
- S(e);S_CUTR(c)::S(H)
- S(e);S_CUTB(g)::B(C)
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