MESON Chess Problem Database
Problem Display
PID: 187191 (2b2Q2/p4p1r/4p1R1/3Nk1n1/R5P1/3p4/3r4/1KB4B w - - 0 1)
Keller, Michael
Comm., Schach-Aktiv, 2012
#2
8 + 9
| 15511 | harmonie-aktiv | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Bf4#
- 1...Rb2+
- 2.Bxb2#
- 1...Rc2
- 2.Bf4#
- 1...Re2
- 2.Bf4#
- 1...Rdh2
- 2.Bf4#
- 1...Ba6
- 2.Qb8#
- 1...Bb7
- 2.Qb8#
- 1...Bd7
- 2.Qb8#
- 1...exd5
- 2.Qd6#
- 1...fxg6
- 2.Qf4#
- 1...Ra2
- Tries
- 1.Sc3?
- threat
- 2.Qc5#
- 1...fxg6
- 2.Qf4#
- 1...Se4
- 2.Rxe4#
- 1...Bb7
- 2.Qb8#
- 1...Rb2+!
- threat
- 1.Se3?
- threat
- 2.Qc5#
- 1...Rb2+
- 2.Bxb2#
- 1...fxg6
- 2.Qf4#
- 1...Se4
- 2.Rxe4#
- 1...Bb7
- 2.Qb8#
- 1...Rc2!
- threat
- 1.Sb6?
- threat
- 2.Qc5#
- 1...Rb2+
- 2.Bxb2#
- 1...fxg6
- 2.Qf4#
- 1...Se4
- 2.Rxe4#
- 1...Rc2
- 2.Bf4#
- 1...Bb7
- 2.Sd7#
- 2.Qb8#
- 1...axb6!
- threat
- 1.Sf6?
- threat
- 2.Qc5#
- 1...Rb2+
- 2.Bxb2#
- 1...Se4
- 2.Rxe4#
- 1...Rc2
- 2.Bf4#
- 1...Bb7
- 2.Sd7#
- 2.Qb8#
- 1...fxg6!
- threat
- 1.Sc7?
- threat
- 2.Qc5#
- 1...Rb2+
- 2.Bxb2#
- 1...fxg6
- 2.Qf4#
- 1...Se4
- 2.Rxe4#
- 1...Rc2
- 2.Bf4#
- 1...Bb7!
- threat
- 1.Rxe6+?
- 1...Kxe6
- 2.Qe7#
- 1...Bxe6
- 2.Qb8#
- 1...fxe6
- 2.Qf4#
- 1...Sxe6!
- 1...Kxe6
- 1.Qc5?
- threat
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qc7#
- 1...Rb2+
- 2.Bxb2#
- 1...Rxh1
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...exd5
- 2.Qd4#
- 2.Qd6#
- 2.Qxd5#
- 2.Qc7#
- 1...Rc2
- 2.Sc3#
- 2.Bf4#
- 1...Rg2
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Bf4#
- 1...Bb7
- 2.Qc7#
- 1...Sf3
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Se4
- 2.Rxe4#
- 1...f5
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...f6
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sb6#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 1...fxg6!
- threat
- 1.Sc3?
- Keys
- 1.Sf4!
- threat
- 2.Qc5#
- 1...Rb2+
- 2.Bxb2#
- 1...fxg6
- 2.Sxg6#
- 1...Se4
- 2.Rxe4#
- 1...Rc2
- 2.Sxd3#
- 1...Bb7
- 2.Qb8#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(a);OGATE::B(B)
- R(a);CHECK,N_GUARD::B(B),XR(a)
- B(i);OGATE::QAB(H)
- P(e);XS(F)::QAB1(H)
- P(g);OGATE,XR(G)::QAB1(H)
- Tries
- Try
- S(F);
- Threat
- QAR2(H)
- Vars
- P(g);OGATE,XR(G)::QAB1(H)
- S(d);N_GUARD::R1(D),XS(d)
- B(i);OGATE::QAB(H)
- Refutation
- R(a);CHECK
- Try
- S(F);
- Threat
- QAR2(H)
- Vars
- R(a);CHECK,N_GUARD::B(B),XR(a)
- P(g);OGATE,XR(G)::QAB1(H)
- S(d);N_GUARD::R1(D),XS(d)
- B(i);OGATE::QAB(H)
- Refutation
- R(a);
- Try
- S(F);
- Threat
- QAR2(H)
- Vars
- R(a);CHECK,N_GUARD::B(B),XR(a)
- P(g);OGATE,XR(G)::QAB1(H)
- S(d);N_GUARD::R1(D),XS(d)
- R(a);OGATE::B(B)
- Refutation
- P(f);XS(F)
- Try
- S(F);
- Threat
- QAR2(H)
- Vars
- R(a);CHECK,N_GUARD::B(B),XR(a)
- S(d);N_GUARD::R1(D),XS(d)
- R(a);OGATE::B(B)
- Refutation
- P(g);XR(G)
- Try
- S(F);
- Threat
- QAR2(H)
- Vars
- R(a);CHECK,N_GUARD::B(B),XR(a)
- P(g);OGATE,XR(G)::QAB1(H)
- S(d);N_GUARD::R1(D),XS(d)
- R(a);OGATE::B(B)
- Refutation
- B(i);
- Try
- R(G);CHECK,XP(e)
- Vars
- K(c);P-FLIGHT,XR(G)::QAR1(H)
- B(i);OGATE,SBLOCK,XR(G)::QAB(H)
- P(g);OGATE,SBLOCK,XR(G)::QAB1(H)
- Refutation
- S(d);XR(G)
- Try
- Q(H);
- Threat
- DUALS(8)
- Vars
- R(a);CHECK,N_GUARD::B(B),XR(a)
- B(i);::QAB(H)
- S(d);N_GUARD::R1(D),XS(d)
- Refutation
- P(g);XR(G)
- Try
- Actual
- S(F);
- Threat
- QAR2(H)
- Vars
- R(a);CHECK,N_GUARD::B(B),XR(a)
- P(g);XR(G)::S(F),XP(g)
- S(d);N_GUARD::R1(D),XS(d)
- R(a);N_GUARD::S(F),XP(b)
- B(i);OGATE::QAB(H)
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