MESON Chess Problem Database
Problem Display
PID: 78342 (b1n4q/b6N/4pp2/4N3/2Qpk3/4P2B/4K3/8 w - - 0 1)
Morra, Juan Carlos
The Tablet, 1958
(First published on Sat Nov 8 1958)
#2
6 + 8
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Kxe5
- 2.Qxe6#
- 1...Bb8
- 2.Qxd4#
- 1...Sb6
- 2.Qxd4#
- 1...fxe5
- 2.Sg5#
- 1...Kxe5
- Tries
- 1.Sd3?
- threat
- 2.Qxe6#
- 1...Qe8
- 2.Sxf6#
- 1...Qg8
- 2.Sxf6#
- 1...Bb8
- 2.Qxd4#
- 1...e5
- 2.Sf2#
- 1...f5
- 2.Sg5#
- 2.Bg2#
- 1...Bd5!
- threat
- 1.Sc6?
- threat
- 2.Qxe6#
- 1...Qe8
- 2.Sxf6#
- 1...Qg8
- 2.Sxf6#
- 1...Bb8
- 2.Qxd4#
- 1...f5
- 2.Sg5#
- 2.Bg2#
- 1...e5!
- threat
- 1.Sg6?
- threat
- 2.Qxe6#
- 1...Qe8
- 2.Sxf6#
- 1...Qg8
- 2.Sxf6#
- 1...Bb8
- 2.Qxd4#
- 1...Bd5
- 2.Qd3#
- 1...f5
- 2.Sg5#
- 2.Bg2#
- 1...e5!
- threat
- 1.Sd7?
- threat
- 2.Qxe6#
- 1...Qe8
- 2.Shxf6#
- 1...Qg8
- 2.Shxf6#
- 1...Bb8
- 2.Qxd4#
- 1...Bd5
- 2.Qd3#
- 1...f5
- 2.Sg5#
- 2.Bg2#
- 1...e5!
- threat
- 1.Sf7?
- threat
- 2.Qxe6#
- 1...Qe8
- 2.Sxf6#
- 1...Bb8
- 2.Qxd4#
- 1...Bd5
- 2.Qd3#
- 1...f5
- 2.Shg5#
- 2.Bg2#
- 1...e5!
- threat
- 1.Sg5+?
- 1...Kxe5
- 2.Qxe6#
- 1...fxg5!
- 1...Kxe5
- 1.Sxf6+?
- 1...Kxe5
- 2.Qxe6#
- 1...Qxf6!
- 1...Kxe5
- 1.Qxe6?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Bg2#
- 2.Bf5#
- 1...d3+
- 2.Sxd3#
- 1...Qxh7
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Bg2#
- 1...fxe5
- 2.Sg5#
- 2.Bg2#
- 2.Bf5#
- 1...Qg7
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Bf5#
- 1...Qe8
- 2.Sxf6#
- 2.Bg2#
- 2.Bf5#
- 1...Qg8
- 2.Sf7#
- 2.Sxf6#
- 2.Bf5#
- 1...Bb8
- 2.Bg2#
- 2.Bf5#
- 1...Bd5
- 2.Bg2#
- 2.Bf5#
- 2.Qf5#
- 1...Bc6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sxc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Bg2#
- 2.Bf5#
- 1...Sd6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Bg2#
- 1...Se7
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Bg2#
- 1...f5
- 2.Sg5#
- 2.Bg2#
- 2.Bxf5#
- 1...dxe3!
- threat
- 1.Qc6+?
- 1...Kxe5
- 2.Qxe6#
- 1...Bxc6!
- 1...Kxe5
- 1.Sd3?
- Keys
- 1.Sf3!
- threat
- 2.Qxe6#
- 1...Qe8
- 2.Sxf6#
- 1...Qg8
- 2.Sxf6#
- 1...Bb8
- 2.Qxd4#
- 1...Bd5
- 2.Qd3#
- 1...e5
- 2.Sd2#
- 1...f5
- 2.Shg5#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- K(b);N_SPINP(a),OGATEB,P-FLIGHT,XS(E)::QAR1(D),XP(c)
- B(e);N_GUARD::QAR1(D),XP(a)
- S(g);S_CUTB(e)::QAR1(D),XP(a)
- P(d);N_GUARD,SBLOCK,XS(E)::S(F)
- Tries
- Try
- S(E);
- Threat
- QAR2(D),XP(c)
- Vars
- Q(h);N_GUARD::S(F),XP(d)
- B(e);N_GUARD::QAR1(D),XP(a)
- P(c);SBLOCK::S(E)
- Refutation
- B(f);
- Try
- S(E);
- Threat
- QAR2(D),XP(c)
- Vars
- Q(h);N_GUARD::S(F),XP(d)
- B(e);N_GUARD::QAR1(D),XP(a)
- Refutation
- P(c);
- Try
- S(E);
- Threat
- QAR2(D),XP(c)
- Vars
- Q(h);N_GUARD::S(F),XP(d)
- B(e);N_GUARD::QAR1(D),XP(a)
- B(f);SBLOCK::QAB1(D)
- Refutation
- P(c);
- Try
- S(E);
- Threat
- QAR2(D),XP(c)
- Vars
- Q(h);N_GUARD::S(F),XP(d)
- B(e);N_GUARD::QAR1(D),XP(a)
- B(f);SBLOCK::QAB1(D)
- Refutation
- P(c);
- Try
- S(E);
- Threat
- QAR2(D),XP(c)
- Vars
- Q(h);N_GUARD::S(F),XP(d)
- B(e);N_GUARD::QAR1(D),XP(a)
- B(f);SBLOCK::QAB1(D)
- Refutation
- P(c);
- Try
- S(F);CHECK
- Vars
- K(b);N_SPINP(a),P-FLIGHT,XS(E)::QAR1(D),XP(c)
- Refutation
- P(d);XS(F)
- Try
- S(F);CHECK,XP(d)
- Vars
- K(b);N_SPINP(a),P-FLIGHT,XS(E)::QAR1(D),XP(c)
- Refutation
- Q(h);XS(F)
- Try
- Q(D);N_PINP(a),XP(c)
- Threat
- DUALS(10)
- Vars
- P(a);CHECK::QAR(D)+S(E),XP(a)
- Refutation
- P(a);XP(B)
- Try
- Q(D);CHECK,N_PINP(a)
- Vars
- K(b);OGATEB,P-FLIGHT,XS(E)::QAR1(D),XP(c)
- Refutation
- B(f);XQ(D)
- Try
- Actual
- S(E);
- Threat
- QAR2(D),XP(c)
- Vars
- Q(h);N_GUARD::S(F),XP(d)
- B(e);N_GUARD::QAR1(D),XP(a)
- B(f);SBLOCK::QAB1(D)
- P(c);SBLOCK::S(E)
- P(d);N_GUARD::S(F)
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