MESON Chess Problem Database
Problem Display
PID: 136483 (7n/3p4/3R1p1N/2Ppkp1p/7Q/p6p/B4N1P/2n4K w - - 0 1)
Morra, Juan Carlos
1st HM., BCF 104. Ty., 1963-1964
#2
8 + 10
| 5454 | Near Snap | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Sxa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sg6
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...d4
- 2.Qxd4#
- 1...f4
- 2.Qxf6#
- 1...Sxa2
- Tries
- 1.Kg1?
- 1...Sxa2
- 2.Sd3#
- 1...f4
- 2.Qxf6#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sg6
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...d4
- 2.Qxd4#
- 1...Se2+!
- 1...Sxa2
- 1.Bb1?
- 1...f4
- 2.Qxf6#
- 1...Se2
- 2.Sd3#
- 1...Sa2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sg6
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...d4
- 2.Qxd4#
- 1...a2!
- 1...f4
- 1.Bb3?
- 1...Sxb3
- 2.Sd3#
- 1...f4
- 2.Qxf6#
- 1...Se2
- 2.Sd3#
- 1...Sa2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sg6
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...d4
- 2.Qxd4#
- 1...a2!
- 1...Sxb3
- 1.Bc4?
- 1...dxc4
- 2.Qd4#
- 1...f4
- 2.Qxf6#
- 1...Se2
- 2.Sd3#
- 1...Sa2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sg6
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...d4
- 2.Qxd4#
- 1...a2!
- 1...dxc4
- 1.Bxd5?
- 1...f4
- 2.Qxf6#
- 1...Sa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sg6
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...a2!
- 1...f4
- 1.Rxf6?
- 1...Sxa2
- 2.Sd3#
- 1...f4
- 2.Qxf4#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sg6
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...d4
- 2.Rxf5#
- 1...d6!
- 1...Sxa2
- 1.Qg3+?
- 1...Kd4
- 2.Rxd5#
- 1...f4!
- 1...Kd4
- 1.Kg1?
- Keys
- 1.Qxh3!
- threat
- 2.Qe3#
- 1...Kd4
- 2.Rxd5#
- 1...Kf4
- 2.Qg3#
- 1...d4
- 2.Qxf5#
- 1...f4
- 2.Rxd5#
- threat
- 1.Qxh3!
Anticipated by 99995(1948)
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- S(a);N_GUARD,XB(B)::S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(j);N_GUARD::S(H)
- S(j);N_GUARD::S(H),XS(j)
- P(d);::QAB1(E),XP(d)
- P(f);::QAB1(E),XP(h)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(a);N_GUARD,XB(B)::S(C)
- P(f);::QAB1(E),XP(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(j);N_GUARD::S(H)
- S(j);N_GUARD::S(H),XS(j)
- P(d);::QAB1(E),XP(d)
- Refutation
- S(a);CHECK
- Try
- B(B);
- Vars
- P(f);::QAB1(E),XP(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(j);N_GUARD::S(H)
- S(j);N_GUARD::S(H),XS(j)
- P(d);::QAB1(E),XP(d)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- S(a);N_GUARD,XB(B)::S(C)
- P(f);::QAB1(E),XP(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(j);N_GUARD::S(H)
- S(j);N_GUARD::S(H),XS(j)
- P(d);::QAB1(E),XP(d)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- P(d);XB(B)::QAB1(E)
- P(f);::QAB1(E),XP(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(j);N_GUARD::S(H)
- S(j);N_GUARD::S(H),XS(j)
- P(d);::QAB1(E),XP(d)
- Refutation
- P(b);
- Try
- B(B);XP(d)
- Vars
- P(f);::QAB1(E),XP(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(j);N_GUARD::S(H)
- S(j);N_GUARD::S(H),XS(j)
- Refutation
- P(b);
- Try
- R(G);XP(h)
- Vars
- S(a);N_GUARD,XB(B)::S(C)
- P(f);::QAB1(E),XP(f)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(j);N_GUARD::S(H)
- S(j);N_GUARD::S(H),XS(j)
- P(d);::R1(G),XP(f)
- Refutation
- P(i);
- Try
- Q(E);CHECK
- Vars
- K(e);P_SPINP(d),S_FLIGHT::R1(G),XP(d)
- Refutation
- P(f);P_SPINP(f)
- Try
- Actual
- Q(E);XP(c)
- Threat
- QAR2(E)
- Vars
- K(e);P_SPINP(d),S_FLIGHT::R1(G),XP(d)
- K(e);S_FLIGHT::QAB1(E)
- P(d);::QAR1(E),XP(f)
- P(f);SBLOCK::R1(G),XP(d)
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