MESON Chess Problem Database
Problem Display
PID: 148175 (2R3K1/5pN1/2PkPP2/rnpN3R/BP1pP3/8/4n2b/2r2b2 w - - 0 1)
Morra, Juan Carlos
Chess, 1955
#2
11 + 10
| 268 | Chess Life | 1958 |
SOLUTION
- SOUND
- Sets
- 1...Sa3
- 2.Rd8#
- 1...Sc3
- 2.Rd8#
- 1...Sa7
- 2.Rd8#
- 1...Sc7
- 2.Rd8#
- 1...fxe6
- 2.Se8#
- 1...Sa3
- Tries
- 1.Sf4?
- threat
- 2.Se8#
- 2.Rd5#
- 2.e5#
- 1...Bxf4
- 2.Rd5#
- 1...cxb4
- 2.Se8#
- 2.Rd5#
- 1...fxe6
- 2.Se8#
- 2.e5#
- 1...Sec3
- 2.Se8#
- 2.bxc5#
- 2.e5#
- 1...Sbc3
- 2.Se8#
- 2.e5#
- 1...Sc7
- 2.Rd8#
- 2.e5#
- 1...Sxf4!
- threat
- 1.Sb6?
- threat
- 2.Rd5#
- 1...fxe6
- 2.Se8#
- 1...Sec3
- 2.bxc5#
- 1...Sf4
- 2.e5#
- 1...Sbc3
- 2.Sc4#
- 1...Sc7
- 2.Rd8#
- 1...Be5!
- threat
- 1.Sc7?
- threat
- 2.Sce8#
- 1...Sxc7
- 2.Rd8#
- 1...Kxc6!
- threat
- 1.Se7?
- threat
- 2.Rd5#
- 1...fxe6
- 2.Se8#
- 1...Be5
- 2.Sef5#
- 1...Sec3
- 2.bxc5#
- 1...Sf4
- 2.e5#
- 1...Sc7
- 2.Rd8#
- 1...Sbc3!
- threat
- 1.Sf5+?
- 1...Kxe6
- 2.Re8#
- 1...Ke5!
- 1...Kxe6
- 1.exf7?
- threat
- 2.f8Q#
- 2.f8B#
- 1...Rxa4
- 2.f8Q#
- 2.f8B#
- 1...cxb4
- 2.f8Q#
- 2.f8B#
- 1...Be5
- 2.f8Q#
- 2.f8B#
- 1...Ra1
- 2.f8Q#
- 2.f8B#
- 1...Rb1
- 2.f8Q#
- 2.f8B#
- 1...Rd1
- 2.f8Q#
- 2.f8B#
- 1...Re1
- 2.f8Q#
- 2.f8B#
- 1...Rc2
- 2.f8Q#
- 2.f8B#
- 1...Rc3
- 2.f8Q#
- 2.f8B#
- 1...Rc4
- 2.f8Q#
- 2.f8B#
- 1...Ra6
- 2.f8Q#
- 2.f8B#
- 1...Ra8
- 2.f8Q#
- 2.f8B#
- 1...Bg2
- 2.f8Q#
- 2.f8B#
- 1...Bh3
- 2.f8Q#
- 2.f8B#
- 1...Bg1
- 2.f8Q#
- 2.f8B#
- 1...Bg3
- 2.f8Q#
- 2.f8B#
- 1...Bf4
- 2.f8Q#
- 2.f8B#
- 1...Sg1
- 2.f8Q#
- 2.f8B#
- 1...Sec3
- 2.f8Q#
- 2.f8B#
- 1...Sg3
- 2.f8Q#
- 2.f8B#
- 1...Sf4
- 2.f8Q#
- 2.f8B#
- 1...Sa3
- 2.Rd8#
- 2.f8Q#
- 2.f8B#
- 1...Sbc3
- 2.Rd8#
- 2.f8Q#
- 2.f8B#
- 1...Sa7
- 2.Rd8#
- 2.f8Q#
- 2.f8B#
- 1...Sc7
- 2.Rd8#
- 2.f8Q#
- 2.f8B#
- 1...d3
- 2.f8Q#
- 2.f8B#
- 1...c4
- 2.f8Q#
- 2.f8B#
- 1...Ra7!
- threat
- 1.e7?
- threat
- 2.e8S#
- 1...Sc7
- 2.Rd8#
- 1...cxb4!
- threat
- 1.Sf4?
- Keys
- 1.Se3!
- threat
- 2.Rd5#
- 1...fxe6
- 2.Se8#
- 1...Be5
- 2.Sef5#
- 1...Sec3
- 2.bxc5#
- 1...Sf4
- 2.e5#
- 1...Sbc3
- 2.Sc4#
- 1...Sc7
- 2.Rd8#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- S(g);::R(J)
- P(j);SBLOCK,XP(G)::S(I)
- Tries
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- B(d);XS(D)::R1(E)
- Refutation
- S(c);XS(D)
- Try
- S(D);
- Threat
- R1(E)
- Vars
- P(j);SBLOCK,XP(G)::S(I)
- S(c);S_CUTR(a)::P(B),XP(h)
- S(c);S_CUTB(d)::P(C)
- S(g);S_CUTR(a)::S(D)
- S(g);SBLOCK::R(J)
- Refutation
- B(d);
- Try
- S(D);
- Threat
- S(D)
- Vars
- S(g);SBLOCK,XS(D)::R(J)
- Refutation
- K(i);P-FLIGHT,P_SPINS(g),XP(F)
- Try
- S(D);
- Threat
- R1(E)
- Vars
- P(j);SBLOCK,XP(G)::S(I)
- B(d);SBLOCK::S(D)
- S(c);S_CUTR(a)::P(B),XP(h)
- S(c);S_CUTB(d)::P(C)
- S(g);SBLOCK::R(J)
- Refutation
- S(g);
- Try
- S(I);CHECK
- Vars
- K(i);P-FLIGHT,XP(G)::R(J)
- Refutation
- K(i);S_FLIGHT
- Try
- P(G);XP(j)
- Threat
- P=Q
- Vars
- R(f);XB(A)::P=Q
- P(h);XP(B)::P=Q
- B(d);::P=Q
- R(a);::P=Q
- R(f);::P=Q
- R(f);P_PINR(J)::P=Q
- B(b);::P=Q
- S(c);::P=Q
- P(e);::P=Q
- P(h);::P=Q
- Refutation
- R(f);
- Try
- P(G);
- Threat
- P=S
- Vars
- S(g);::R(J)
- Refutation
- P(h);XP(B)
- Try
- Actual
- S(D);
- Threat
- R1(E)
- Vars
- P(j);SBLOCK,XP(G)::S(I)
- B(d);SBLOCK::S(D)
- S(c);S_CUTR(a)::P(B),XP(h)
- S(c);S_CUTB(d)::P(C)
- S(g);S_CUTR(a)::S(D)
- S(g);SBLOCK::R(J)
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