MESON Chess Problem Database
Problem Display
PID: 227937 (4r1n1/8/1N1R3n/2PPk1Nb/q2pP2Q/7B/5RKb/B7 w - - 0 1)
Fastosky, Pedro
L'Italia Scacchistica, 1957
#2
11 + 8
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Sc4#
- 2.Sd7#
- 1...Qc2
- 2.Sd7#
- 1...Qb3
- 2.Sd7#
- 1...Qc6
- 2.Sc4#
- 1...Qd7
- 2.Sc4#
- 2.Sxd7#
- 1...Qxa1
- 2.Sc4#
- 2.Sd7#
- 1...Qa2
- 2.Sd7#
- 1...Qa3
- 2.Sc4#
- 2.Sd7#
- 1...Qb4
- 2.Sd7#
- 1...Qc4
- 2.Sxc4#
- 2.Sd7#
- 1...Qa5
- 2.Sc4#
- 2.Sd7#
- 1...Qa6
- 2.Sd7#
- 1...Qa7
- 2.Sc4#
- 1...Qa8
- 2.Sc4#
- 2.Sd7#
- 1...Re6
- 2.Rxe6#
- 1...Ra8
- 2.Re6#
- 1...Rb8
- 2.Re6#
- 1...Rc8
- 2.Re6#
- 1...Rd8
- 2.Re6#
- 1...Rf8
- 2.Re6#
- 1...Bg1
- 2.Qg3#
- 2.Qf4#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Bf3+
- 2.Sxf3#
- 1...Bg6
- 2.Sf3#
- 1...Bf7
- 2.Sf3#
- 1...Sg4
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sf7
- 2.Rf5#
- 1...Se7
- 2.Re6#
- 1...Qd1
- Tries
- 1.Kxh2?
- threat
- 2.Qg3#
- 2.Qf4#
- 1...Qb3
- 2.Sd7#
- 2.Qf4#
- 1...Qa3
- 2.Sc4#
- 2.Sd7#
- 2.Qf4#
- 1...Rf8
- 2.Re6#
- 1...Bf3
- 2.Sxf3#
- 2.Qg3#
- 1...Bg4
- 2.Qg3#
- 1...Sf5
- 2.Rxf5#
- 2.Qf4#
- 1...Sg4+!
- threat
- 1.Sf7+?
- 1...Sxf7
- 2.Rf5#
- 1...Bxf7!
- 1...Sxf7
- 1.Bxd4+?
- 1...Qxd4
- 2.Sd7#
- 1...Kxd4!
- 1...Qxd4
- 1.Bg4?
- threat
- 2.Qxh2#
- 1...Sxg4
- 2.Rf5#
- 1...Qb3
- 2.Sd7#
- 1...Qa3
- 2.Sc4#
- 2.Sd7#
- 1...Rf8
- 2.Re6#
- 1...Bg1
- 2.Qg3#
- 1...Bg3
- 2.Qxg3#
- 1...Sf5
- 2.Rxf5#
- 1...Bf4!
- threat
- 1.Bf5?
- threat
- 2.Qxh2#
- 1...Bf3+
- 2.Sxf3#
- 1...Sxf5
- 2.Rxf5#
- 1...Re6
- 2.Rxe6#
- 1...Qb3
- 2.Sd7#
- 1...Qa3
- 2.Sc4#
- 2.Sd7#
- 1...Bg1
- 2.Qg3#
- 2.Qf4#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Sg4!
- threat
- 1.Be6?
- threat
- 2.Qxh2#
- 1...Bf3+
- 2.Sxf3#
- 1...Bf4
- 2.Qxf4#
- 1...Sf5
- 2.Rxf5#
- 1...Qb3
- 2.Sd7#
- 1...Qa3
- 2.Sc4#
- 2.Sd7#
- 1...Bg1
- 2.Qg3#
- 2.Qf4#
- 1...Bg3
- 2.Qxg3#
- 1...Sg4
- 2.Rf5#
- 1...Rf8!
- threat
- 1.Bd7?
- threat
- 2.Qxh2#
- 1...Bf3+
- 2.Sxf3#
- 1...Qa3
- 2.Sc4#
- 1...Rf8
- 2.Re6#
- 1...Bg1
- 2.Qg3#
- 2.Qf4#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Sg4
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Qb3!
- threat
- 1.Qg4?
- threat
- 2.Sf3#
- 1...Sxg4
- 2.Rf5#
- 1...Qd1
- 2.Sc4#
- 2.Sd7#
- 1...Qb3
- 2.Sd7#
- 1...Qa3
- 2.Sc4#
- 2.Sd7#
- 1...Re6
- 2.Rxe6#
- 2.Qxe6#
- 1...Rf8
- 2.Re6#
- 2.Qe6#
- 1...Bf4
- 2.Qxf4#
- 1...Bxg4!
- threat
- 1.Kxh2?
- Keys
- 1.Bc8!
- threat
- 2.Qxh2#
- 1...Bf3+
- 2.Sxf3#
- 1...Qb3
- 2.Sd7#
- 1...Qa3
- 2.Sc4#
- 2.Sd7#
- 1...Rf8
- 2.Re6#
- 1...Bg1
- 2.Qg3#
- 2.Qf4#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Sg4
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- threat
- 1.Bc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 15
- Sets
- Q(b);N_GUARD,P_PINR(B)::S(J)
- Q(b);N_GUARD::S(J)
- R(g);N_GUARD::R1(K),XR(g)
- R(g);N_GUARD::R1(K)
- B(a);N_GUARD::QAB(F),XB(a)
- B(a);N_GUARD::QAB1(F),XB(a)
- B(e);CHECK,N_GUARD::S(I),XB(e)
- B(e);N_GUARD::S(I)
- S(f);N_GUARD::R1(B)
- S(f);N_GUARD::R1(B),XS(f)
- S(h);S_CUTR(g)::R1(K)
- Tries
- Try
- K(C);P-FLIGHT,XB(a)
- Threat
- DUALS(2)
- Vars
- R(g);N_GUARD::R1(K)
- B(e);::QAB(F)
- Refutation
- S(f);CHECK
- Try
- S(I);CHECK
- Vars
- S(f);XS(I)::R1(B)
- Refutation
- B(e);XS(I)
- Try
- B(A);CHECK,XP(c)
- Vars
- Q(b);SBLOCK,XB(A)::S(J)
- Refutation
- K(d);S_FLIGHT,XB(A)
- Try
- B(D);
- Threat
- QAB(F),XB(a)
- Vars
- S(f);N_GUARD,XB(D)::R1(B)
- Q(b);N_GUARD::S(J)
- R(g);N_GUARD::R1(K)
- B(a);N_GUARD::QAB(F)
- B(a);N_GUARD::QAB(F),XB(a)
- S(f);N_GUARD::R1(B),XS(f)
- Refutation
- B(a);
- Try
- B(D);
- Threat
- QAB(F),XB(a)
- Vars
- B(e);CHECK,N_GUARD::S(I),XB(e)
- S(f);OGATE,XB(D)::R1(B),XS(f)
- R(g);N_GUARD::R1(K),XR(g)
- Q(b);N_GUARD::S(J)
- B(a);N_GUARD::QAB(F),XB(a)
- B(a);N_GUARD::QAB1(F),XB(a)
- Refutation
- S(f);
- Try
- B(D);
- Threat
- QAB(F),XB(a)
- Vars
- B(e);CHECK,N_GUARD::S(I),XB(e)
- B(a);N_GUARD::QAB1(F),XB(a)
- S(f);N_GUARD::R1(B),XS(f)
- Q(b);N_GUARD::S(J)
- B(a);N_GUARD::QAB(F),XB(a)
- S(f);N_GUARD::R1(B)
- Refutation
- R(g);
- Try
- B(D);
- Threat
- QAB(F),XB(a)
- Vars
- B(e);CHECK,N_GUARD::S(I),XB(e)
- Q(b);N_GUARD::S(J)
- R(g);N_GUARD::R1(K)
- B(a);N_GUARD::QAB(F),XB(a)
- B(a);N_GUARD::QAB1(F),XB(a)
- S(f);N_GUARD::R1(B)
- S(f);N_GUARD::R1(B),XS(f)
- Refutation
- Q(b);
- Try
- Q(F);
- Threat
- S(I)
- Vars
- S(f);N_GUARD,XQ(F)::R1(B)
- Q(b);N_GUARD::S(J)
- B(a);N_GUARD::QAB1(F),XB(a)
- Refutation
- B(e);XQ(F)
- Try
- Actual
- B(D);
- Threat
- QAB(F),XB(a)
- Vars
- B(e);CHECK,N_GUARD::S(I),XB(e)
- Q(b);N_GUARD::S(J)
- R(g);N_GUARD::R1(K)
- B(a);N_GUARD::QAB(F),XB(a)
- B(a);N_GUARD::QAB1(F),XB(a)
- S(f);N_GUARD::R1(B)
- S(f);N_GUARD::R1(B),XS(f)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).