MESON Chess Problem Database
Problem Display
PID: 121856 (5N2/b3N3/r5Pn/4k3/PQ1p4/7K/5RB1/8 w - - 0 1)
Godoy, Francisco
Caissa, 1980
#2
8 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxa4
- 2.Sc6#
- 1...Ra5
- 2.Sc6#
- 1...Rb6
- 2.Qc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd6
- 2.Qe1#
- 1...Re6
- 2.Sd7#
- 1...Rxg6
- 2.Sexg6#
- 1...Bc5
- 2.Qxc5#
- 1...Bb6
- 2.Sc6#
- 1...Bb8
- 2.Qc5#
- 1...Sg4
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sf7
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...d3
- 2.Qf4#
- 1...Rxa4
- Tries
- 1.Kh4?
- 1...Sf5+
- 2.Rxf5#
- 1...Rxa4
- 2.Sc6#
- 1...Rxg6
- 2.Sexg6#
- 1...Bc5
- 2.Qxc5#
- 1...Ra5
- 2.Sc6#
- 1...Rb6
- 2.Qc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd6
- 2.Qe1#
- 1...Re6
- 2.Sd7#
- 1...Bb6
- 2.Sc6#
- 1...Bb8
- 2.Qc5#
- 1...Sg4
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...d3
- 2.Qf4#
- 1...Rf6!
- 1...Sf5+
- 1.Bh1?
- 1...Rxa4
- 2.Sc6#
- 1...Rxg6
- 2.Sexg6#
- 1...Bc5
- 2.Qxc5#
- 1...Sf5
- 2.Rxf5#
- 1...Ra5
- 2.Sc6#
- 1...Rb6
- 2.Qc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd6
- 2.Qe1#
- 1...Re6
- 2.Sd7#
- 1...Bb6
- 2.Sc6#
- 1...Bb8
- 2.Qc5#
- 1...Sg4
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...d3
- 2.Qf4#
- 1...Rf6!
- 1...Rxa4
- 1.Bd5?
- threat
- 2.Sd7#
- 1...Rd6
- 2.Qe1#
- 1...Bc5!
- threat
- 1.Rf1?
- 1...Rxa4
- 2.Sc6#
- 1...Rxg6
- 2.Sexg6#
- 1...Bc5
- 2.Qxc5#
- 1...Sf5
- 2.Rxf5#
- 1...Ra5
- 2.Sc6#
- 1...Rb6
- 2.Qc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd6
- 2.Qe1#
- 1...Re6
- 2.Sd7#
- 1...Bb6
- 2.Sc6#
- 1...Bb8
- 2.Qc5#
- 1...Sg4
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...d3
- 2.Qf4#
- 1...Rf6!
- 1...Rxa4
- 1.Re2+?
- 1...Kf4
- 2.Qd2#
- 1...Kf6!
- 1...Kf4
- 1.Qa5+?
- 1...Kd6
- 2.Sc8#
- 1...Bc5
- 2.Qxc5#
- 1...Rxa5!
- 1...Kd6
- 1.Qb5+?
- 1...Bc5
- 2.Qxc5#
- 1...Kd6!
- 1...Bc5
- 1.Qb8+?
- 1...Rd6
- 2.Sc6#
- 1...Bxb8!
- 1...Rd6
- 1.a5?
- 1...Rxa5
- 2.Sc6#
- 1...Rxg6
- 2.Sexg6#
- 1...Bc5
- 2.Qxc5#
- 1...Sf5
- 2.Rxf5#
- 1...Rb6
- 2.Qc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd6
- 2.Qe1#
- 1...Re6
- 2.Sd7#
- 1...Bb6
- 2.Sc6#
- 1...Bb8
- 2.Qc5#
- 1...Sg4
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...d3
- 2.Qf4#
- 1...Rf6!
- 1...Rxa5
- 1.g7?
- 1...Rxa4
- 2.Sc6#
- 2.Seg6#
- 1...Bc5
- 2.Qxc5#
- 1...Sf5
- 2.Rxf5#
- 1...Ra5
- 2.Sc6#
- 2.Seg6#
- 1...Rb6
- 2.Qc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd6
- 2.Qe1#
- 1...Re6
- 2.Sd7#
- 1...Rg6
- 2.Sexg6#
- 1...Bb6
- 2.Sc6#
- 2.Seg6#
- 1...Bb8
- 2.Qc5#
- 1...Sg4
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...d3
- 2.Qf4#
- 1...Rf6!
- 1...Rxa4
- 1.Kh4?
- Keys
- 1.Kg3!
- 1...Rxg6+
- 2.Sexg6#
- 1...Sf5+
- 2.Rxf5#
- 1...Rxa4
- 2.Sc6#
- 1...Bc5
- 2.Qxc5#
- 1...Ra5
- 2.Sc6#
- 1...Rb6
- 2.Qc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd6
- 2.Qe1#
- 1...Re6
- 2.Sd7#
- 1...Rf6
- 2.Re2#
- 1...Bb6
- 2.Sc6#
- 1...Bb8
- 2.Qc5#
- 1...Sg4
- 2.Rf5#
- 1...Sf7
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...d3
- 2.Qf4#
- 1...Rxg6+
- 1.Kg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD,XP(D)::S(G)
- R(c);N_GUARD::S(G)
- R(c);S_CUTB(e)::QAR2(E)
- R(c);N_GUARD::S(G),XR(c)
- R(c);SBLOCK::QAR(E)
- R(c);SBLOCK::S(H)
- R(c);XP(F)::S(G),XR(c)
- B(e);N_GUARD::QAR2(E),XB(e)
- B(e);S_CUTR(c)::S(G)
- B(e);N_GUARD::QAR2(E)
- S(d);N_GUARD::R1(A)
- S(d);N_GUARD::R1(A),XS(d)
- P(a);OGATE::QAB1(E)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- S(d);CHECK,N_GUARD::R1(A),XS(d)
- R(c);N_GUARD,XP(D)::S(G)
- R(c);XP(F)::S(G),XR(c)
- B(e);N_GUARD::QAR2(E),XB(e)
- R(c);N_GUARD::S(G)
- R(c);S_CUTB(e)::QAR2(E)
- R(c);N_GUARD::S(G),XR(c)
- R(c);SBLOCK::QAR(E)
- R(c);SBLOCK::S(H)
- B(e);S_CUTR(c)::S(G)
- B(e);N_GUARD::QAR2(E)
- S(d);N_GUARD::R1(A)
- P(a);OGATE::QAB1(E)
- Refutation
- R(c);
- Try
- B(B);
- Vars
- R(c);N_GUARD,XP(D)::S(G)
- R(c);XP(F)::S(G),XR(c)
- B(e);N_GUARD::QAR2(E),XB(e)
- S(d);N_GUARD::R1(A),XS(d)
- R(c);N_GUARD::S(G)
- R(c);S_CUTB(e)::QAR2(E)
- R(c);N_GUARD::S(G),XR(c)
- R(c);SBLOCK::QAR(E)
- R(c);SBLOCK::S(H)
- B(e);S_CUTR(c)::S(G)
- B(e);N_GUARD::QAR2(E)
- S(d);N_GUARD::R1(A)
- P(a);OGATE::QAB1(E)
- Refutation
- R(c);
- Try
- B(B);
- Threat
- S(H)
- Vars
- R(c);SBLOCK::QAR(E)
- Refutation
- B(e);
- Try
- R(A);
- Vars
- R(c);N_GUARD,XP(D)::S(G)
- R(c);XP(F)::S(G),XR(c)
- B(e);N_GUARD::QAR2(E),XB(e)
- S(d);N_GUARD::R1(A),XS(d)
- R(c);N_GUARD::S(G)
- R(c);S_CUTB(e)::QAR2(E)
- R(c);N_GUARD::S(G),XR(c)
- R(c);SBLOCK::QAR(E)
- R(c);SBLOCK::S(H)
- B(e);S_CUTR(c)::S(G)
- B(e);N_GUARD::QAR2(E)
- S(d);N_GUARD::R1(A)
- P(a);OGATE::QAB1(E)
- Refutation
- R(c);
- Try
- R(A);CHECK
- Vars
- K(b);P_SPINP(a),S_FLIGHT::QAB(E)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(E);CHECK
- Vars
- K(b);S_FLIGHT::S(G)
- B(e);N_GUARD,P_SPINB(e)::QAR2(E),XB(e)
- Refutation
- R(c);XQ(E)
- Try
- Q(E);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAR2(E),XB(e)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- Refutation
- B(e);XQ(E)
- Try
- P(D);
- Vars
- R(c);N_GUARD,XP(D)::S(G)
- R(c);XP(F)::S(G),XR(c)
- B(e);N_GUARD::QAR2(E),XB(e)
- S(d);N_GUARD::R1(A),XS(d)
- R(c);S_CUTB(e)::QAR2(E)
- R(c);N_GUARD::S(G),XR(c)
- R(c);SBLOCK::QAR(E)
- R(c);SBLOCK::S(H)
- B(e);S_CUTR(c)::S(G)
- B(e);N_GUARD::QAR2(E)
- S(d);N_GUARD::R1(A)
- P(a);OGATE::QAB1(E)
- Refutation
- R(c);
- Try
- P(F);
- Vars
- B(e);N_GUARD::QAR2(E),XB(e)
- S(d);N_GUARD::R1(A),XS(d)
- R(c);S_CUTB(e)::QAR2(E)
- R(c);N_GUARD::S(G),XR(c)
- R(c);SBLOCK::QAR(E)
- R(c);SBLOCK::S(H)
- B(e);N_GUARD::QAR2(E)
- S(d);N_GUARD::R1(A)
- P(a);OGATE::QAB1(E)
- Refutation
- R(c);
- Try
- Actual
- K(C);P-FLIGHT
- Vars
- R(c);CHECK,XP(F)::S(G),XR(c)
- S(d);CHECK,N_GUARD::R1(A),XS(d)
- R(c);N_GUARD,XP(D)::S(G)
- B(e);N_GUARD::QAR2(E),XB(e)
- R(c);N_GUARD::S(G)
- R(c);S_CUTB(e)::QAR2(E)
- R(c);N_GUARD::S(G),XR(c)
- R(c);SBLOCK::QAR(E)
- R(c);SBLOCK::S(H)
- R(c);SBLOCK::R(A)
- B(e);S_CUTR(c)::S(G)
- B(e);N_GUARD::QAR2(E)
- S(d);N_GUARD::R1(A)
- P(a);OGATE::QAB1(E)
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).