MESON Chess Problem Database
Problem Display
PID: 150046 (3B1K2/8/5p1p/4NPkp/1R3p2/3n1Q2/4N3/8 w - - 0 1)
Abela de la Torre, Aurelio
La Strategie, 1887
#2
7 + 6
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sxb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Kh4
- Tries
- 1.Kf7?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Kxf5
- 2.Qxh5#
- 1...Sxb4
- 2.Qxf4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sxe5+!
- 1...Kh4
- 1.Kg7?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Sxb4
- 2.Qxf4#
- 1...Sxe5
- 2.Qxf4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Kxf5!
- 1...Kh4
- 1.Ke8?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Sxb4
- 2.Qxf4#
- 1...Sxe5
- 2.Qxf4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Kxf5!
- 1...Kh4
- 1.Kg8?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Sxb4
- 2.Qxf4#
- 1...Sxe5
- 2.Qxf4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Kxf5!
- 1...Kh4
- 1.Sg3?
- threat
- 2.Qxh5#
- 1...fxg3
- 2.Sf7#
- 1...h4
- 2.Sf7#
- 2.Qg4#
- 2.Qh5#
- 1...Kh4!
- threat
- 1.Sxf4?
- threat
- 2.Sh3#
- 2.Se6#
- 2.Qxh5#
- 1...Kh4
- 2.Bxf6#
- 1...Kxf5
- 2.Qxh5#
- 1...Sxf4
- 2.Qxf4#
- 1...Sf2
- 2.Se6#
- 2.Qxh5#
- 1...Sc5
- 2.Sh3#
- 2.Qxh5#
- 1...h4
- 2.Sh3#
- 2.Se6#
- 2.Qg4#
- 2.Qh5#
- 1...Sxb4!
- threat
- 1.Sf7+?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Kxf5!
- 1...Kh4
- 1.Be7?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Sxb4
- 2.Qxf4#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Rb1?
- 1...Kh4
- 2.Bxf6#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Rb2?
- 1...Kh4
- 2.Bxf6#
- 1...Sxb2
- 2.Qxf4#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Rb3?
- 1...Kh4
- 2.Bxf6#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Ra4?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Rc4?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Rd4?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Re4?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Rxf4?
- threat
- 2.Sf7#
- 2.Qg2#
- 2.Qg3#
- 1...Sxf4
- 2.Qxf4#
- 1...h4
- 2.Sf7#
- 2.Qg4#
- 1...Se1
- 2.Sf7#
- 2.Qg3#
- 1...Sf2
- 2.Sf7#
- 1...Sxe5!
- threat
- 1.Rb5?
- 1...Kh4
- 2.Bxf6#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Sf7#
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Rb6?
- 1...Kh4
- 2.Bxf6#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Rb7?
- 1...Kh4
- 2.Bxf6#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Rb8?
- 1...Kh4
- 2.Bxf6#
- 1...Sxe5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sb4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Kxf5!
- 1...Kh4
- 1.Qg2+?
- 1...Kh4
- 2.Sf3#
- 2.Sg6#
- 2.Bxf6#
- 2.Qg3#
- 1...Kxf5!
- 1...Kh4
- 1.Qxd3?
- 1...Kh4
- 2.Bxf6#
- 2.Qg3#
- 1...f3
- 2.Sxf3#
- 2.Sf7#
- 1...h4!
- 1...Kh4
- 1.Qh3?
- threat
- 2.Sf3#
- 2.Sf7#
- 1...h4
- 2.Qg4#
- 1...Se1
- 2.Sf7#
- 1...f3
- 2.Sxf3#
- 2.Sf7#
- 1...Sxe5!
- threat
- 1.Kf7?
- Keys
- 1.Ke7!
- 1...Kh4
- 2.Qg3#
- 1...Kxf5
- 2.Qxh5#
- 1...Sxb4
- 2.Qxf4#
- 1...Sxe5
- 2.Qxf4#
- 1...fxe5
- 2.Ke6#
- 1...Sc1
- 2.Qxf4#
- 1...Se1
- 2.Qxf4#
- 1...Sb2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...h4
- 2.Qg4#
- 1...Kh4
- 1.Ke7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB1(B),XP(b)
- S(a);N_GUARD,XR(C)::QAB1(B),XP(b)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)::QAR2(B),XP(d)
- S(a);N_GUARD,XR(C)::QAB1(B),XP(b)
- S(a);N_GUARD::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- Refutation
- S(a);CHECK,XS(D)
- Try
- K(G);S_FLIGHT
- Vars
- S(a);N_GUARD,XR(C)::QAB1(B),XP(b)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- S(a);N_GUARD::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- K(G);P-FLIGHT
- Vars
- S(a);N_GUARD,XR(C)::QAB1(B),XP(b)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- S(a);N_GUARD::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- K(G);P-FLIGHT
- Vars
- S(a);N_GUARD,XR(C)::QAB1(B),XP(b)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- S(a);N_GUARD::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- S(A);
- Threat
- QAR1(B),XP(d)
- Vars
- P(b);XS(A)::S(D)
- Refutation
- K(c);N_SPINP(e),P_SPINP(b),S_FLIGHT
- Try
- S(A);XP(b)
- Threat
- DUALS(3)
- Vars
- K(c);S_FLIGHT::B(F),XP(e)
- K(c);N_SPINP(e),P-FLIGHT,XP(E)::QAR2(B),XP(d)
- S(a);OGATE,XS(A)::QAB1(B),XS(a)
- Refutation
- S(a);XR(C)
- Try
- S(D);CHECK
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- B(F);
- Vars
- S(a);N_GUARD,XR(C)::QAB1(B),XP(b)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);
- Vars
- K(c);S_FLIGHT::B(F),XP(e)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);
- Vars
- K(c);S_FLIGHT::B(F),XP(e)
- S(a);N_GUARD,XR(C)::QAB1(B),XP(b)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);
- Vars
- K(c);S_FLIGHT::B(F),XP(e)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);
- Vars
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);
- Vars
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);
- Vars
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);
- Vars
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);XP(b)
- Threat
- DUALS(3)
- Vars
- S(a);OGATE,XR(C)::QAB1(B),XS(a)
- S(a);::S(D)
- Refutation
- S(a);XS(D)
- Try
- R(C);
- Vars
- K(c);S_FLIGHT::B(F),XP(e)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);
- Vars
- K(c);S_FLIGHT::B(F),XP(e)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);
- Vars
- K(c);S_FLIGHT::B(F),XP(e)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- R(C);
- Vars
- K(c);S_FLIGHT::B(F),XP(e)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAB1(B),XP(b)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,P_SPINP(b),XP(E)
- Try
- Q(B);CHECK
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,XP(E)
- Try
- Q(B);XS(a)
- Refutation
- P(d);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(d);N_GUARD::QAR1(B)
- S(a);::S(D)
- Refutation
- S(a);XS(D)
- Try
- Actual
- K(G);N_PINP(e),S_FLIGHT
- Vars
- K(c);P_SPINP(b),S_FLIGHT::QAB1(B)
- K(c);P-FLIGHT,P_SPINP(b),XP(E)::QAR2(B),XP(d)
- S(a);N_GUARD,XR(C)::QAB1(B),XP(b)
- S(a);N_GUARD,XS(D)::QAB1(B),XP(b)
- P(e);XS(D)::B(F)+K(G)
- S(a);N_GUARD::QAB1(B),XP(b)
- P(d);N_GUARD::QAR1(B)
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).