MESON Chess Problem Database
Problem Display
PID: 114833 (7Q/1p6/1P6/K1B2p2/5Pp1/3N2R1/4P2p/5r1k w - - 0 1)
Andrade, Barry Jack da Costa
Frederiksborg Amts Avis, 1957
#2
8 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1+
- 2.Qxa1#
- 1...Rb1
- 2.Sf2#
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Rg1#
- 1...Rxf4
- 2.Rg1#
- 1...Ra1+
- Tries
- 1.Ka4?
- 1...Ra1+
- 2.Qxa1#
- 1...Rb1
- 2.Sf2#
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Rg1#
- 1...Rxf4+!
- 1...Ra1+
- 1.Kb5?
- 1...Rxf4
- 2.Rg1#
- 1...Ra1
- 2.Sf2#
- 2.Qxa1#
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Rg1#
- 1...Rb1+!
- 1...Rxf4
- 1.Bg1?
- threat
- 2.Qxh2#
- 1...Rxg1
- 2.Sf2#
- 1...Rf2
- 2.Sxf2#
- 1...Ra1+!
- threat
- 1.Bd4?
- 1...Rxf4
- 2.Rg1#
- 1...Rb1
- 2.Sf2#
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Rg1#
- 1...Ra1+!
- 1...Rxf4
- 1.Rxg4?
- 1...Ra1+
- 2.Qxa1#
- 1...Rxf4
- 2.Rg1#
- 1...Rf3
- 2.Rg1#
- 1...Rb1
- 2.Sf2#
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...fxg4!
- 1...Ra1+
- 1.Qa1?
- threat
- 2.Sf2#
- 2.Qxf1#
- 1...Rb1
- 2.Sf2#
- 2.Qxb1#
- 1...Rc1
- 2.Sf2#
- 2.Qxc1#
- 1...Rd1
- 2.Sf2#
- 2.Qxd1#
- 1...Re1
- 2.Sf2#
- 2.Qxe1#
- 1...Rg1
- 2.Sf2#
- 1...Rxa1+!
- threat
- 1.Qh4?
- 1...Rxf4
- 2.Rg1#
- 1...Rf3
- 2.Rg1#
- 1...Rb1
- 2.Sf2#
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...Ra1+!
- 1...Rxf4
- 1.Qh5?
- 1...Rxf4
- 2.Rg1#
- 1...Rf3
- 2.Rg1#
- 1...Rb1
- 2.Sf2#
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...Ra1+!
- 1...Rxf4
- 1.Qh6?
- 1...Rxf4
- 2.Rg1#
- 1...Rf3
- 2.Rg1#
- 1...Rb1
- 2.Sf2#
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...Ra1+!
- 1...Rxf4
- 1.Qh7?
- 1...Rxf4
- 2.Rg1#
- 1...Rf3
- 2.Rg1#
- 1...Rb1
- 2.Sf2#
- 2.Qxb7#
- 1...Rc1
- 2.Sf2#
- 2.Qxb7#
- 1...Rd1
- 2.Sf2#
- 2.Qxb7#
- 1...Re1
- 2.Sf2#
- 2.Qxb7#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...Ra1+!
- 1...Rxf4
- 1.e4?
- 1...Ra1+
- 2.Qxa1#
- 1...Rxf4
- 2.Rg1#
- 1...Rf3
- 2.Rg1#
- 1...Rb1
- 2.Sf2#
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...fxe4!
- 1...Ra1+
- 1.Ka4?
- Keys
- 1.Be3!
- 1...Ra1+
- 2.Qxa1#
- 1...Rxf4
- 2.Rg1#
- 1...Rb1
- 2.Sf2#
- 1...Rc1
- 2.Sf2#
- 1...Rd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 2.Rxg1#
- 1...Rf2
- 2.Sxf2#
- 1...Rf3
- 2.Rg1#
- 1...Ra1+
- 1.Be3!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);CHECK,OGATEB::QAB1(H),XR(a)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- R(a);N_GUARD::R1(C)
- R(a);N_GUARD,XP(D)::R1(C)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- R(a);CHECK,OGATEB::QAB1(H),XR(a)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- R(a);N_GUARD::R1(C)
- Refutation
- R(a);CHECK,XP(D)
- Try
- K(E);P-FLIGHT
- Vars
- R(a);N_GUARD,XP(D)::R1(C)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- R(a);N_GUARD::R1(C)
- Refutation
- R(a);CHECK
- Try
- B(F);
- Threat
- QAR1(H),XP(c)
- Vars
- R(a);N_GUARD,XB(F)::S(B)
- R(a);N_GUARD::S(B),XR(a)
- Refutation
- R(a);CHECK
- Try
- B(F);
- Vars
- R(a);N_GUARD,XP(D)::R1(C)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- R(a);N_GUARD::R1(C)
- Refutation
- R(a);CHECK
- Try
- R(C);XP(d)
- Vars
- R(a);CHECK,OGATEB::QAB1(H),XR(a)
- R(a);N_GUARD,XP(D)::R1(C)
- R(a);N_GUARD::R1(C)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- Refutation
- P(e);XR(C)
- Try
- Q(H);N_PINP(c),P_PINR(a)
- Threat
- DUALS(2)
- Vars
- R(a);::S(B)
- Refutation
- R(a);CHECK,N_SPINR(a),XQ(H)
- Try
- Q(H);
- Vars
- R(a);N_GUARD,XP(D)::R1(C)
- R(a);N_GUARD::R1(C)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- Refutation
- R(a);CHECK
- Try
- Q(H);
- Vars
- R(a);N_GUARD,XP(D)::R1(C)
- R(a);N_GUARD::R1(C)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- Refutation
- R(a);CHECK
- Try
- Q(H);
- Vars
- R(a);N_GUARD,XP(D)::R1(C)
- R(a);N_GUARD::R1(C)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- Refutation
- R(a);CHECK
- Try
- Q(H);
- Vars
- R(a);N_GUARD,XP(D)::R1(C)
- R(a);N_GUARD::R1(C)
- R(a);N_GUARD::S(B),XR(a)
- Refutation
- R(a);CHECK
- Try
- P(A);
- Vars
- R(a);CHECK,OGATEB::QAB1(H),XR(a)
- R(a);N_GUARD,XP(D)::R1(C)
- R(a);N_GUARD::R1(C)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- Refutation
- P(e);XP(A)
- Try
- Actual
- B(F);
- Vars
- R(a);CHECK,OGATEB::QAB1(H),XR(a)
- R(a);N_GUARD,XP(D)::R1(C)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- R(a);N_GUARD::R1(C)
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).