MESON Chess Problem Database
Problem Display
PID: 6793 (6Q1/5R2/BPN5/R1Pn4/P3N3/1k2Pp2/p1p2K2/n1B5 w - - 0 1)
Andrade, Barry Jack da Costa
Social Chess Quarterly (The), 1933
#2
12 + 6
SOLUTION
- SOUND
- Sets
- 1...Sc3
- 2.Sd2#
- 1...Sxe3
- 2.Rxf3#
- 1...Sb4
- 2.Sd4#
- 1...Sf4
- 2.Rxf4#
- 1...Sxb6
- 2.Rb7#
- 1...Sf6
- 2.Rxf6#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 1...Sc3
- Tries
- 1.Ke1?
- 1...Sxe3
- 2.Rxf3#
- 1...Sxb6
- 2.Rb7#
- 1...Sc3
- 2.Sd2#
- 1...Sb4
- 2.Sd4#
- 1...Sf4
- 2.Rxf4#
- 1...Sf6
- 2.Rxf6#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 1...f2+!
- 1...Sxe3
- 1.Kg1?
- 1...Sxe3
- 2.Rxf3#
- 1...Sxb6
- 2.Rb7#
- 1...Sc3
- 2.Sd2#
- 1...Sb4
- 2.Sd4#
- 1...Sf4
- 2.Rxf4#
- 1...Sf6
- 2.Rxf6#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 1...f2+!
- 1...Sxe3
- 1.Kxf3?
- 1...Sxb6
- 2.Rb7#
- 1...Sc3
- 2.Sd2#
- 1...Sb4
- 2.Sd4#
- 1...Sf4
- 2.Rxf4#
- 1...Sf6
- 2.Rxf6#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 1...Sxe3!
- 1...Sxb6
- 1.Kg3?
- 1...Sxe3
- 2.Rxf3#
- 1...Sxb6
- 2.Rb7#
- 1...Sc3
- 2.Sd2#
- 1...Sb4
- 2.Sd4#
- 1...Sf4
- 2.Rxf4#
- 1...Sf6
- 2.Rxf6#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 1...f2!
- 1...Sxe3
- 1.Be2?
- 1...Sxe3
- 2.Rxf3#
- 1...Sxb6
- 2.Rb7#
- 1...Sc3
- 2.Sd2#
- 1...Sb4
- 2.Sd4#
- 1...Sf4
- 2.Rxf4#
- 1...Sf6
- 2.Rxf6#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 1...fxe2!
- 1...Sxe3
- 1.Bd3?
- 1...Sxb6
- 2.Rb7#
- 1...Sc3
- 2.Sd2#
- 1...Sb4
- 2.Sd4#
- 1...Sf4
- 2.Rxf4#
- 1...Sf6
- 2.Rxf6#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 1...Sxe3!
- 1...Sxb6
- 1.Bb5?
- 1...Sxe3
- 2.Rxf3#
- 1...Sc3
- 2.Sd2#
- 1...Sb4
- 2.Sd4#
- 1...Sf4
- 2.Rxf4#
- 1...Sf6
- 2.Rxf6#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 1...Sxb6!
- 1...Sxe3
- 1.Rb5+?
- 1...Kc4
- 2.Se5#
- 2.Rb1#
- 2.Rb2#
- 2.Rb4#
- 1...Sb4
- 2.Rxb4#
- 1...Kxa4!
- 1...Kc4
- 1.Qg7?
- threat
- 2.Sd2#
- 2.Qb2#
- 1...Sc3
- 2.Sd2#
- 2.Qxc3#
- 1...Sf6!
- threat
- 1.Qd8?
- threat
- 2.Qxd5#
- 1...Sxe3
- 2.Qd3#
- 1...Sxb6
- 2.Qxb6#
- 2.Qd3#
- 1...Sc3
- 2.Sd2#
- 1...Sb4
- 2.Sd4#
- 1...Sf6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sf4!
- threat
- 1.Qh8?
- threat
- 2.Sd2#
- 2.Qb2#
- 1...Sc3
- 2.Sd2#
- 2.Qxc3#
- 1...Sf6!
- threat
- 1.b7?
- 1...Sxe3
- 2.Rxf3#
- 2.b8Q#
- 2.b8R#
- 1...Sf4
- 2.Rxf4#
- 2.b8Q#
- 2.b8R#
- 1...Sc3
- 2.Sd2#
- 1...Sb4
- 2.Sd4#
- 1...Sf6
- 2.Rxf6#
- 2.b8Q#
- 2.b8R#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 2.b8Q#
- 2.b8R#
- 1...Sb6!
- 1...Sxe3
- 1.Ke1?
- Keys
- 1.Bf1!
- 1...Sxe3
- 2.Rxf3#
- 1...Sxb6
- 2.Rb7#
- 1...Sc3
- 2.Sd2#
- 1...Sb4
- 2.Sd4#
- 1...Sf4
- 2.Rxf4#
- 1...Sf6
- 2.Rxf6#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 1...Sxe3
- 1.Bf1!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(f);SBLOCK::S(E)
- S(f);OGATEB,XP(C)::QAB(L)+R(K),XP(e)
- S(f);SBLOCK::S(J)
- S(f);OGATEB::QAB(L)+R(K),XS(f)
- S(f);OGATEB,XP(I)::QAB(L)+R(K)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- S(f);OGATEB,XP(C)::QAB(L)+R(K),XP(e)
- S(f);OGATEB,XP(I)::QAB(L)+R(K)
- S(f);SBLOCK::S(E)
- S(f);SBLOCK::S(J)
- S(f);OGATEB::QAB(L)+R(K),XS(f)
- Refutation
- P(e);CHECK
- Try
- K(B);S_FLIGHT
- Vars
- S(f);OGATEB,XP(C)::QAB(L)+R(K),XP(e)
- S(f);OGATEB,XP(I)::QAB(L)+R(K)
- S(f);SBLOCK::S(E)
- S(f);SBLOCK::S(J)
- S(f);OGATEB::QAB(L)+R(K),XS(f)
- Refutation
- P(e);CHECK
- Try
- K(B);P-FLIGHT,XP(e)
- Vars
- S(f);OGATEB,XP(I)::QAB(L)+R(K)
- S(f);SBLOCK::S(E)
- S(f);SBLOCK::S(J)
- S(f);OGATEB::QAB(L)+R(K),XS(f)
- Refutation
- S(f);XP(C)
- Try
- K(B);S_FLIGHT
- Vars
- S(f);OGATEB,XP(C)::QAB(L)+R(K),XP(e)
- S(f);OGATEB,XP(I)::QAB(L)+R(K)
- S(f);SBLOCK::S(E)
- S(f);SBLOCK::S(J)
- S(f);OGATEB::QAB(L)+R(K),XS(f)
- Refutation
- P(e);
- Try
- B(H);
- Vars
- S(f);OGATEB,XP(C)::QAB(L)+R(K),XP(e)
- S(f);OGATEB,XP(I)::QAB(L)+R(K)
- S(f);SBLOCK::S(E)
- S(f);SBLOCK::S(J)
- S(f);OGATEB::QAB(L)+R(K),XS(f)
- Refutation
- P(e);XB(H)
- Try
- B(H);
- Vars
- S(f);OGATEB,XP(I)::QAB(L)+R(K)
- S(f);SBLOCK::S(E)
- S(f);SBLOCK::S(J)
- S(f);OGATEB::QAB(L)+R(K),XS(f)
- Refutation
- S(f);XP(C)
- Try
- B(H);
- Vars
- S(f);OGATEB,XP(C)::QAB(L)+R(K),XP(e)
- S(f);SBLOCK::S(E)
- S(f);SBLOCK::S(J)
- S(f);OGATEB::QAB(L)+R(K),XS(f)
- Refutation
- S(f);XP(I)
- Try
- R(F);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::R1(F),XS(f)
- Refutation
- K(d);S_FLIGHT,XP(D)
- Try
- Q(L);
- Threat
- DUALS(2)
- Refutation
- S(f);
- Try
- Q(L);
- Threat
- QAB(L),XS(f)
- Vars
- S(f);OGATE,XP(C)::QAR2(L)
- S(f);SBLOCK::S(E)
- S(f);SBLOCK::S(J)
- S(f);OGATE::QAR2(L)
- Refutation
- S(f);
- Try
- Q(L);
- Threat
- DUALS(2)
- Refutation
- S(f);
- Try
- P(I);
- Vars
- S(f);SBLOCK::S(E)
- S(f);SBLOCK::S(J)
- S(f);OGATEB::QAB(L)+R(K),XS(f)
- Refutation
- S(f);
- Try
- Actual
- B(H);
- Vars
- S(f);OGATEB,XP(C)::QAB(L)+R(K),XP(e)
- S(f);OGATEB,XP(I)::QAB(L)+R(K)
- S(f);SBLOCK::S(E)
- S(f);SBLOCK::S(J)
- S(f);OGATEB::QAB(L)+R(K),XS(f)
Developed and maintained by Brian Stephenson.
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