MESON Chess Problem Database
Problem Display
PID: 247646 (2r1bn2/5r1n/3P3Q/R1p1P1q1/PP1k4/R4pN1/BN1p4/B2K4 w - - 0 1)
Andrade, Barry Jack da Costa
British Chess Magazine, 1932
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Kxe5
- 2.Sd3#
- 1...Qe3
- 2.Sd3#
- 2.Qxe3#
- 1...Qh4
- 2.Sd3#
- 2.Qe3#
- 1...Qf6
- 2.Sd3#
- 2.Qe3#
- 1...Qe7
- 2.Sd3#
- 2.Qe3#
- 1...Qd8
- 2.Sd3#
- 2.Qe3#
- 1...Qxg3
- 2.Qe3#
- 1...Qg4
- 2.Sd3#
- 2.Qe3#
- 1...Qxe5
- 2.Sd3#
- 2.Rd3#
- 2.Qxd2#
- 1...Qf5
- 2.Sd3#
- 2.Qe3#
- 1...Qh5
- 2.Sd3#
- 2.Qe3#
- 1...Qg6
- 2.Sd3#
- 2.Qe3#
- 1...Qg7
- 2.Sd3#
- 2.Qe3#
- 1...Qg8
- 2.Sd3#
- 2.Qe3#
- 1...Bxa4+
- 2.Sxa4#
- 1...cxb4
- 2.Sc4#
- 2.Rd3#
- 2.Rd5#
- 1...c4
- 2.Sxc4#
- 1...Kxe5
- Tries
- 1.Rxf3?
- threat
- 2.Sd3#
- 1...Bxa4+
- 2.Sxa4#
- 1...Kxe5
- 2.Sd3#
- 1...Qxg3
- 2.Qe3#
- 1...cxb4
- 2.Sc4#
- 2.Rd3#
- 2.Rd5#
- 1...Qe3
- 2.Qxe3#
- 1...c4
- 2.Sxc4#
- 1...Rxf3!
- threat
- 1.Rxc5?
- threat
- 2.Sc4#
- 2.Rd3#
- 2.Rd5#
- 1...Bxa4+
- 2.Sxa4#
- 1...Qxg3
- 2.Qe3#
- 1...Qxe5
- 2.Sd3#
- 2.Sc4#
- 2.Rd3#
- 2.Qxd2#
- 1...Qe3
- 2.Sd3#
- 2.Rd5#
- 2.Qxe3#
- 1...Qf5
- 2.Sd3#
- 2.Sc4#
- 2.Rd5#
- 2.Qe3#
- 1...Qg6
- 2.Sd3#
- 2.Sc4#
- 2.Rd5#
- 2.Qe3#
- 1...Bb5
- 2.Sc4#
- 2.Rd5#
- 1...Bc6
- 2.Sc4#
- 2.Rd3#
- 1...Sf6
- 2.Sc4#
- 2.Rd3#
- 1...Rxc5!
- threat
- 1.Qxg5?
- threat
- 2.Sd3#
- 2.Rd3#
- 2.Qe3#
- 1...Bxa4+
- 2.Sxa4#
- 1...cxb4
- 2.Sc4#
- 2.Rd3#
- 2.Rd5#
- 2.Qxd2#
- 2.Qe3#
- 1...Rf5
- 2.Sd3#
- 2.Qe3#
- 1...Rf4
- 2.Rd3#
- 2.Qxf4#
- 1...Bb5
- 2.Sd3#
- 2.Qe3#
- 1...c4
- 2.Sxc4#
- 2.Qxd2#
- 2.Qe3#
- 1...Sxg5!
- threat
- 1.Qe6?
- threat
- 2.Sc4#
- 2.Rd3#
- 2.Qd5#
- 1...Bxa4+
- 2.Sxa4#
- 1...Qxg3
- 2.Qd5#
- 1...Qxe5
- 2.Sc4#
- 2.Rd3#
- 2.Qc4#
- 1...Qe3
- 2.Sd3#
- 2.Qd5#
- 1...Qf5
- 2.Sc4#
- 2.Qd5#
- 1...Qg6
- 2.Sc4#
- 2.Qd5#
- 1...Bb5
- 2.Sc4#
- 2.Qd5#
- 1...Bc6
- 2.Sc4#
- 2.Rd3#
- 1...Sf6
- 2.Sc4#
- 2.Rd3#
- 1...c4
- 2.Sxc4#
- 2.Rd5#
- 2.Qd5#
- 1...Sxe6!
- threat
- 1.Rxf3?
- Keys
- 1.Kc2!
- threat
- 2.Sd1#
- 1...Qf5+
- 2.Sd3#
- 1...Qg6+
- 2.Sd3#
- 1...Bxa4+
- 2.Sxa4#
- 1...d1Q+
- 2.Sxd1#
- 1...d1B+
- 2.Sxd1#
- 1...cxb4+
- 2.Sc4#
- 1...Kxe5
- 2.Sd3#
- 1...Qxg3
- 2.Qe3#
- 1...d1S
- 2.Sxd1#
- 1...d1R
- 2.Sxd1#
- 1...Qe3
- 2.Sd3#
- 2.Qxe3#
- 1...c4
- 2.Sxc4#
- threat
- 1.Kc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- K(c);P_SPINP(d),S_FLIGHT,XP(J)::B(A)+S(D),DCHECK
- Q(e);OGATE,XS(F)::QAB1(L)
- B(i);CHECK,XP(G)::B(A)+S(D),XB(i)
- P(d);::B(A)+S(D),XP(d)
- Tries
- Try
- R(E);XP(b)
- Threat
- B(A)+S(D)
- Vars
- B(i);CHECK,XP(G)::B(A)+S(D),XB(i)
- K(c);P_SPINP(d),S_FLIGHT,XP(J)::B(A)+S(D),DCHECK
- Q(e);OGATE,XS(F)::QAB1(L)
- Q(e);OGATE::QAB1(L),XQ(e)
- P(d);::B(A)+S(D),XP(d)
- Refutation
- R(f);XR(E)
- Try
- R(I);XP(d)
- Threat
- DUALS(3)
- Vars
- B(i);CHECK,XP(G)::B(A)+S(D),XB(i)
- Q(e);OGATE,XS(F)::QAB1(L)
- Refutation
- R(h);XR(I)
- Try
- Q(L);XQ(e)
- Threat
- DUALS(3)
- Vars
- B(i);CHECK,XP(G)::B(A)+S(D),XB(i)
- Refutation
- S(g);XQ(L)
- Try
- Q(L);
- Threat
- DUALS(3)
- Vars
- B(i);CHECK,XP(G)::B(A)+S(D),XB(i)
- Q(e);XS(F)::QAR1(L)
- Refutation
- S(j);XQ(L)
- Try
- Actual
- K(B);S_FLIGHT
- Threat
- B(A)+S(D)
- Vars
- Q(e);CHECK::B(A)+S(D)
- B(i);CHECK,XP(G)::B(A)+S(D),XB(i)
- P(a);CHECK::B(A)+S(D),XQ(a)
- P(a);CHECK::B(A)+S(D),XB(a)
- P(d);CHECK,XP(H)::B(A)+S(D)
- K(c);P_SPINP(d),S_FLIGHT,XP(J)::B(A)+S(D),DCHECK
- Q(e);OGATE,XS(F)::QAB1(L)
- P(a);::B(A)+S(D),XS(a)
- P(a);::B(A)+S(D),XR(a)
- P(d);::B(A)+S(D),XP(d)
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).