MESON Chess Problem Database
Problem Display
PID: 19048 (2q5/p1Pp3p/r4Bp1/Np2R3/b2kNPQ1/7K/4PP2/4n2B w - - 0 1)
Chandler, Guy Wills
Sydney Morning Herald, 1911
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxa5
- 2.Rc5#
- 1...Sd3
- 2.e3#
- 1...d5
- 2.Re6#
- 1...d6
- 2.Rxb5#
- 2.Rc5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 1...Rxa5
- Tries
- 1.Re7+?
- 1...Kd5
- 2.Qg5#
- 1...Rxf6!
- 1...Kd5
- 1.Re8+?
- 1...Kd5
- 2.Qg5#
- 1...Rxf6!
- 1...Kd5
- 1.Qf3?
- threat
- 2.Qc3#
- 2.Qe3#
- 1...d5+
- 2.Re6#
- 1...d6+
- 2.Rf5#
- 1...Qxc7
- 2.Qe3#
- 1...Rxa5
- 2.Rc5#
- 2.Qc3#
- 1...Rc6
- 2.Qe3#
- 1...Sc2
- 2.Qc3#
- 2.Qd3#
- 1...Sg2
- 2.Qc3#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 2.Qe3#
- 2.e3#
- 1...b4
- 2.Qe3#
- 1...Sxf3!
- threat
- 1.Qf5?
- threat
- 2.Rd5#
- 2.Re6#
- 1...Qxc7
- 2.Rd5#
- 1...Rxa5
- 2.Rc5#
- 1...Rxf6
- 2.Rd5#
- 1...Qd8
- 2.Rd5#
- 1...Qf8
- 2.Rd5#
- 1...Qh8
- 2.Rd5#
- 1...Re6
- 2.Rd5#
- 2.Rxe6#
- 1...Sd3
- 2.Rd5#
- 2.e3#
- 1...Sf3
- 2.Rd5#
- 1...d5
- 2.Rxd5#
- 2.Re6#
- 1...gxf5!
- threat
- 1.Qxd7+?
- 1...Rd6
- 2.Rxb5#
- 2.Rc5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 1...Qxd7+!
- 1...Rd6
- 1.Qg3?
- threat
- 2.Qc3#
- 2.Qe3#
- 1...d5+
- 2.Re6#
- 1...d6+
- 2.Rf5#
- 1...Qxc7
- 2.Qe3#
- 1...Rxa5
- 2.Rc5#
- 2.Qc3#
- 1...Rc6
- 2.Qe3#
- 1...Sc2
- 2.Qc3#
- 2.Qd3#
- 1...Sg2
- 2.Qc3#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 2.Qe3#
- 2.e3#
- 1...b4
- 2.Qe3#
- 1...Sf3!
- threat
- 1.Qg5?
- threat
- 2.Rd5#
- 2.Re6#
- 1...d5+
- 2.Re6#
- 1...d6+
- 2.Rf5#
- 2.Re6#
- 1...Qxc7
- 2.Rd5#
- 1...Rxa5
- 2.Rc5#
- 1...Rxf6
- 2.Rd5#
- 1...Qd8
- 2.Rd5#
- 1...Qf8
- 2.Rd5#
- 1...Qh8
- 2.Rd5#
- 1...Re6
- 2.Rd5#
- 2.Rxe6#
- 1...Sg2
- 2.Re6#
- 1...Sd3
- 2.Rd5#
- 2.e3#
- 1...Sf3!
- threat
- 1.Re7+?
- Keys
- 1.Qg1!
- threat
- 2.f3#
- 1...d5+
- 2.Re6#
- 1...d6+
- 2.Rf5#
- 1...Rxa5
- 2.Rc5#
- 1...Sf3
- 2.Qa1#
- 1...Sc2
- 2.Qd1#
- 1...Sg2
- 2.Qa1#
- 1...Sd3
- 2.e3#
- threat
- 1.Qg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD,XS(H)::B(J)+R(I)
- S(a);SBLOCK::P(B)
- P(h);P_PINQ(G),SBLOCK::B(J)+R(I)
- Tries
- Try
- R(I);CHECK
- Vars
- K(c);P-FLIGHT::QAR(G)
- Refutation
- R(e);XB(J)
- Try
- R(I);CHECK
- Vars
- K(c);P-FLIGHT::QAR(G)
- Refutation
- R(e);XB(J)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- P(h);CHECK,SBLOCK::B(J)+R(I)
- P(h);CHECK,S_CUTR(e)::B(J)+R(I)
- Q(j);XP(K)::QAB1(G)
- R(e);::QAB1(G)
- P(d);::QAB1(G)
- Refutation
- S(a);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(j);XP(K)::B(J)+R(I),DCHECK
- R(e);N_GUARD,XS(H)::B(J)+R(I)
- R(e);XB(J)::R1(I)
- Q(j);::B(J)+R(I),DCHECK
- S(a);::B(J)+R(I),DCHECK
- Refutation
- P(f);XQ(G)
- Try
- Q(G);CHECK,P_SPINQ(G),XP(h)
- Refutation
- Q(j);CHECK,XQ(G)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- P(h);CHECK,SBLOCK::B(J)+R(I)
- P(h);CHECK,S_CUTR(e)::B(J)+R(I)
- Q(j);XP(K)::QAB1(G)
- R(e);::QAB1(G)
- P(d);::QAB1(G)
- Refutation
- S(a);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- P(h);CHECK::B(J)+R(I)
- Q(j);XP(K)::B(J)+R(I),DCHECK
- R(e);N_GUARD,XS(H)::B(J)+R(I)
- R(e);XB(J)::R1(I)
- Q(j);::B(J)+R(I),DCHECK
- S(a);::B(J)+R(I)
- Refutation
- S(a);
- Try
- Actual
- Q(G);
- Threat
- QAB(G)+P(C)
- Vars
- P(h);CHECK,SBLOCK::B(J)+R(I)
- P(h);CHECK,S_CUTR(e)::B(J)+R(I)
- R(e);N_GUARD,XS(H)::B(J)+R(I)
- S(a);OGATE::QAB(G)
- S(a);OGATE::QAR(G)
- S(a);SBLOCK::P(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).