MESON Chess Problem Database
Problem Display
PID: 202849 (R2r2B1/5N2/2p2P2/3P1q2/PPk1Pp2/K1p5/2PrN3/3R1Q2 w - - 0 1)
Colaneri, Bruno
Sinfonie Scacchistiche, 2017
#2
13 + 7
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qh3
- 2.Se5#
- 1...Qg4
- 2.Se5#
- 1...Qg6
- 2.Se5#
- 1...Qd7
- 2.Se5#
- 1...Qh7
- 2.Se5#
- 1...Qc8
- 2.Se5#
- 1...Qxd5
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Rxc2
- 2.Rd4#
- 1...Rxe2
- 2.Qxe2#
- 1...Rd3
- 2.cxd3#
- 1...Rd4
- 2.Sxd4#
- 2.Rxd4#
- 1...R2xd5
- 2.Sd4#
- 1...R8xd5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Rxa8
- 2.Sd6#
- 1...Rb8
- 2.Sd6#
- 1...Rc8
- 2.Sd6#
- 1...Re8
- 2.Sd6#
- 1...Rf8
- 2.Sd6#
- 1...Rxg8
- 2.Sd6#
- 1...Qh3
- Tries
- 1.Sc1+?
- 1...Re2
- 2.Qxe2#
- 1...Rd3
- 2.Qxd3#
- 1...Kd4!
- 1...Re2
- 1.Sg1+?
- 1...Re2
- 2.Qxe2#
- 1...Rd3
- 2.Qxd3#
- 1...Kd4!
- 1...Re2
- 1.Sg3+?
- 1...Re2
- 2.Qxe2#
- 1...Rd3
- 2.Qxd3#
- 1...Kd4!
- 1...Re2
- 1.Sd4+?
- 1...Re2
- 2.Qxe2#
- 1...Rd3
- 2.Qxd3#
- 1...Kxd4!
- 1...Re2
- 1.Sxf4+?
- 1...Re2
- 2.Qxe2#
- 1...Rd3
- 2.Qxd3#
- 1...Kd4!
- 1...Re2
- 1.Qg1?
- threat
- 2.Qc5#
- 1...Qxd5
- 2.Se5#
- 1...R8xd5
- 2.Sd6#
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 1...c5
- 2.Qxc5#
- 1...R2xd5!
- threat
- 1.Qf2?
- threat
- 2.Qc5#
- 1...Qxd5
- 2.Se5#
- 1...R8xd5
- 2.Sd6#
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 1...c5
- 2.Qxc5#
- 1...R2xd5!
- threat
- 1.dxc6?
- threat
- 2.Se5#
- 2.Sd6#
- 1...Qe6
- 2.Se5#
- 1...Qd5
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 2.Sd6#
- 1...R2d5
- 2.Sd4#
- 1...R2d6
- 2.Sd4#
- 2.Se5#
- 2.Sxd6#
- 1...R8d5
- 2.Sd6#
- 1...R8d6
- 2.Se5#
- 2.Sxd6#
- 1...Rxg8!
- threat
- 1.d6?
- threat
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Rd5
- 2.Sd4#
- 1...Rxg8!
- threat
- 1.Sc1+?
- Keys
- 1.Ra5!
- threat
- 2.Rc5#
- 1...Qxd5
- 2.Se5#
- 1...R2xd5
- 2.Sd4#
- 1...R8xd5
- 2.Sd6#
- 1...c5
- 2.Rxc5#
- threat
- 1.Ra5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 17
- Sets
- Q(e);N_GUARD::S(K)
- Q(e);N_GUARD,XP(I)::S(K)
- Q(e);N_GUARD::S(K),XQ(e)
- R(a);OGATE,XP(C)::R1(A)
- R(a);OGATE,P_SPINR(a),XS(D)::QAB(B),XR(a)
- R(a);OGATE::P(C),XR(a)
- R(a);N_GUARD,XP(I)::QAB(B)+S(D)
- R(g);N_GUARD,XP(I)::S(K)
- R(g);N_GUARD::S(K),XR(g)
- R(g);N_GUARD,P_PINP(F),XR(L)::S(K)
- R(g);N_GUARD::S(K)
- R(g);N_GUARD,XB(M)::S(K)
- Tries
- Try
- S(D);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::QAB(B),XR(a)
- R(a);N_GUARD,P_SPINR(a)::QAB1(B),XR(a)
- Refutation
- K(c);P-FLIGHT,P_SPINR(a)
- Try
- S(D);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::QAB(B),XR(a)
- R(a);N_GUARD,P_SPINR(a)::QAB1(B),XR(a)
- Refutation
- K(c);P-FLIGHT,P_SPINR(a)
- Try
- S(D);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::QAB(B),XR(a)
- R(a);N_GUARD,P_SPINR(a)::QAB1(B),XR(a)
- Refutation
- K(c);P-FLIGHT,P_SPINR(a)
- Try
- S(D);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::QAB(B),XR(a)
- R(a);N_GUARD,P_SPINR(a)::QAB1(B),XR(a)
- Refutation
- K(c);P-FLIGHT,P_SPINR(a),XS(D)
- Try
- S(D);CHECK,XP(d)
- Vars
- R(a);N_GUARD,P_SPINR(a)::QAB(B),XR(a)
- R(a);N_GUARD,P_SPINR(a)::QAB1(B),XR(a)
- Refutation
- K(c);P-FLIGHT,P_SPINR(a)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- Q(e);N_GUARD,XP(I)::S(K)
- R(g);N_GUARD,XP(I)::S(K)
- P(f);::QAR1(B),XP(f)
- Refutation
- R(a);XP(I)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- Q(e);N_GUARD,XP(I)::S(K)
- R(g);N_GUARD,XP(I)::S(K)
- P(f);::QAR1(B),XP(f)
- Refutation
- R(a);XP(I)
- Try
- P(I);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(e);::S(K)
- R(a);N_GUARD::QAB(B)+S(D)
- R(g);::S(K)
- Refutation
- R(g);XB(M)
- Try
- P(I);
- Threat
- B(M)+S(K),DCHECK
- Vars
- Q(e);::B(M)+S(K),DCHECK,XQ(e)
- R(a);N_GUARD::QAB(B)+S(D)
- Refutation
- R(g);XB(M)
- Try
- Actual
- R(L);
- Threat
- R1(L)
- Vars
- Q(e);N_GUARD,XP(I)::S(K)
- R(a);N_GUARD,XP(I)::QAB(B)+S(D)
- R(g);N_GUARD,XP(I)::S(K)
- P(f);::R1(L),XP(f)
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).