MESON Chess Problem Database
Problem Display
PID: 270779 (1BR1K1N1/1p2p2r/N3k1p1/1p4Q1/n1q5/2b5/B2n4/3R4 w - - 0 1)
Guida, Marco
The Problemist, 2023
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Bxd5#
- 2.Qg4#
- 2.Qxd5#
- 1...Bb4
- 2.Qe5#
- 1...Ba5
- 2.Qe5#
- 1...Be5
- 2.Qxe5#
- 1...Sb1
- 2.Sc7#
- 2.Qg4#
- 1...Sf1
- 2.Sc7#
- 2.Qg4#
- 1...Sf3
- 2.Sc7#
- 2.Qg4#
- 1...Se4
- 2.Sc7#
- 2.Qg4#
- 1...Sb2
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sb6
- 2.Sc5#
- 1...bxa6
- 2.Rc6#
- 1...b6
- 2.Rc6#
- 1...Qd5
- Tries
- 1.Bxc4+?
- 1...Sxc4
- 2.Sc7#
- 2.Qg4#
- 2.Qd5#
- 1...bxc4!
- 1...Sxc4
- 1.Bg3?
- threat
- 2.Sc7#
- 1...bxa6
- 2.Rc6#
- 1...Be5
- 2.Qxe5#
- 1...Ba5
- 2.Qe5#
- 1...Sb3!
- threat
- 1.Re1+?
- 1...Be5
- 2.Rxe5#
- 2.Qxe5#
- 1...Se4!
- 1...Be5
- 1.Rxd2?
- threat
- 2.Sc7#
- 2.Qg4#
- 1...Bxd2
- 2.Qe5#
- 1...bxa6
- 2.Rc6#
- 2.Qg4#
- 1...Qd5
- 2.Bxd5#
- 2.Qg4#
- 2.Qxd5#
- 1...Rh4
- 2.Sc7#
- 1...Rh5
- 2.Sc7#
- 1...Rf7
- 2.Sc7#
- 1...Ba5
- 2.Re2#
- 2.Qg4#
- 2.Qe5#
- 2.Qxg6#
- 1...Be5
- 2.Qg4#
- 2.Qxe5#
- 1...Bd4!
- threat
- 1.Rxc4?
- threat
- 2.Re4#
- 2.Rc6#
- 1...Sxc4
- 2.Sc7#
- 2.Qg4#
- 2.Qd5#
- 1...Be5
- 2.Rc6#
- 2.Qxe5#
- 1...Sb3
- 2.Sc7#
- 2.Qg4#
- 2.Qd5#
- 1...Bd4
- 2.Rc6#
- 1...Se4
- 2.Sc7#
- 2.Rxc3#
- 2.Rxa4#
- 2.Rb4#
- 2.Rcd4#
- 2.Rxe4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Qg4#
- 2.Qd5#
- 1...Sc5
- 2.Sxc5#
- 2.Re4#
- 1...bxc4!
- threat
- 1.Rc5?
- threat
- 2.Qg4#
- 1...Sxc5
- 2.Sxc5#
- 1...Sb3
- 2.Sc7#
- 1...Rh4
- 2.Qxe7#
- 1...Rh5
- 2.Qxe7#
- 1...Rf7!
- threat
- 1.Rd8?
- threat
- 2.Sc7#
- 2.Qg4#
- 1...bxa6
- 2.Qg4#
- 1...Rh4
- 2.Sc7#
- 1...Rh5
- 2.Sc7#
- 1...Rf7
- 2.Sc7#
- 1...Ba5
- 2.Qg4#
- 2.Qe5#
- 2.Qxg6#
- 1...Be5
- 2.Qg4#
- 2.Qxe5#
- 1...Sb3!
- threat
- 1.Qc5?
- threat
- 2.Sc7#
- 1...bxa6
- 2.Rc6#
- 1...Qd5
- 2.Qxd5#
- 1...Be5
- 2.Qxe5#
- 1...Ba5
- 2.Qe5#
- 1...Sxc5!
- threat
- 1.Qxg6+?
- 1...Kd5
- 2.Rd8#
- 1...Bf6!
- 1...Kd5
- 1.Bxc4+?
- Keys
- 1.Bf4!
- threat
- 2.Sc7#
- 1...bxa6
- 2.Rc6#
- 1...Be5
- 2.Qxe5#
- 1...Sb3
- 2.Qg4#
- 1...Ba5
- 2.Qe5#
- threat
- 1.Bf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- B(b);N_GUARD::QAR1(C)
- B(b);N_GUARD::QAR1(C),XB(b)
- S(c);N_GUARD::S(D)
- S(c);N_GUARD::S(D),XS(c)
- P(h);N_GUARD,XS(D)::R(F)
- P(h);N_GUARD::R(F)
- Tries
- Try
- B(B);CHECK,XQ(d)
- Refutation
- P(e);XB(B)
- Try
- B(E);
- Threat
- S(D)
- Vars
- P(h);N_GUARD,XS(D)::R(F)
- B(b);N_GUARD::QAR1(C),XB(b)
- B(b);N_GUARD::QAR1(C)
- Refutation
- S(a);N_SPINQ(d)
- Try
- R(A);CHECK
- Refutation
- S(a);P_SPINS(a)
- Try
- R(A);XS(a)
- Threat
- DUALS(2)
- Vars
- B(b);N_GUARD,XR(A)::QAR1(C)
- R(j);::S(D)
- Refutation
- B(b);
- Try
- R(F);XQ(d)
- Threat
- DUALS(2)
- Vars
- B(b);::B(B)+R(F),DCHECK
- Refutation
- P(e);P_SPINP(e),XR(F)
- Try
- R(F);
- Threat
- QAB(C)
- Vars
- S(c);XR(F)::S(D),XS(c)
- S(a);N_SPINQ(d)::S(D)
- R(j);N_GUARD::QAR1(C),XP(i)
- Refutation
- R(j);
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- P(h);XS(D)::QAB(C)
- R(j);::S(D)
- Refutation
- S(a);N_SPINQ(d)
- Try
- Q(C);
- Threat
- S(D)
- Vars
- P(h);N_GUARD,XS(D)::R(F)
- Q(d);N_GUARD::QAB1(C),XQ(d)
- B(b);N_GUARD::QAR1(C),XB(b)
- B(b);N_GUARD::QAR1(C)
- Refutation
- S(c);XQ(C)
- Try
- Q(C);CHECK,XP(g)
- Vars
- K(f);P_SPINS(a),S_CUTB(b),S_FLIGHT::R(F)
- Refutation
- B(b);P_SPINB(b)
- Try
- Actual
- B(E);
- Threat
- S(D)
- Vars
- P(h);N_GUARD,XS(D)::R(F)
- B(b);N_GUARD::QAR1(C),XB(b)
- S(a);N_SPINQ(d)::QAB(C)
- B(b);N_GUARD::QAR1(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).