MESON Chess Problem Database
Problem Display
PID: 270014 (B1N5/8/3p2pK/4k3/RnQ3PB/3p1p1P/1P3P2/4r3 w - - 0 1)
Uris, Miguel
Tehtavaniekka, 2022
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qe4#
- 1...Rb1
- 2.Qe4#
- 1...Rc1
- 2.Qe4#
- 1...Rd1
- 2.Qe4#
- 1...Rf1
- 2.Qe4#
- 1...Rg1
- 2.Qe4#
- 1...Rh1
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Sa2
- 2.Qd5#
- 1...Sc2
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Ra1
- Tries
- 1.Kg5?
- threat
- 2.Bg3#
- 1...Sd5
- 2.Qxd5#
- 1...Rg1
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...d5!
- threat
- 1.Kxg6?
- threat
- 2.Bg3#
- 2.Bf6#
- 1...Re4
- 2.Qxe4#
- 1...Sd5
- 2.Qxd5#
- 1...Rg1
- 2.Bf6#
- 2.Qe4#
- 1...d5!
- threat
- 1.Kg7?
- threat
- 2.Bg3#
- 2.Bf6#
- 1...Re4
- 2.Qxe4#
- 1...Sd5
- 2.Qxd5#
- 1...Rg1
- 2.Bf6#
- 2.Qe4#
- 1...g5
- 2.Bg3#
- 1...d5!
- threat
- 1.Sb6?
- threat
- 2.Sd7#
- 1...Re4
- 2.Qxe4#
- 1...Sd5
- 2.Qxd5#
- 1...d5!
- threat
- 1.Rxb4?
- threat
- 2.Qd5#
- 1...Re4
- 2.Qxe4#
- 1...d5
- 2.Qxd5#
- 1...g5!
- threat
- 1.Qb5+?
- 1...Kd4
- 2.Rxb4#
- 2.Qd5#
- 1...Kf4
- 2.Bg3#
- 2.Bg5#
- 2.Qg5#
- 1...Ke6
- 2.Qe8#
- 1...Sd5
- 2.Qxd5#
- 1...d5!
- 1...Kd4
- 1.Qd5+?
- 1...Kf4
- 2.Bg3#
- 2.Bg5#
- 2.Qg5#
- 1...Sxd5!
- 1...Kf4
- 1.Qe6+?
- 1...Kd4
- 2.Qd5#
- 1...Kf4
- 2.Bg3#
- 2.Bg5#
- 2.Qf6#
- 1...Kxe6!
- 1...Kd4
- 1.Qc3+?
- 1...Kf4
- 2.Bg3#
- 2.Bg5#
- 2.Qf6#
- 1...Ke6!
- 1...Kf4
- 1.Qxb4?
- threat
- 2.Qxe1#
- 2.Qxd6#
- 1...Re4
- 2.Qxd6#
- 2.Qxe4#
- 1...g5
- 2.Qxd6#
- 1...Re2
- 2.Qxd6#
- 1...Ra1
- 2.Qxd6#
- 2.Qe4#
- 1...Rb1
- 2.Qxd6#
- 2.Qe4#
- 1...Rc1
- 2.Qxd6#
- 2.Qe4#
- 1...Rd1
- 2.Qxd6#
- 2.Qe4#
- 1...Rf1
- 2.Qxd6#
- 2.Qe4#
- 1...Rg1
- 2.Qxd6#
- 2.Qe4#
- 1...Rh1
- 2.Qxd6#
- 2.Qe4#
- 1...Re3
- 2.Qxd6#
- 1...d2
- 2.Qxd6#
- 1...d5
- 2.Qxe1#
- 2.Qd6#
- 2.Qe7#
- 1...Ke6!
- threat
- 1.Qf4+?
- 1...Kxf4
- 2.Bg3#
- 1...Ke6!
- 1...Kxf4
- 1.Kg5?
- Keys
- 1.Qc7!
- threat
- 2.Qxd6#
- 1...Kd4
- 2.Qc3#
- 1...Kf4
- 2.Bg3#
- 1...Ke6
- 2.Qe7#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 12
- Sets
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- S(d);N_GUARD::QAR1(E)
- S(d);N_GUARD::QAR1(E),XS(d)
- Tries
- Try
- K(H);S_FLIGHT
- Threat
- B(G)
- Vars
- S(d);N_GUARD::QAR1(E),XS(d)
- R(a);N_GUARD,P_PINP(F)::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- Refutation
- P(f);
- Try
- K(H);P-FLIGHT,XP(g)
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::QAR1(E),XR(a)
- S(d);N_GUARD::QAR1(E),XS(d)
- Refutation
- P(f);
- Try
- K(H);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::QAR1(E),XR(a)
- S(d);N_GUARD::QAR1(E),XS(d)
- P(g);::B(G)
- Refutation
- P(f);
- Try
- S(J);
- Threat
- S(J)
- Vars
- R(a);N_GUARD::QAR1(E),XR(a)
- S(d);N_GUARD::QAR1(E),XS(d)
- Refutation
- P(f);
- Try
- R(D);XS(d)
- Threat
- QAR1(E)
- Vars
- R(a);N_GUARD::QAR1(E),XR(a)
- P(f);::QAR1(E),XP(f)
- Refutation
- P(g);
- Try
- Q(E);CHECK
- Vars
- K(e);N_GUARD,P-FLIGHT::QAR2(E)
- S(d);N_GUARD,P_SPINS(d)::QAR1(E),XS(d)
- Refutation
- P(f);P_SPINP(f)
- Try
- Q(E);CHECK
- Refutation
- S(d);XQ(E)
- Try
- Q(E);CHECK
- Vars
- K(e);N_GUARD,P_SPINS(d),S_FLIGHT::QAR1(E)
- Refutation
- K(e);P-FLIGHT,XQ(E)
- Try
- Q(E);CHECK
- Refutation
- K(e);P-FLIGHT
- Try
- Q(E);XS(d)
- Threat
- DUALS(2)
- Vars
- P(g);::QAB1(E),XP(f)
- R(a);::QAB1(E),XP(f)
- P(b);::QAB1(E),XP(f)
- Refutation
- K(e);P-FLIGHT
- Try
- Q(E);CHECK
- Vars
- K(e);N_GUARD,P_SPINS(d),S_FLIGHT,XQ(E)::B(G)
- Refutation
- K(e);P-FLIGHT
- Try
- Actual
- Q(E);P_PINP(f)
- Threat
- QAB1(E),XP(f)
- Vars
- K(e);N_GUARD,N_SPINP(f),P_SPINS(d),S_FLIGHT::QAB1(E)
- K(e);N_GUARD,P_SPINS(d),S_FLIGHT::B(G)
- K(e);N_GUARD,N_SPINP(f),P-FLIGHT::QAR1(E)
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).