MESON Chess Problem Database
Problem Display
PID: 238794 (nNR1N3/1bqp2P1/p2Pp1nK/3k4/Q2B3R/1p6/3P4/1r6 w - - 0 1)
Janevski, Zivko
Schach, 2009
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Qc4#
- 2.Qxa5#
- 1...Qb6
- 2.Qc4#
- 1...Qxd6
- 2.Sf6#
- 2.Qc4#
- 1...Qxb8
- 2.Rc5#
- 2.Qc4#
- 2.Qa5#
- 1...Qd8
- 2.Rc5#
- 2.Qc4#
- 1...Qc4
- 2.Qxc4#
- 1...Qc5
- 2.Rxc5#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Qa5
- Tries
- 1.Sxd7?
- threat
- 2.Sdf6#
- 1...Qxd7
- 2.Rc5#
- 2.Qc4#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Qd8
- 2.Rc5#
- 2.Qc4#
- 1...Rf1!
- threat
- 1.Sxc7+?
- 1...Kxd6
- 2.Qxd7#
- 2.Qa3#
- 2.Qb4#
- 1...Sxc7!
- 1...Kxd6
- 1.Ba1?
- threat
- 2.Qd4#
- 1...Kc5
- 2.Qa5#
- 1...Qb6
- 2.Qc4#
- 2.Qe4#
- 1...Qc3
- 2.Qe4#
- 1...Qc4
- 2.Qxc4#
- 1...Qc5
- 2.Qe4#
- 1...e5!
- threat
- 1.Bg1?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Ke5
- 2.Rh5#
- 1...Rxg1
- 2.Qd4#
- 1...Sxh4
- 2.Qd4#
- 1...Qb6
- 2.Qe4#
- 1...Qc2
- 2.Qd4#
- 1...Qc3
- 2.Qe4#
- 1...Qc5
- 2.Rxc5#
- 2.Qe4#
- 1...Re1
- 2.Qd4#
- 1...Sf4
- 2.Qd4#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Qc4!
- threat
- 1.Bb2?
- threat
- 2.Qd4#
- 1...Kc5
- 2.Qa5#
- 1...Qb6
- 2.Qc4#
- 2.Qe4#
- 1...Qc3
- 2.Qe4#
- 1...Qc4
- 2.Qxc4#
- 1...Qc5
- 2.Qe4#
- 1...e5!
- threat
- 1.Bf2?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Ke5
- 2.Rh5#
- 1...Sxh4
- 2.Qd4#
- 1...Qb6
- 2.Qe4#
- 1...Qc2
- 2.Qd4#
- 1...Qc3
- 2.Qe4#
- 1...Qc5
- 2.Rxc5#
- 2.Qe4#
- 1...Re1
- 2.Qd4#
- 1...Sf4
- 2.Qd4#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Qc4!
- threat
- 1.Bc3?
- threat
- 2.Qd4#
- 1...Kc5
- 2.Qa5#
- 1...Qxc3
- 2.Qe4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb6
- 2.Qc4#
- 2.Qe4#
- 1...Qc5
- 2.Qe4#
- 1...e5!
- threat
- 1.Be3?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Ke5
- 2.Rh5#
- 1...Sxh4
- 2.Qd4#
- 1...Qb6
- 2.Qe4#
- 1...Qc2
- 2.Qd4#
- 1...Qc3
- 2.Qe4#
- 1...Qc5
- 2.Rxc5#
- 2.Qe4#
- 1...Sf4
- 2.Qd4#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Qc4!
- threat
- 1.Be5?
- threat
- 2.Qd4#
- 1...Kc5
- 2.Qa5#
- 1...Kxe5
- 2.Rh5#
- 1...Qb6
- 2.Qe4#
- 1...Qc3
- 2.Qe4#
- 1...Qc5
- 2.Qe4#
- 1...Qc4!
- threat
- 1.Bb6?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Ke5
- 2.Rh5#
- 1...Qxb6
- 2.Qe4#
- 1...Sxh4
- 2.Qd4#
- 1...Sxb6
- 2.Qd4#
- 1...Qc2
- 2.Qd4#
- 1...Qc3
- 2.Qe4#
- 1...Qc5
- 2.Rxc5#
- 2.Qe4#
- 1...Re1
- 2.Qd4#
- 1...Sf4
- 2.Qd4#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Qc4!
- threat
- 1.Bf6?
- threat
- 2.Qd4#
- 1...Kc5
- 2.Qa5#
- 1...Qc4
- 2.Qxc4#
- 1...Qb6
- 2.Qc4#
- 2.Qe4#
- 1...Qc3
- 2.Qe4#
- 1...Qc5
- 2.Qe4#
- 1...e5!
- threat
- 1.Ba7?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Ke5
- 2.Rh5#
- 1...Sxh4
- 2.Qd4#
- 1...Sb6
- 2.Qd4#
- 1...Qb6
- 2.Qe4#
- 1...Qc2
- 2.Qd4#
- 1...Qc3
- 2.Qe4#
- 1...Qc5
- 2.Rxc5#
- 2.Qe4#
- 1...Re1
- 2.Qd4#
- 1...Sf4
- 2.Qd4#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Qc4!
- threat
- 1.Qxb3+?
- 1...Qc4
- 2.Rc5#
- 2.Qxc4#
- 2.Qf3#
- 1...Rxb3!
- 1...Qc4
- 1.Qb5+?
- 1...Qc5
- 2.Rxc5#
- 2.Qxc5#
- 1...axb5!
- 1...Qc5
- 1.Qb4?
- threat
- 2.Sf6#
- 1...e5
- 2.g8Q#
- 2.g8B#
- 1...Qd8
- 2.Rc5#
- 2.Qc5#
- 2.Qc4#
- 2.Qxb7#
- 1...Qc5
- 2.Rxc5#
- 2.Qxc5#
- 1...Rf1!
- threat
- 1.Sxd7?
- Keys
- 1.Bc5!
- threat
- 2.Qd4#
- 1...Kxc5
- 2.Qa5#
- 1...Ke5
- 2.Rh5#
- 1...Qxc5
- 2.Qe4#
- 1...e5
- 2.Qc4#
- threat
- 1.Bc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(h);N_GUARD::QAB1(B)
- Q(h);N_GUARD::QAB1(B),XQ(h)
- Q(h);OGATE::R1(I),XQ(h)
- P(e);::P=Q
- Tries
- Try
- S(H);XP(i)
- Threat
- S(H)
- Vars
- P(e);::P=Q
- Refutation
- R(a);
- Try
- S(J);CHECK,XQ(h)
- Refutation
- S(j);XS(J)
- Try
- B(C);
- Threat
- QAR1(B)
- Vars
- K(c);P-FLIGHT,P_SPINQ(h)::QAR2(B)
- Q(h);::QAB1(B)
- Q(h);N_GUARD::QAB1(B),XQ(h)
- Refutation
- P(e);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT::R(D)
- R(a);XB(C)::QAR1(B)
- S(f);XR(D)::QAR1(B)
- Q(h);::QAB1(B)
- Q(h);::QAR1(B)
- R(a);::QAR1(B)
- S(f);::QAR1(B)
- P(e);SBLOCK::P=Q
- Refutation
- Q(h);
- Try
- B(C);
- Threat
- QAR1(B)
- Vars
- K(c);P-FLIGHT,P_SPINQ(h)::QAR2(B)
- Q(h);::QAB1(B)
- Q(h);N_GUARD::QAB1(B),XQ(h)
- Refutation
- P(e);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT::R(D)
- S(f);XR(D)::QAR1(B)
- Q(h);::QAB1(B)
- Q(h);::QAR1(B)
- R(a);::QAR1(B)
- S(f);::QAR1(B)
- P(e);SBLOCK::P=Q
- Refutation
- Q(h);
- Try
- B(C);
- Threat
- QAR1(B)
- Vars
- K(c);P-FLIGHT,P_SPINQ(h)::QAR2(B)
- Q(h);XB(C)::QAB1(B)
- Q(h);N_GUARD::QAB1(B),XQ(h)
- Q(h);::QAB1(B)
- Refutation
- P(e);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT::R(D)
- S(f);XR(D)::QAR1(B)
- Q(h);::QAB1(B)
- Q(h);::QAR1(B)
- S(f);::QAR1(B)
- P(e);SBLOCK::P=Q
- Refutation
- Q(h);
- Try
- B(C);
- Threat
- QAR1(B)
- Vars
- K(c);P-FLIGHT,P_SPINQ(h)::QAR2(B)
- K(c);OGATEB,P-FLIGHT,XB(C)::R(D)
- Q(h);::QAB1(B)
- Refutation
- Q(h);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT::R(D)
- Q(h);XB(C)::QAB1(B)
- S(f);XR(D)::QAR1(B)
- S(j);XB(C)::QAR1(B)
- Q(h);::QAR1(B)
- Q(h);::QAB1(B)
- R(a);::QAR1(B)
- S(f);::QAR1(B)
- P(e);SBLOCK::P=Q
- Refutation
- Q(h);
- Try
- B(C);
- Threat
- QAR1(B)
- Vars
- K(c);P-FLIGHT,P_SPINQ(h)::QAR2(B)
- Q(h);N_GUARD::QAB1(B),XQ(h)
- Q(h);::QAB1(B)
- Refutation
- P(e);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT::R(D)
- S(f);XR(D)::QAR1(B)
- S(j);::QAR1(B)
- Q(h);::QAB1(B)
- Q(h);::QAR1(B)
- R(a);::QAR1(B)
- S(f);::QAR1(B)
- P(e);SBLOCK::P=Q
- Refutation
- Q(h);
- Try
- Q(B);CHECK,XP(b)
- Refutation
- R(a);XQ(B)
- Try
- Q(B);CHECK
- Refutation
- P(d);XQ(B)
- Try
- Q(B);
- Threat
- S(J)
- Vars
- P(e);::P=Q
- Refutation
- R(a);
- Try
- Actual
- B(C);
- Threat
- QAR1(B)
- Vars
- K(c);OGATEB,P-FLIGHT,P_SPINQ(h),XB(C)::QAR2(B)
- K(c);P-FLIGHT::R(D)
- Q(h);XB(C)::QAB1(B)
- P(e);SBLOCK::QAB1(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).