MESON Chess Problem Database
Problem Display
PID: 41587 (6nr/P4N2/2p3BQ/P2k2N1/K5nR/4P3/P3p1q1/2R5 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Die Schwalbe, 2002
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Be4#
- 1...Qh3
- 2.Be4#
- 1...Qe4+
- 2.Bxe4#
- 1...Qg1
- 2.Be4#
- 1...Qf2
- 2.Be4#
- 1...Qh2
- 2.Be4#
- 1...Qg3
- 2.Be4#
- 1...Sf2
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Se5
- 2.Rd4#
- 1...S4f6
- 2.Rd4#
- 1...S4xh6
- 2.Rd4#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Qf1
- Tries
- 1.Bf5?
- threat
- 2.Be6#
- 2.Qxc6#
- 2.Qd6#
- 2.Qe6#
- 1...Qe4+
- 2.Bxe4#
- 1...S4xh6
- 2.Be6#
- 2.Rd4#
- 1...S8xh6
- 2.Be6#
- 1...Qh2
- 2.Be4#
- 2.Be6#
- 2.Qxc6#
- 2.Qe6#
- 1...Qg3
- 2.Be4#
- 2.Be6#
- 2.Qxc6#
- 2.Qe6#
- 1...Se5
- 2.Be6#
- 2.Rd4#
- 2.Qd6#
- 2.Qe6#
- 1...S4f6
- 2.Be6#
- 2.Rd4#
- 1...S8f6
- 2.Be6#
- 1...Se7
- 2.Be6#
- 2.Qd6#
- 2.Qe6#
- 1...c5
- 2.Qd6#
- 2.Qe6#
- 2.a8Q#
- 2.a8B#
- 1...Rxh6!
- threat
- 1.Rxg4?
- threat
- 2.Rd4#
- 1...Qe4+
- 2.Bxe4#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Qxg4+!
- threat
- 1.Qg7?
- threat
- 2.Qd4#
- 1...Qe4+
- 2.Bxe4#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Se5
- 2.Rd4#
- 2.Qxe5#
- 1...S4f6
- 2.Rd4#
- 1...S8f6!
- threat
- 1.Qf8?
- threat
- 2.Rc5#
- 2.Qc5#
- 2.Qd6#
- 2.Qd8#
- 1...Qe4+
- 2.Bxe4#
- 1...c5
- 2.Rxc5#
- 2.Qxc5#
- 2.Qd6#
- 2.Qa8#
- 2.a8Q#
- 2.a8B#
- 1...S8f6
- 2.Rc5#
- 2.Qc5#
- 2.Qd6#
- 1...Qh2
- 2.Be4#
- 2.Rc5#
- 2.Qc5#
- 1...Qg3
- 2.Be4#
- 2.Rc5#
- 2.Qc5#
- 1...Se5
- 2.Rc5#
- 2.Rd4#
- 2.Qc5#
- 2.Qd6#
- 1...S4f6
- 2.Rc5#
- 2.Rd4#
- 2.Qc5#
- 2.Qd6#
- 1...S8h6
- 2.Rc5#
- 2.Qc5#
- 2.Qd6#
- 1...Se7!
- threat
- 1.Qxh8?
- threat
- 2.Qd4#
- 1...Qe4+
- 2.Bxe4#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Se5
- 2.Rd4#
- 2.Qxe5#
- 1...S4f6
- 2.Rd4#
- 1...S8f6!
- threat
- 1.a8Q?
- threat
- 2.Qxc6#
- 2.Qd8#
- 1...Qe4+
- 2.Bxe4#
- 1...S8xh6
- 2.Qxc6#
- 1...S8f6
- 2.Qxc6#
- 1...Qh2
- 2.Be4#
- 2.Qxc6#
- 1...Qg3
- 2.Be4#
- 2.Qxc6#
- 1...Se5
- 2.Rd4#
- 1...S4f6
- 2.Rd4#
- 2.Qxc6#
- 1...Se7!
- threat
- 1.a8S?
- threat
- 2.Sb6#
- 2.Sc7#
- 1...Qe4+
- 2.Bxe4#
- 1...Qh2
- 2.Sb6#
- 2.Be4#
- 1...Qg3
- 2.Sb6#
- 2.Be4#
- 1...c5!
- threat
- 1.a8B?
- threat
- 2.Bxc6#
- 1...Qe4+
- 2.Bxe4#
- 1...Se5
- 2.Rd4#
- 1...Se7!
- threat
- 1.Bf5?
- Keys
- 1.Bc2!
- threat
- 2.Bb3#
- 1...Qe4+
- 2.Bxe4#
- 1...Kc4
- 2.Be4#
- 1...Kc5
- 2.Bb3#
- 2.Be4#
- 1...Sxe3
- 2.Qd6#
- 1...Se5
- 2.Qd6#
- 1...c5
- 2.Qe6#
- threat
- 1.Bc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- Q(b);N_GUARD::B(H)
- Q(b);CHECK,N_GUARD::B(H),XQ(b)
- S(c);OGATE::R1(E)
- S(c);OGATE,XQ(I)::R1(E)
- P(e);::P=Q
- Tries
- Try
- B(H);
- Threat
- DUALS(4)
- Vars
- Q(b);CHECK,N_GUARD::B(H),XQ(b)
- S(f);XQ(I)::B(H)
- S(f);::B(H)
- Refutation
- R(g);XQ(I)
- Try
- R(E);XS(c)
- Threat
- R1(E)
- Vars
- Q(b);CHECK,N_GUARD::B(H),XQ(b)
- P(e);::P=Q
- Refutation
- Q(b);CHECK,XR(E)
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- Q(b);CHECK,N_GUARD::B(H),XQ(b)
- P(e);::P=Q
- S(c);OGATE::R1(E)
- Refutation
- S(f);
- Try
- Q(I);
- Threat
- DUALS(4)
- Vars
- Q(b);CHECK,N_GUARD::B(H),XQ(b)
- Refutation
- S(f);
- Try
- Q(I);XR(g)
- Threat
- QAR1(I)
- Vars
- Q(b);CHECK,N_GUARD::B(H),XQ(b)
- P(e);::P=Q
- S(c);OGATE::R1(E)
- Refutation
- S(f);
- Try
- P(J);P_PINP(e)
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD::B(H),XQ(b)
- S(f);XQ(I)::QAB1(J),XP(e)
- S(f);::QAB1(J),XP(e)
- S(c);OGATE::R1(E)
- Refutation
- S(f);
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD::B(H),XQ(b)
- Refutation
- P(e);
- Try
- P(J);P_PINP(e)
- Threat
- B(J),XP(e)
- Vars
- Q(b);CHECK,N_GUARD::B(H),XQ(b)
- S(c);OGATE::R1(E)
- Refutation
- S(f);
- Try
- Actual
- B(H);
- Threat
- B(H)
- Vars
- Q(b);CHECK,N_GUARD::B(H),XQ(b)
- K(d);P_SPINS(c),S_FLIGHT::R(A)+B(H)
- S(c);XP(C)::QAR1(I)
- S(c);::QAR1(I)
- P(e);SBLOCK::QAB1(I)
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).