MESON Chess Problem Database
Problem Display
PID: 254917 (qB4n1/p2B1N1r/6N1/R1pk2P1/5QpR/b1p5/r1PPK3/nb6 w - - 0 1)
Bezgodkov, Anatoly Semenovich
Zadachi i Etyudi, 2006
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Sf6
- 2.Se7#
- 1...Sh6
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...cxd2
- 2.c4#
- 1...g3
- 2.Qe5#
- 2.Qd6#
- 2.Qf3#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.Qf5#
- 1...Sf6
- Tries
- 1.Kd3?
- threat
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.Qf5#
- 1...Qxb8
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rxf7
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.Qxf7#
- 1...Sxc2
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qe4#
- 2.Qf5#
- 1...Qc6
- 2.Qe5#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.Qf5#
- 1...Sb3
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qe4#
- 2.Qf5#
- 1...Sf6
- 2.Se7#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qd4#
- 2.Qf5#
- 1...Sh6
- 2.Se7#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Se7
- 2.Sxe7#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Bxc2+!
- threat
- 1.Ke3?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Bxc2
- 2.Qd4#
- 1...Sb3
- 2.Qe4#
- 1...Sf6
- 2.Se7#
- 2.Qd4#
- 1...Sxc2+!
- threat
- 1.Sd6?
- threat
- 2.Qe5#
- 2.Qc4#
- 2.Qe4#
- 1...Qxb8
- 2.Qe5#
- 1...Rxd7
- 2.Qe4#
- 1...Bxc2
- 2.Qe5#
- 2.Qc4#
- 1...Sf6
- 2.Qe5#
- 2.Qc4#
- 1...Re7+!
- threat
- 1.Bb5?
- threat
- 2.Qe5#
- 2.Qc4#
- 1...Qxb8
- 2.Qc4#
- 1...c4
- 2.Qe5#
- 2.Qxc4#
- 1...Ke6!
- threat
- 1.Be6+?
- 1...Kc6
- 2.Qc7#
- 1...Kxe6!
- 1...Kc6
- 1.Rxg4?
- threat
- 2.Qe5#
- 2.Qd6#
- 2.Qf3#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.Qf5#
- 1...Qxb8
- 2.Qf3#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rxf7
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.Qxf7#
- 1...Bxc2
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qd4#
- 1...Sxc2
- 2.Qe5#
- 2.Qd6#
- 2.Qf3#
- 2.Qc4#
- 2.Qe4#
- 2.Qf5#
- 1...Qc6
- 2.Qe5#
- 2.Qf3#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.Qf5#
- 1...Rh3
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 2.Qf5#
- 1...Sb3
- 2.Qe5#
- 2.Qd6#
- 2.Qf3#
- 2.Qc4#
- 2.Qe4#
- 2.Qf5#
- 1...Sf6
- 2.Se7#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qd4#
- 2.Qf5#
- 1...Sh6
- 2.Se7#
- 2.Qe5#
- 2.Qd6#
- 2.Qf3#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Se7
- 2.Sxe7#
- 2.Qe5#
- 2.Qd6#
- 2.Qf3#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rh2+!
- threat
- 1.Ra4?
- threat
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qe4#
- 2.Qf5#
- 1...Qxb8
- 2.Qc4#
- 2.Qe4#
- 1...Rxf7
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qe4#
- 2.Qxf7#
- 1...Bxc2
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 1...c4
- 2.Qe5#
- 2.Qxc4#
- 1...Qc6
- 2.Qe5#
- 2.Qc4#
- 2.Qe4#
- 2.Qf5#
- 1...Sf6
- 2.Se7#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qf5#
- 1...Sh6
- 2.Se7#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qe4#
- 1...Se7
- 2.Sxe7#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qe4#
- 1...Bb4!
- threat
- 1.Ra6?
- threat
- 2.Be6#
- 2.Rd6#
- 1...Qxb8
- 2.Be6#
- 1...c4
- 2.Qe5#
- 1...Qc6!
- threat
- 1.Qd6+?
- 1...Ke4
- 2.Rxg4#
- 2.Qe5#
- 2.Qd3#
- 2.d3#
- 1...Kc4!
- 1...Ke4
- 1.Qb4?
- threat
- 2.Sf4#
- 2.Rxc5#
- 1...Qxb8
- 2.Rxc5#
- 1...Rxf7
- 2.Rxc5#
- 1...Qc6
- 2.Sf4#
- 1...Sb3
- 2.Sf4#
- 1...Bxb4!
- threat
- 1.Qxg4?
- threat
- 2.Qf3#
- 2.Qf5#
- 2.Qe6#
- 2.Qg2#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Qxb8
- 2.Qf3#
- 2.Qe6#
- 2.Qg2#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rxf7
- 2.Qe6#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Bxc2
- 2.Qe6#
- 2.Qc4#
- 2.Qd4#
- 1...Sxc2
- 2.Qf3#
- 2.Qf5#
- 2.Qe6#
- 2.Qg2#
- 2.Qc4#
- 2.Qe4#
- 1...Qc6
- 2.Qf3#
- 2.Qf5#
- 2.Qg2#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Sb3
- 2.Qf3#
- 2.Qf5#
- 2.Qe6#
- 2.Qg2#
- 2.Qc4#
- 2.Qe4#
- 1...Sf6
- 2.Se7#
- 2.Qf5#
- 2.Qe6#
- 2.Qc4#
- 2.Qd4#
- 1...Sh6
- 2.Se7#
- 2.Qf3#
- 2.Qe6#
- 2.Qg2#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Se7
- 2.Sxe7#
- 2.Qf3#
- 2.Qe6#
- 2.Qg2#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rxh4!
- threat
- 1.Qf5+?
- 1...Kd4
- 2.Qd3#
- 1...Kc4!
- 1...Kd4
- 1.dxc3?
- threat
- 2.Qd4#
- 2.c4#
- 1...Sxc2
- 2.c4#
- 1...Sb3
- 2.c4#
- 1...Rxc2+!
- threat
- 1.d3?
- threat
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 2.Qe4#
- 1...Qxb8
- 2.Qc4#
- 2.Qe4#
- 1...Qc6
- 2.Qe5#
- 2.Qc4#
- 2.Qe4#
- 1...Sf6
- 2.Se7#
- 2.Qe5#
- 2.Qd6#
- 2.Qc4#
- 1...Rxc2+!
- threat
- 1.Kd3?
- Keys
- 1.Sge5!
- threat
- 2.Qc4#
- threat
- 1.Sge5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- S(l);N_GUARD::S(H)
- S(l);N_GUARD::S(H),XS(l)
- P(e);OGATE,XP(B)::P(A)
- Tries
- Try
- K(C);P_SPINP(A),S_FLIGHT
- Threat
- DUALS(6)
- Refutation
- B(b);CHECK,XP(A)
- Try
- K(C);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- B(b);XP(A)::QAR1(D)
- S(a);::QAB1(D)
- Refutation
- S(a);CHECK,XP(A)
- Try
- S(J);
- Threat
- DUALS(3)
- Vars
- Q(k);XB(K)::QAR1(D)
- R(j);XB(I)::QAB1(D)
- Refutation
- R(j);CHECK
- Try
- B(I);N_PINP(g)
- Threat
- DUALS(2)
- Vars
- Q(k);XB(K)::QAB1(D)
- Refutation
- K(h);S_FLIGHT
- Try
- B(I);CHECK
- Vars
- K(h);N_GUARD,N_SPINP(g),S_FLIGHT::QAR1(D)
- Refutation
- K(h);N_SPINP(g),S_FLIGHT,XB(I)
- Try
- R(E);XP(f)
- Threat
- DUALS(7)
- Refutation
- R(j);CHECK
- Try
- R(F);N_PINP(g)
- Threat
- DUALS(5)
- Refutation
- B(d);
- Try
- R(F);N_PINP(g)
- Threat
- DUALS(2)
- Vars
- Q(k);XB(K)::B(I)
- P(g);SBLOCK::QAR1(D)
- Refutation
- Q(k);
- Try
- Q(D);CHECK
- Refutation
- K(h);N_SPINP(g),P_SPINP(f),S_FLIGHT
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- Q(k);XB(K)::R1(F),XP(g)
- R(j);XS(J)::R1(F),XP(g)
- Q(k);::S(H)
- S(a);::S(H)
- Refutation
- B(d);XQ(D)
- Try
- Q(D);XP(f)
- Threat
- DUALS(7)
- Refutation
- R(j);XR(E)
- Try
- Q(D);CHECK
- Vars
- K(h);N_SPINP(g),P-FLIGHT,P_SPINP(f)::QAR1(D)
- Refutation
- K(h);N_SPINP(g),P_SPINP(f),S_FLIGHT
- Try
- P(B);P_SPINP(A),XP(e)
- Threat
- DUALS(2)
- Vars
- S(a);XP(A)::P(B)
- S(a);::P(B)
- Refutation
- R(c);CHECK,XP(A)
- Try
- P(B);P_SPINP(A)
- Threat
- DUALS(4)
- Refutation
- R(c);CHECK,XP(A)
- Try
- Actual
- S(H);
- Threat
- QAB1(D)
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).