MESON Chess Problem Database
Problem Display
PID: 106280 (K4b2/1Qp3q1/1p1pn3/4pp2/N1R3n1/6pr/p6P/rk4B1 w - - 0 1)
Pituk, Alexander
Prace, 1965
#2
6 + 14
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...f4
- 2.Qe4#
- 1...b5
- 2.Qxb5#
- 1...c5
- 2.Qxb6#
- 1...c6
- 2.Qxb6#
- 1...f4
- Tries
- 1.Be3?
- threat
- 2.Rc1#
- 2.Qh1#
- 1...Rxh2
- 2.Rc1#
- 1...Sxh2
- 2.Rc1#
- 1...Sf2
- 2.Rc1#
- 1...g2
- 2.Rc1#
- 1...e4
- 2.Rc1#
- 1...d5
- 2.Rc1#
- 1...c6
- 2.Rc1#
- 2.Qxb6#
- 1...Sxe3!
- threat
- 1.Qh1?
- threat
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bc5#
- 2.Bxb6#
- 1...Rxh2
- 2.Bxh2#
- 1...Sxh2
- 2.Bxh2#
- 1...Qh6
- 2.Be3#
- 1...Qg5
- 2.Be3#
- 1...Sf2
- 2.Bxf2#
- 1...Se3
- 2.Bxe3#
- 1...Sd4
- 2.Bf2#
- 2.Be3#
- 2.Bxd4#
- 1...Sc5
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bxc5#
- 1...b5
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bc5#
- 2.Bb6#
- 2.Ba7#
- 1...c5
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bxc5#
- 1...g2!
- threat
- 1.Qg2?
- threat
- 2.Qf1#
- 2.Qb2#
- 2.Qc2#
- 1...Rxh2
- 2.Qf1#
- 1...Sxh2
- 2.Qb2#
- 2.Qc2#
- 1...Qh6
- 2.Qb2#
- 2.Qc2#
- 1...Qg5
- 2.Qb2#
- 2.Qc2#
- 1...Se3
- 2.Qb2#
- 1...Sd4
- 2.Qf1#
- 2.Qb2#
- 1...e4
- 2.Qf1#
- 2.Qc2#
- 1...Sf2!
- threat
- 1.Qf3?
- threat
- 2.Qd1#
- 2.Qf1#
- 2.Qb3#
- 2.Qd3#
- 1...Rxh2
- 2.Qd1#
- 2.Qf1#
- 1...Sxh2
- 2.Qd1#
- 2.Qb3#
- 2.Qd3#
- 1...gxh2
- 2.Qd1#
- 2.Qf1#
- 1...Qh6
- 2.Qb3#
- 2.Qd3#
- 1...Qg5
- 2.Qb3#
- 2.Qd3#
- 1...Sf2
- 2.Qb3#
- 1...Sd4
- 2.Qd1#
- 2.Qf1#
- 1...Sf4
- 2.Qd1#
- 2.Qf1#
- 2.Qb3#
- 1...Sc5
- 2.Qd1#
- 2.Qf1#
- 1...g2
- 2.Qd1#
- 1...e4
- 2.Qd1#
- 2.Qf1#
- 1...Se3!
- threat
- 1.Qd5?
- threat
- 2.Qd1#
- 2.Qd3#
- 2.Qb5#
- 1...Rxh2
- 2.Qd1#
- 1...gxh2
- 2.Qd1#
- 1...Qh6
- 2.Qd3#
- 2.Qb5#
- 1...Qg5
- 2.Qd3#
- 2.Qb5#
- 1...Qd7
- 2.Qd1#
- 2.Qd3#
- 1...Sf2
- 2.Qb5#
- 1...Se3
- 2.Qb5#
- 1...Sf4
- 2.Qd1#
- 2.Qb5#
- 1...Sc5
- 2.Qd1#
- 1...g2
- 2.Qd1#
- 1...e4
- 2.Qd1#
- 1...b5
- 2.Qd1#
- 2.Qd3#
- 2.Qxb5#
- 1...c5
- 2.Qd1#
- 2.Qd3#
- 1...c6
- 2.Qd1#
- 2.Qd3#
- 1...Sd4!
- threat
- 1.Qc6?
- threat
- 2.Rc1#
- 2.Rb4#
- 2.Qb5#
- 1...Rxh2
- 2.Rc1#
- 1...gxh2
- 2.Rc1#
- 1...Qh6
- 2.Rb4#
- 2.Qb5#
- 1...Qg5
- 2.Rb4#
- 2.Qb5#
- 1...Qd7
- 2.Rc1#
- 2.Rb4#
- 1...Sd4
- 2.Rc1#
- 1...g2
- 2.Rc1#
- 1...e4
- 2.Rc1#
- 1...b5
- 2.Rc1#
- 2.Rb4#
- 2.Qxb5#
- 1...d5
- 2.Rc1#
- 1...Sc5!
- threat
- 1.Be3?
- Keys
- 1.Bxb6!
- threat
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Ba5#
- 2.Bc5#
- 2.Ba7#
- 2.Bxc7#
- 2.Qh1#
- 1...Rxh2
- 2.Bf2#
- 1...Sxh2
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Ba5#
- 2.Bc5#
- 2.Ba7#
- 2.Bxc7#
- 1...gxh2
- 2.Be3#
- 2.Qh1#
- 1...cxb6
- 2.Qh1#
- 2.Qxb6#
- 1...Qh6
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Ba5#
- 2.Bc5#
- 2.Ba7#
- 2.Bxc7#
- 1...Qg5
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Ba5#
- 2.Bc5#
- 2.Ba7#
- 2.Bxc7#
- 1...Qd7
- 2.Qh1#
- 1...Sf2
- 2.Bxf2#
- 2.Be3#
- 2.Bd4#
- 2.Ba5#
- 2.Bc5#
- 2.Ba7#
- 2.Bxc7#
- 1...Se3
- 2.Bxe3#
- 2.Bd4#
- 2.Ba5#
- 2.Bc5#
- 2.Ba7#
- 2.Bxc7#
- 1...Sd4
- 2.Bxd4#
- 2.Qh1#
- 1...Sc5
- 2.Bxc5#
- 2.Qh1#
- 1...Sd8
- 2.Qh1#
- 1...g2
- 2.Be3#
- 1...e4
- 2.Bd4#
- 1...d5
- 2.Bc5#
- 1...c5
- 2.Bc7#
- 2.Qh1#
- 1...c6
- 2.Bc7#
- threat
- 1.Bxb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- P(h);N_GUARD::QAB(E)
- P(i);OGATE::QAR(E),XP(i)
- P(l);N_GUARD::QAR(E),XP(i)
- Tries
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(e);XP(B)::R1(D)
- S(f);XP(B)::R1(D)
- S(f);::R1(D)
- P(d);::R1(D)
- P(g);::R1(D)
- P(j);::R1(D)
- Refutation
- S(f);XB(A)
- Try
- Q(E);N_PINP(i)
- Threat
- DUALS(5)
- Vars
- R(e);OGATE,XP(B)::QAR(E)+B(A),XR(e)
- S(f);OGATE,XP(B)::QAR(E)+B(A),XS(f)
- Q(m);::QAR(E)+B(A)
- S(f);::QAR(E)+B(A),XS(f)
- Refutation
- P(d);
- Try
- Q(E);N_PINP(i)
- Threat
- DUALS(3)
- Vars
- R(e);XP(B)::QAR(E)
- S(f);::QAR1(E)
- Refutation
- S(f);
- Try
- Q(E);N_PINP(i)
- Threat
- DUALS(4)
- Vars
- S(f);::QAR2(E)
- P(d);::QAR2(E)
- Refutation
- S(f);
- Try
- Q(E);N_PINP(i)
- Threat
- DUALS(3)
- Vars
- R(e);XP(B)::QAR2(E)
- P(d);XP(B)::QAR2(E)
- S(f);::QAR(E)
- S(k);::QAR2(E)
- P(d);::QAR2(E)
- P(g);::QAR2(E)
- Refutation
- S(k);
- Try
- Q(E);N_PINP(i)
- Threat
- DUALS(3)
- Vars
- R(e);XP(B)::R1(D)
- P(d);XP(B)::R1(D)
- S(k);::R1(D)
- P(d);::R1(D)
- P(g);::R1(D)
- P(j);::R1(D)
- Refutation
- S(k);
- Try
- Actual
- B(A);XP(i)
- Threat
- DUALS(9)
- Vars
- R(e);XP(B)::QAR(E)+B(A)
- Q(m);::QAR(E)
- S(k);::QAR(E)
- P(d);::QAR(E)+B(A)
- P(g);::QAR(E)+B(A)
- P(j);::QAR(E)+B(A)
- P(l);::QAR(E)+B(A)
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).