MESON Chess Problem Database
Problem Display
PID: 202664 (bbQ5/5Kp1/1p1P2p1/1P1k4/4NnN1/n1PB2p1/2P3P1/8 w - - 0 1)
Onitiu, Valerian
Magyar Sakkvilag, 1923
#2
10 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Bxd6
- 2.Qxa8#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sb1
- 2.Qc4#
- 1...Sxc2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sxb5
- 2.Qc4#
- 1...Se2
- 2.Qe6#
- 1...Sxg2
- 2.Qe6#
- 1...Sxd3
- 2.Qe6#
- 1...Sh3
- 2.Qe6#
- 1...Sh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...g5
- 2.Qf5#
- 1...Bc6
- Tries
- 1.Ke7?
- 1...Sxc2
- 2.Qc4#
- 1...Sxb5
- 2.Qc4#
- 1...Sxg2
- 2.Qe6#
- 2.Qg8#
- 1...Sxd3
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sb1
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Se2
- 2.Qe6#
- 2.Qg8#
- 1...Sh3
- 2.Qe6#
- 2.Qg8#
- 1...Sh5
- 2.Qe6#
- 2.Qg8#
- 1...Se6
- 2.Qxe6#
- 1...g5
- 2.Qf5#
- 1...Bxd6+!
- 1...Sxc2
- 1.Bf1?
- 1...Bxd6
- 2.Qxa8#
- 1...Sxc2
- 2.Qc4#
- 1...Sxb5
- 2.Qc4#
- 1...Sxg2
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sb1
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Se2
- 2.Qe6#
- 1...Sd3
- 2.Qe6#
- 1...Sh3
- 2.Qe6#
- 1...Sh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...g5
- 2.Qf5#
- 1...Kxe4!
- 1...Bxd6
- 1.Qe8?
- threat
- 2.Se3#
- 2.Qe5#
- 1...Bxd6
- 2.Se3#
- 2.Qxa8#
- 1...Sxc2
- 2.Qe5#
- 1...Sxb5
- 2.Se3#
- 2.Qxb5#
- 1...Sxg2
- 2.Qe5#
- 2.Qe6#
- 1...Sxd3
- 2.Se3#
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sc4!
- threat
- 1.c4+?
- 1...Sxc4
- 2.Qxc4#
- 1...Kd4!
- 1...Sxc4
- 1.Ke7?
- Keys
- 1.Be2!
- 1...Kxe4
- 2.Bf3#
- 1...Bxd6
- 2.Qxa8#
- 1...Sxc2
- 2.Qc4#
- 1...Sxb5
- 2.Qc4#
- 1...Sxe2
- 2.Qe6#
- 1...Sxg2
- 2.Qe6#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Ba7
- 2.Qxa8#
- 1...Bc7
- 2.Qxa8#
- 1...Sb1
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sd3
- 2.Qe6#
- 1...Sh3
- 2.Qe6#
- 1...Sh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...g5
- 2.Qf5#
- 1...Kxe4
- 1.Be2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(h);N_GUARD::QAB1(J),XB(h)
- B(h);N_GUARD::QAB(J),XB(h)
- B(i);OGATE,XP(H)::QAB(J),XB(h)
- B(i);OGATE::QAB(J),XB(h)
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD,XP(A)::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(a);N_GUARD,XP(G)::QAB1(J)
- S(c);N_GUARD::QAB1(J)
- S(c);N_GUARD,XP(B)::QAB1(J)
- S(c);N_GUARD,XB(D)::QAB1(J)
- S(c);N_GUARD::QAB1(J),XS(c)
- P(f);N_GUARD::QAR2(J)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- S(a);N_GUARD,XP(A)::QAB1(J)
- S(a);N_GUARD,XP(G)::QAB1(J)
- S(c);N_GUARD,XB(D)::QAB1(J)
- B(h);N_GUARD::QAB1(J),XB(h)
- B(h);N_GUARD::QAB(J),XB(h)
- B(i);OGATE::QAB(J),XB(h)
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(c);N_GUARD::QAB1(J),XS(c)
- P(f);N_GUARD::QAR2(J)
- Refutation
- B(i);CHECK,XP(H)
- Try
- B(D);
- Vars
- B(i);OGATE,XP(H)::QAB(J),XB(h)
- S(a);N_GUARD,XP(A)::QAB1(J)
- S(a);N_GUARD,XP(G)::QAB1(J)
- S(c);N_GUARD,XP(B)::QAB1(J)
- B(h);N_GUARD::QAB1(J),XB(h)
- B(h);N_GUARD::QAB(J),XB(h)
- B(i);OGATE::QAB(J),XB(h)
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(c);N_GUARD::QAB1(J)
- S(c);N_GUARD::QAB1(J),XS(c)
- P(f);N_GUARD::QAR2(J)
- Refutation
- K(d);S_FLIGHT,XS(E)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- S(a);XP(A)::QAR1(J)
- S(c);N_GUARD::QAB1(J),XS(c)
- Refutation
- S(a);
- Try
- P(C);CHECK
- Vars
- S(a);OGATE,XP(C)::QAB1(J),XS(a)
- Refutation
- K(d);P-FLIGHT
- Try
- Actual
- B(D);
- Vars
- K(d);OGATEB,S_FLIGHT,XS(E)::B(D)
- B(i);OGATE,XP(H)::QAB(J),XB(h)
- S(a);N_GUARD,XP(A)::QAB1(J)
- S(a);N_GUARD,XP(G)::QAB1(J)
- S(c);N_GUARD,XB(D)::QAB1(J)
- S(c);N_GUARD,XP(B)::QAB1(J)
- B(h);N_GUARD::QAB1(J),XB(h)
- B(h);N_GUARD::QAB(J),XB(h)
- B(i);OGATE::QAB(J),XB(h)
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- S(c);N_GUARD::QAB1(J)
- S(c);N_GUARD::QAB1(J),XS(c)
- P(f);N_GUARD::QAR2(J)
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).