MESON Chess Problem Database
Problem Display
PID: 227807 (4K3/1Q6/8/2k2Np1/1p3nR1/1p1nN3/1P1B4/8 w - - 0 1)
Pikler, Robert
Magyar Sakkvilag, 1926
#2
7 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Bxb4#
- 1...Se1
- 2.Bxb4#
- 1...Sxb2
- 2.Bxb4#
- 1...Sf2
- 2.Bxb4#
- 1...Se5
- 2.Bxb4#
- 1...Se2
- 2.Rc4#
- 1...Sg2
- 2.Rc4#
- 1...Sh3
- 2.Rc4#
- 1...Sd5
- 2.Rc4#
- 1...Sh5
- 2.Rc4#
- 1...Se6
- 2.Rc4#
- 1...Sg6
- 2.Rc4#
- 1...Sc1
- Tries
- 1.Kf7?
- 1...Sxb2
- 2.Bxb4#
- 1...Sc1
- 2.Bxb4#
- 1...Se1
- 2.Bxb4#
- 1...Sf2
- 2.Bxb4#
- 1...Se2
- 2.Rc4#
- 1...Sg2
- 2.Rc4#
- 1...Sh3
- 2.Rc4#
- 1...Sd5
- 2.Rc4#
- 1...Sh5
- 2.Rc4#
- 1...Se6
- 2.Rc4#
- 1...Sg6
- 2.Rc4#
- 1...Se5+!
- 1...Sxb2
- 1.Kd8?
- 1...Sxb2
- 2.Bxb4#
- 1...Sc1
- 2.Bxb4#
- 1...Se1
- 2.Bxb4#
- 1...Sf2
- 2.Bxb4#
- 1...Se5
- 2.Bxb4#
- 1...Se2
- 2.Rc4#
- 1...Sg2
- 2.Rc4#
- 1...Sh3
- 2.Rc4#
- 1...Sd5
- 2.Rc4#
- 1...Sh5
- 2.Rc4#
- 1...Sg6
- 2.Rc4#
- 1...Se6+!
- 1...Sxb2
- 1.Se7?
- 1...Kd4
- 2.Qd5#
- 1...Sxb2
- 2.Qxb4#
- 1...Sc1
- 2.Qxb4#
- 1...Se1
- 2.Qxb4#
- 1...Sf2
- 2.Qxb4#
- 1...Se5
- 2.Qxb4#
- 1...Se2
- 2.Qc6#
- 1...Sg2
- 2.Qc6#
- 1...Sh3
- 2.Qc6#
- 1...Sd5
- 2.Qc6#
- 1...Sh5
- 2.Qc6#
- 1...Se6
- 2.Qc6#
- 1...Sg6
- 2.Qc6#
- 1...Kd6!
- 1...Kd4
- 1.Be1?
- 1...Sxb2
- 2.Bxb4#
- 1...Sc1
- 2.Bxb4#
- 1...Sf2
- 2.Bxb4#
- 1...Se5
- 2.Bxb4#
- 1...Se2
- 2.Rc4#
- 1...Sg2
- 2.Rc4#
- 1...Sh3
- 2.Rc4#
- 1...Sd5
- 2.Rc4#
- 1...Sh5
- 2.Rc4#
- 1...Se6
- 2.Rc4#
- 1...Sg6
- 2.Rc4#
- 1...Sxe1!
- 1...Sxb2
- 1.Bc3?
- threat
- 2.Bd4#
- 1...Se2
- 2.Rc4#
- 1...Se6
- 2.Rc4#
- 1...bxc3!
- threat
- 1.Rxf4?
- threat
- 2.Rc4#
- 1...Sxb2
- 2.Bxb4#
- 1...Sxf4
- 2.Bxb4#
- 1...Se5
- 2.Bxb4#
- 1...gxf4!
- threat
- 1.Qa7+?
- 1...Kb5
- 2.Sd4#
- 1...Kc6!
- 1...Kb5
- 1.Kf7?
- Keys
- 1.Sd4!
- 1...Kxd4
- 2.Qd5#
- 1...Kd6
- 2.Qe7#
- 1...Sxb2
- 2.Qxb4#
- 1...Sc1
- 2.Qxb4#
- 1...Se1
- 2.Qxb4#
- 1...Sf2
- 2.Qxb4#
- 1...Se5
- 2.Qxb4#
- 1...Se2
- 2.Qc6#
- 2.Qc7#
- 1...Sg2
- 2.Qc6#
- 2.Qc7#
- 1...Sh3
- 2.Qc6#
- 2.Qc7#
- 1...Sd5
- 2.Qc6#
- 1...Sh5
- 2.Qc6#
- 2.Qc7#
- 1...Se6
- 2.Qc6#
- 1...Sg6
- 2.Qc6#
- 2.Qc7#
- 1...Kxd4
- 1.Sd4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- S(b);N_GUARD::B(B),XP(c)
- S(b);N_GUARD,XP(A)::B(B),XP(c)
- S(d);OGATE::R1(D)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- S(b);N_GUARD,XP(A)::B(B),XP(c)
- S(b);N_GUARD::B(B),XP(c)
- S(d);OGATE::R1(D)
- Refutation
- S(b);CHECK
- Try
- K(G);P-FLIGHT
- Vars
- S(b);N_GUARD,XP(A)::B(B),XP(c)
- S(b);N_GUARD::B(B),XP(c)
- S(d);OGATE::R1(D)
- Refutation
- S(d);CHECK
- Try
- S(E);
- Vars
- K(e);P_SPINS(d),S_FLIGHT::QAR1(F)
- S(b);N_GUARD,XP(A)::QAB1(F),XP(c)
- S(b);N_GUARD::QAB1(F),XP(c)
- S(d);::QAR1(F)
- Refutation
- K(e);S_FLIGHT
- Try
- B(B);
- Vars
- S(b);N_GUARD,XP(A)::B(B),XP(c)
- S(b);N_GUARD::B(B),XP(c)
- S(d);OGATE::R1(D)
- Refutation
- S(b);XB(B)
- Try
- B(B);
- Threat
- B(B)
- Vars
- S(d);OGATE::R1(D)
- Refutation
- P(c);XB(B)
- Try
- R(D);XS(d)
- Threat
- R1(D)
- Vars
- S(b);N_GUARD,XP(A)::B(B),XP(c)
- S(b);N_GUARD,XR(D)::B(B),XP(c)
- S(b);N_GUARD::B(B),XP(c)
- Refutation
- P(f);XR(D)
- Try
- Q(F);CHECK
- Vars
- K(e);P-FLIGHT::S(E)
- Refutation
- K(e);P-FLIGHT
- Try
- Actual
- S(E);
- Vars
- K(e);P_SPINS(d),S_FLIGHT,XS(E)::QAR1(F)
- K(e);S_FLIGHT::QAB1(F)
- S(b);N_GUARD,XP(A)::QAB1(F),XP(c)
- S(b);N_GUARD::QAB1(F),XP(c)
- S(d);::QAR1(F)
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).