MESON Chess Problem Database
Problem Display
PID: 234107 (2Q5/8/1p3P2/1PpK4/3NP3/2kB2p1/R3P3/nR6 w - - 0 1)
Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)
Buletin Problemistic, 1975
#2
10 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rxb3#
- 1...c4
- 2.Qxc4#
- 1...Sc2
- Tries
- 1.Ke5?
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rxb3#
- 1...c4
- 2.Qxc4#
- 1...g2!
- 1...Sc2
- 1.Rc1+?
- 1...Kb4
- 2.Rc4#
- 1...Sc2!
- 1...Kb4
- 1.Qh3?
- 1...cxd4
- 2.Qc8#
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rxb3#
- 1...g2
- 2.Bc4#
- 1...c4!
- 1...cxd4
- 1.Qc6?
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rxb3#
- 1...c4
- 2.Qxc4#
- 1...g2!
- 1...Sc2
- 1.Qc7?
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rxb3#
- 1...c4
- 2.Qxc4#
- 1...g2!
- 1...Sc2
- 1.Qf8?
- 1...cxd4
- 2.Qb4#
- 2.Qc8#
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rxb3#
- 1...c4
- 2.Qb4#
- 1...g2!
- 1...cxd4
- 1.e5?
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rxb3#
- 1...c4
- 2.Qxc4#
- 1...g2!
- 1...Sc2
- 1.f7?
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rxb3#
- 1...c4
- 2.Qxc4#
- 1...g2!
- 1...Sc2
- 1.Ke5?
- Keys
- 1.Bc4!
- 1...cxd4
- 2.Bd3#
- 1...Sc2
- 2.Rxc2#
- 1...Sb3
- 2.Rxb3#
- 1...g2
- 2.Qh3#
- 1...cxd4
- 1.Bc4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(A),XS(a)
- P(d);OGATE::QAR1(J),XP(d)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(A),XS(a)
- P(d);OGATE::QAR1(J),XP(d)
- Refutation
- P(c);
- Try
- R(A);CHECK
- Vars
- K(b);N_SPINP(d),OGATE,S_FLIGHT::R1(A)
- Refutation
- S(a);P_SPINS(a)
- Try
- Q(J);N_PINP(d)
- Vars
- P(d);OGATEB,XS(E)::QAR(J)
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(A),XS(a)
- P(c);OGATEB::QAR(J)+B(D)
- Refutation
- P(d);
- Try
- Q(J);
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(A),XS(a)
- P(d);OGATE::QAR1(J),XP(d)
- Refutation
- P(c);
- Try
- Q(J);
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(A),XS(a)
- P(d);OGATE::QAR1(J),XP(d)
- Refutation
- P(c);
- Try
- Q(J);N_PINP(d)
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(A),XS(a)
- P(d);OGATE::QAB1(J)
- Refutation
- P(c);
- Try
- P(F);
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(A),XS(a)
- P(d);OGATE::QAR1(J),XP(d)
- Refutation
- P(c);
- Try
- P(I);
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(A),XS(a)
- P(d);OGATE::QAR1(J),XP(d)
- Refutation
- P(c);
- Try
- Actual
- B(D);N_PINP(d)
- Vars
- P(d);OGATEB,XS(E)::QAR(J)+B(D)
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(A),XS(a)
- P(c);OGATEB::QAR(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).