MESON Chess Problem Database
Problem Display
PID: 244808 (5Rb1/1K1pR3/3pBq2/1Q3P2/4kPN1/1Nb1P3/1n2P3/3r2B1 w - - 0 1)
Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)
Hlas l'udu, 1993
#2
12 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Bd5#
- 1...Qh4
- 2.Bd5#
- 1...Qg5
- 2.Bd5#
- 1...Qg7
- 2.Bd5#
- 1...Qh8
- 2.Bd5#
- 1...Qxf5
- 2.Bd5#
- 2.Bxf5#
- 2.Qxf5#
- 1...Qg6
- 2.Bd5#
- 1...Qh6
- 2.Bd5#
- 1...Ra1
- 2.Qd5#
- 1...Rb1
- 2.Qd5#
- 1...Rc1
- 2.Qd5#
- 1...Re1
- 2.Qd5#
- 1...Rf1
- 2.Qd5#
- 1...Rxg1
- 2.Qd5#
- 1...Rd4
- 2.Sxf6#
- 1...Rd5
- 2.Qxd5#
- 1...Be1
- 2.Sxf6#
- 1...Bd2
- 2.Sxf6#
- 2.Qd5#
- 1...Bb4
- 2.Sxf6#
- 1...Bd4
- 2.Qd5#
- 1...Ba5
- 2.Sxf6#
- 1...Sd3
- 2.Qd5#
- 1...d5
- 2.Sc5#
- 1...Qd4
- Tries
- 1.Sd2+?
- 1...Bxd2
- 2.Sxf6#
- 2.Qd5#
- 1...Rxd2!
- 1...Bxd2
- 1.Sd4?
- threat
- 2.Sxf6#
- 2.Bd5#
- 2.Qd5#
- 1...Qxd4
- 2.Bd5#
- 1...Qxe7
- 2.Qd5#
- 1...Qxf5
- 2.Bd5#
- 2.Bxf5#
- 2.Qxf5#
- 1...Qxe6
- 2.Sf6#
- 1...Qxf8
- 2.Bd5#
- 2.Qd5#
- 1...Rxg1
- 2.Bd5#
- 2.Qd5#
- 1...Rxd4
- 2.Sxf6#
- 1...Bxd4
- 2.Qd5#
- 1...Bxe6
- 2.Sxf6#
- 1...dxe6
- 2.Sxf6#
- 1...Qh4
- 2.Bd5#
- 2.Qd5#
- 1...Qg5
- 2.Bd5#
- 2.Qd5#
- 1...Qg7
- 2.Bd5#
- 2.Qd5#
- 1...Qh8
- 2.Bd5#
- 2.Qd5#
- 1...Qg6
- 2.Bd5#
- 2.Qd5#
- 1...Qh6
- 2.Bd5#
- 2.Qd5#
- 1...Qf7
- 2.Bd5#
- 2.Bxf7#
- 2.Qd5#
- 1...d5
- 2.Sxf6#
- 2.Bxd5#
- 2.Qxd5#
- 1...Qe5!
- threat
- 1.Qc4+?
- 1...Qd4
- 2.Sf6#
- 2.Bd5#
- 2.Bxg8#
- 1...Rd4
- 2.Sxf6#
- 1...Bd4
- 2.Sxf6#
- 2.Qd5#
- 1...Sxc4!
- 1...Qd4
- 1.Qc6+?
- 1...Rd5
- 2.Qxd5#
- 1...d5
- 2.Sc5#
- 1...dxc6!
- 1...Rd5
- 1.Qb4+?
- 1...Qd4
- 2.Sf6#
- 2.Bxg8#
- 1...Rd4
- 2.Sxf6#
- 1...Bxb4
- 2.Sxf6#
- 1...Bd4
- 2.Sxf6#
- 1...Sc4!
- 1...Qd4
- 1.Sd2+?
- Keys
- 1.Qc5!
- threat
- 2.Sf2#
- 1...dxc5
- 2.Sxc5#
- 1...Qd4
- 2.Bd5#
- 1...Qh4
- 2.Bd5#
- 1...Rf1
- 2.Qd5#
- 1...Rd4
- 2.Sxf6#
- 1...Be1
- 2.Sxf6#
- 1...Bd4
- 2.Qd5#
- 1...Sd3
- 2.Qd5#
- threat
- 1.Qc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 14
- Sets
- Q(f);::R(K)+B(I),DCHECK
- R(a);N_GUARD::QAB1(G)
- R(a);N_GUARD,XB(A)::QAB1(G)
- R(a);S_CUTB(c)::S(F),XQ(f)
- R(a);N_GUARD::QAB1(G),XR(a)
- B(c);N_GUARD::S(F),XQ(f)
- B(c);S_CUTR(a)::QAB1(G)
- S(b);S_CUTR(a)::QAB1(G)
- P(e);N_GUARD::S(C)
- Tries
- Try
- S(C);CHECK
- Refutation
- R(a);XS(C)
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- Q(f);XS(C)::R(K)+B(I),DCHECK
- Q(f);XR(K)::QAB1(G)
- Q(f);P_SPINQ(f),XB(I)::S(F)
- R(a);XS(C)::S(F),XQ(f)
- B(c);XS(C)::QAB1(G)
- B(h);P_SPINB(h),XB(I)::S(F),XQ(f)
- P(g);P_SPINP(g),XB(I)::S(F),XQ(f)
- Refutation
- Q(f);
- Try
- Q(G);CHECK
- Vars
- R(a);P_SPINR(a)::S(F),XQ(f)
- Refutation
- S(b);XQ(G)
- Try
- Q(G);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::QAB1(G),XR(a)
- P(e);P_SPINP(e)::S(C)
- Refutation
- P(g);XQ(G)
- Try
- Q(G);CHECK
- Vars
- R(a);P_SPINR(a)::S(F),XQ(f)
- B(c);XQ(G)::S(F),XQ(f)
- B(c);P_SPINB(c)::S(F),XQ(f)
- Refutation
- S(b);P_SPINS(b)
- Try
- Actual
- Q(G);
- Threat
- S(F)
- Vars
- P(e);XQ(G)::S(C),XP(e)
- Q(f);::R(K)+B(I),DCHECK
- R(a);N_GUARD::QAB1(G)
- R(a);S_CUTB(c)::S(F),XQ(f)
- B(c);N_GUARD::S(F),XQ(f)
- B(c);S_CUTR(a)::QAB1(G)
- S(b);S_CUTR(a)::QAB1(G)
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).