MESON Chess Problem Database
Problem Display
PID: 109181 (2N4r/B1Pr1Q1b/B1P1Pb2/pP1p4/2k1n1R1/7R/N2P4/n6K w - - 0 1)
Pituk, Alexander
Slovensky Dennik, 1993
#2
13 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Sxd6#
- 1...Rxc7
- 2.Sd6#
- 1...Re7
- 2.Sd6#
- 1...Rxf7
- 2.Sd6#
- 1...Bb2
- 2.Qf1#
- 1...Bc3
- 2.Rxc3#
- 1...Bd4
- 2.Qf1#
- 1...Bh4
- 2.Rc3#
- 2.Qf1#
- 1...Be5
- 2.Qf1#
- 1...Bg5
- 2.Rc3#
- 2.Qf1#
- 1...Be7
- 2.Rc3#
- 2.Qf1#
- 1...Bg7
- 2.Qf1#
- 1...Bd8
- 2.Rc3#
- 2.Qf1#
- 1...Sb3
- 2.d3#
- 1...d4
- 2.exd7#
- 1...Rd6
- Tries
- 1.Rxe4+?
- 1...Bd4
- 2.Rc3#
- 2.Rxd4#
- 2.Qf1#
- 1...dxe4
- 2.exd7#
- 1...d4
- 2.exd7#
- 1...Bxe4+!
- 1...Bd4
- 1.Qxf6?
- threat
- 2.Rc3#
- 2.Qc3#
- 2.Qd4#
- 2.Qf1#
- 1...Rf7
- 2.Sd6#
- 2.Rc3#
- 2.Qc3#
- 2.Qd4#
- 1...Rf8
- 2.Rc3#
- 2.Qc3#
- 2.Qd4#
- 1...Bf5
- 2.Qc3#
- 2.Qd4#
- 1...Bg6
- 2.Qc3#
- 2.Qd4#
- 2.Qf1#
- 1...Bg8
- 2.Qc3#
- 2.Qd4#
- 2.Qf1#
- 1...Sc2
- 2.Rc3#
- 2.Qc3#
- 2.Qf1#
- 1...Sb3
- 2.Rc3#
- 2.Qc3#
- 2.Qf1#
- 2.d3#
- 1...d4!
- threat
- 1.Qf8?
- threat
- 2.Qc5#
- 1...Bc3
- 2.Rxc3#
- 1...d4
- 2.Sb6#
- 1...Rd6
- 2.Sxd6#
- 1...Re7
- 2.Sd6#
- 1...Bd4
- 2.Qf1#
- 2.b6#
- 1...Be7
- 2.Rc3#
- 2.Qf1#
- 1...Sb3
- 2.d3#
- 1...Rxf8!
- threat
- 1.cxd7?
- threat
- 2.Sd6#
- 1...Bc3
- 2.Rxc3#
- 1...d4
- 2.e7#
- 1...Bd4
- 2.Qf1#
- 1...Be5
- 2.Qf1#
- 1...Be7
- 2.Rc3#
- 2.Qf1#
- 1...Rxc8!
- threat
- 1.exd7?
- threat
- 2.Sd6#
- 1...Bc3
- 2.Rxc3#
- 1...Bd4
- 2.Qf1#
- 1...Be5
- 2.Qf1#
- 1...Be7
- 2.Rc3#
- 2.Qf1#
- 1...Rxc8!
- threat
- 1.Rxe4+?
- Keys
- 1.Qe7!
- threat
- 2.Qc5#
- 1...Rxe7
- 2.Sd6#
- 1...Bxe7
- 2.Rc3#
- 1...Bc3
- 2.Rxc3#
- 1...d4
- 2.Sb6#
- 1...Rd6
- 2.Sxd6#
- 1...Bd4
- 2.b6#
- 1...Sb3
- 2.d3#
- threat
- 1.Qe7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(g);N_GUARD::S(M),XR(g)
- R(g);N_GUARD,XP(K)::S(M)
- R(g);N_GUARD::S(M)
- R(g);N_GUARD,XQ(L)::S(M)
- B(f);OGATE::QAB(L)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_SPINS(c),OGATE::QAB(L)
- S(a);SBLOCK::P(C)
- P(e);N_SPINS(c)::QAB(L)+P(I),XR(g)
- Tries
- Try
- R(E);CHECK,XS(c)
- Vars
- P(e);S_CUTB(f),S_CUTB(h),XR(E)::QAB(L)+P(I),XR(g)
- P(e);P_SPINP(e),S_CUTB(f),S_CUTB(h)::QAB(L)+P(I),XR(g)
- Refutation
- B(h);CHECK,P_PINR(D),XR(E)
- Try
- Q(L);XB(f)
- Threat
- DUALS(4)
- Refutation
- P(e);N_SPINS(c)
- Try
- Q(L);
- Threat
- QAR1(L)
- Vars
- B(f);N_GUARD::R1(D),XB(f)
- P(e);N_SPINS(c),SBLOCK::S(M)
- R(g);N_GUARD::S(M),XR(g)
- R(g);N_GUARD::S(M)
- S(a);SBLOCK::P(C)
- Refutation
- R(i);XQ(L)
- Try
- P(H);XR(g)
- Threat
- S(M)
- Vars
- B(f);N_GUARD::R1(D),XB(f)
- P(e);N_SPINS(c)::QAB(L)+P(I)
- B(f);N_SPINS(c),OGATE::QAB(L)
- B(f);OGATE::QAB(L)
- Refutation
- R(i);XS(M)
- Try
- P(I);P_PINP(e),XR(g)
- Threat
- S(M)
- Vars
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_SPINS(c),OGATE::QAB(L)
- B(f);OGATE::QAB(L)
- Refutation
- R(i);XS(M)
- Try
- Actual
- Q(L);
- Threat
- QAR1(L)
- Vars
- R(g);N_GUARD,XQ(L)::S(M)
- B(f);N_GUARD,XQ(L)::R1(D)
- B(f);N_GUARD::R1(D),XB(f)
- P(e);N_SPINS(c),SBLOCK::S(M)
- R(g);N_GUARD::S(M),XR(g)
- B(f);N_SPINS(c),SBLOCK::B(G)+P(F)
- S(a);SBLOCK::P(C)
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).