MESON Chess Problem Database
Problem Display
PID: 238891 (r7/1Bb5/2Np3B/pn1QP3/1P1P3q/3k1p2/3PNR2/2KR4 w - - 0 1)
Paslack, Rainer
idee & form, 2009
#2
12 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Sf4#
- 1...Qe7
- 2.Sf4#
- 1...Qd8
- 2.Sf4#
- 1...Qh1
- 2.Sf4#
- 1...Qh3
- 2.Sf4#
- 1...Qxd4
- 2.Sf4#
- 1...Qe4
- 2.Qxb5#
- 1...Qf4
- 2.Sxf4#
- 1...Qh5
- 2.Sf4#
- 1...Sc3
- 2.dxc3#
- 1...fxe2
- 2.Rf3#
- 1...axb4
- 2.Sxb4#
- 1...Qxf2
- Tries
- 1.Kb1?
- threat
- 2.Sc1#
- 1...Sc3+
- 2.dxc3#
- 1...fxe2
- 2.Rf3#
- 1...Sa3+!
- threat
- 1.Kb2?
- threat
- 2.Sc1#
- 1...fxe2
- 2.Rf3#
- 1...Qxd4+!
- threat
- 1.Sc3?
- threat
- 2.Rxf3#
- 2.Qxb5#
- 1...Qxf2
- 2.Qxb5#
- 1...Qxd4
- 2.Rxf3#
- 1...Qxh6
- 2.Qxb5#
- 1...Sxd4
- 2.Rxf3#
- 1...Qg3
- 2.Qxb5#
- 1...Qg5
- 2.Qxb5#
- 1...Qf6
- 2.Qxb5#
- 1...Qh1
- 2.Qxb5#
- 1...Qh3
- 2.Qxb5#
- 1...Qe4
- 2.Qxb5#
- 1...Qf4
- 2.Qxb5#
- 1...Qg4
- 2.Qxb5#
- 1...Qh5
- 2.Qxb5#
- 1...Rf8
- 2.Qxb5#
- 1...Sa3
- 2.Rxf3#
- 1...Sa7
- 2.Rxf3#
- 1...Sxc3!
- threat
- 1.Sg3?
- threat
- 2.Rxf3#
- 2.Qxb5#
- 1...Qxd4
- 2.Rxf3#
- 1...Qxh6
- 2.Qxb5#
- 1...Sxd4
- 2.Rxf3#
- 1...Qg5
- 2.Qxb5#
- 1...Qf6
- 2.Qxb5#
- 1...Qh1
- 2.Qxb5#
- 1...Qe4
- 2.Qxb5#
- 1...Qf4
- 2.Qxb5#
- 1...Qg4
- 2.Qxb5#
- 1...Qh5
- 2.Qxb5#
- 1...Rf8
- 2.Qxb5#
- 1...Sa3
- 2.Rxf3#
- 2.Qb3#
- 1...Sc3
- 2.Rxf3#
- 1...Sa7
- 2.Rxf3#
- 2.Qb3#
- 1...Qxg3!
- threat
- 1.Sxa5?
- threat
- 2.Qxf3#
- 2.Qc4#
- 2.Qxb5#
- 1...Qxf2
- 2.Sf4#
- 2.Qc4#
- 2.Qe4#
- 2.Qxb5#
- 1...Qxd4
- 2.Sf4#
- 1...Qxh6
- 2.Qc4#
- 2.Qe4#
- 2.Qxb5#
- 1...Bxa5
- 2.Qxb5#
- 1...Sxd4
- 2.Qc4#
- 1...fxe2
- 2.Rf3#
- 2.Qc4#
- 1...Qg3
- 2.Qc4#
- 2.Qe4#
- 2.Qxb5#
- 1...Qg5
- 2.Qc4#
- 2.Qe4#
- 2.Qxb5#
- 1...Qf6
- 2.Qc4#
- 2.Qe4#
- 2.Qxb5#
- 1...Qh1
- 2.Sf4#
- 2.Qc4#
- 2.Qe4#
- 2.Qxb5#
- 1...Qh3
- 2.Sf4#
- 2.Qc4#
- 2.Qe4#
- 2.Qxb5#
- 1...Qe4
- 2.Qc4#
- 2.Qxe4#
- 2.Qxb5#
- 1...Qf4
- 2.Sxf4#
- 2.Qc4#
- 2.Qxb5#
- 1...Qg4
- 2.Qc4#
- 2.Qxb5#
- 1...Qh5
- 2.Sf4#
- 2.Qc4#
- 2.Qe4#
- 2.Qxb5#
- 1...Rf8
- 2.Qc4#
- 2.Qxb5#
- 1...Sa3
- 2.Qb3#
- 2.Qxf3#
- 1...Sc3
- 2.Qxf3#
- 2.Qc4#
- 2.dxc3#
- 1...Sa7
- 2.Qb3#
- 2.Qxf3#
- 2.Qc4#
- 1...Rxa5!
- threat
- 1.Se7?
- threat
- 2.Qxb5#
- 1...Qxd4
- 2.Sf4#
- 1...fxe2
- 2.Rf3#
- 1...Sa3
- 2.Qb3#
- 1...Sc3
- 2.dxc3#
- 1...Sa7
- 2.Qb3#
- 1...Sxd4!
- threat
- 1.Sb8?
- threat
- 2.Qxb5#
- 1...Qxd4
- 2.Sf4#
- 1...fxe2
- 2.Rf3#
- 1...Sa3
- 2.Qb3#
- 1...Sc3
- 2.dxc3#
- 1...Sa7
- 2.Qb3#
- 1...Sxd4!
- threat
- 1.Sd8?
- threat
- 2.Qxb5#
- 1...Qxd4
- 2.Sf4#
- 1...fxe2
- 2.Rf3#
- 1...Sa3
- 2.Qb3#
- 1...Sc3
- 2.dxc3#
- 1...Sa7
- 2.Qb3#
- 1...Sxd4!
- threat
- 1.Qb3+?
- 1...Ke4
- 2.Qxf3#
- 1...Sc3!
- 1...Ke4
- 1.bxa5?
- threat
- 2.Sb4#
- 1...Qxf2
- 2.Sf4#
- 1...Bxa5!
- threat
- 1.Kb1?
- Keys
- 1.Sa7!
- threat
- 2.Qxb5#
- 1...Qxd4
- 2.Sf4#
- 1...Sxd4
- 2.Ba6#
- 1...Sxa7
- 2.Qb3#
- 1...fxe2
- 2.Rf3#
- 1...Sa3
- 2.Qb3#
- 1...Sc3
- 2.dxc3#
- threat
- 1.Sa7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- Q(c);N_GUARD,XR(E)::S(D)
- Q(c);N_GUARD::S(D)
- Q(c);N_GUARD,P_PINR(B)::S(D)
- Q(c);N_GUARD,P_SPINQ(c),XP(G)::S(D)
- Q(c);SBLOCK::QAB(H),XS(e)
- Q(c);N_GUARD,P_PINP(C)::S(D),XQ(c)
- S(e);OGATE::R(B)+P(C),XS(e)
- P(b);SBLOCK,XS(D)::R(E)
- P(d);XP(F)::S(J),XP(d)
- Tries
- Try
- K(A);P-FLIGHT
- Threat
- S(D)
- Vars
- S(e);CHECK,OGATE::R(B)+P(C),XS(e)
- P(b);SBLOCK,XS(D)::R(E)
- Refutation
- S(e);CHECK
- Try
- K(A);S_FLIGHT
- Threat
- S(D)
- Vars
- P(b);SBLOCK,XS(D)::R(E)
- Refutation
- Q(c);CHECK,P_SPINQ(c),XP(G)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(c);XR(E)::QAB(H),XS(e)
- Q(c);P_SPINQ(c),XP(G)::R(E),XP(b)
- Q(c);P_PINP(C),XB(K)::QAB(H),XS(e)
- S(e);P_SPINS(e),XP(G)::R(E),XP(b)
- Q(c);::QAB(H),XS(e)
- Q(c);P_PINP(C)::QAB(H),XS(e)
- Q(c);P_PINR(B)::QAB(H),XS(e)
- R(h);::QAB(H),XS(e)
- S(e);::R(E),XP(b)
- Refutation
- S(e);XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(c);P_SPINQ(c),XP(G)::R(E),XP(b)
- Q(c);P_PINP(C),XB(K)::QAB(H),XS(e)
- S(e);P_SPINS(e),XP(G)::R(E),XP(b)
- Q(c);P_PINP(C)::QAB(H),XS(e)
- Q(c);::QAB(H),XS(e)
- Q(c);P_PINR(B)::QAB(H),XS(e)
- R(h);::QAB(H),XS(e)
- S(e);::R(E),XP(b)
- Refutation
- Q(c);XS(D)
- Try
- S(J);XP(d)
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD,P_SPINQ(c),XP(G)::S(D)
- B(g);XS(J)::QAB(H),XS(e)
- S(e);P_SPINS(e),XP(G)::QAB1(H)
- Refutation
- R(h);XS(J)
- Try
- S(J);
- Threat
- QAB(H),XS(e)
- Vars
- Q(c);N_GUARD,P_SPINQ(c),XP(G)::S(D)
- P(b);SBLOCK,XS(D)::R(E)
- S(e);N_GUARD::QAR2(H)
- S(e);OGATE::R(B)+P(C),XS(e)
- Refutation
- S(e);P_SPINS(e),XP(G)
- Try
- S(J);
- Threat
- QAB(H),XS(e)
- Vars
- Q(c);N_GUARD,P_SPINQ(c),XP(G)::S(D)
- P(b);SBLOCK,XS(D)::R(E)
- S(e);N_GUARD::QAR2(H)
- S(e);OGATE::R(B)+P(C),XS(e)
- Refutation
- S(e);P_SPINS(e),XP(G)
- Try
- S(J);
- Threat
- QAB(H),XS(e)
- Vars
- Q(c);N_GUARD,P_SPINQ(c),XP(G)::S(D)
- P(b);SBLOCK,XS(D)::R(E)
- S(e);N_GUARD::QAR2(H)
- S(e);OGATE::R(B)+P(C),XS(e)
- Refutation
- S(e);P_SPINS(e),XP(G)
- Try
- Q(H);CHECK
- Vars
- K(a);OGATE,S_FLIGHT::QAB1(H),XP(b)
- Refutation
- S(e);P_SPINS(e)
- Try
- P(F);XP(d)
- Threat
- S(J)
- Vars
- Q(c);N_GUARD,XR(E)::S(D)
- Refutation
- B(g);XP(F)
- Try
- Actual
- S(J);
- Threat
- QAB(H),XS(e)
- Vars
- Q(c);N_GUARD,P_SPINQ(c),XP(G)::S(D)
- S(e);OGATEB,P_SPINS(e),XP(G)::B(L)
- S(e);N_GUARD,XS(J)::QAR2(H)
- P(b);SBLOCK,XS(D)::R(E)
- S(e);N_GUARD::QAR2(H)
- S(e);OGATE::R(B)+P(C),XS(e)
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).