MESON Chess Problem Database
Problem Display
PID: 77140 (2N2B1K/r3n3/p4Qb1/2kP4/1R2P3/P1bq1N2/1n6/2R5 w - - 0 1)
Guida, Marco
3rd Prize, Die Schwalbe, 2007
#2
10 + 8
| 23 | Die Schwalbe | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qd4#
- 1...Qf1
- 2.Qd4#
- 1...Qe2
- 2.Qd4#
- 1...Qb5
- 2.Qd4#
- 1...Qxf3
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 1...Ra8
- 2.Bxe7#
- 1...Qb1
- Tries
- 1.Sd4?
- threat
- 2.Sb3#
- 2.Se6#
- 2.Qb6#
- 2.Qc6#
- 2.Qd6#
- 1...Qxe4
- 2.Qc6#
- 2.Qd6#
- 1...Qxd4
- 2.Qxd4#
- 1...Bxe4
- 2.Qc6#
- 2.Qd6#
- 1...Qc2
- 2.Se6#
- 2.Qb6#
- 2.Qc6#
- 2.Qd6#
- 1...Qc4
- 2.Se6#
- 2.Qb6#
- 1...Qb5
- 2.Sb3#
- 2.Se6#
- 2.Qd6#
- 1...Qd1
- 2.Se6#
- 2.Qb6#
- 2.Qc6#
- 2.Qd6#
- 1...Qg3
- 2.Sb3#
- 2.Se6#
- 2.Qb6#
- 2.Qc6#
- 1...Rb7
- 2.Sb3#
- 2.Se6#
- 2.Qc6#
- 2.Qd6#
- 1...Rc7
- 2.Sb3#
- 2.Se6#
- 2.Qb6#
- 2.Qd6#
- 1...Rd7
- 2.Sb3#
- 2.Se6#
- 2.Qb6#
- 2.Qc6#
- 1...Bf5
- 2.Sb3#
- 2.Qb6#
- 2.Qc6#
- 2.Qd6#
- 1...Bf7
- 2.Sb3#
- 2.Qb6#
- 2.Qc6#
- 2.Qd6#
- 1...Be8
- 2.Sb3#
- 2.Se6#
- 2.Qb6#
- 2.Qd6#
- 1...Sa4
- 2.Sb3#
- 2.Se6#
- 2.Qc6#
- 2.Qd6#
- 1...Sc4
- 2.Sb3#
- 2.Se6#
- 1...Qh3+!
- threat
- 1.Se5?
- threat
- 2.Qb6#
- 2.Qc6#
- 2.Qd6#
- 1...Qxe4
- 2.Qc6#
- 2.Qd6#
- 1...Qxd5
- 2.Qb6#
- 1...Bxe4
- 2.Qc6#
- 2.Qd6#
- 1...Qc4
- 2.Qb6#
- 1...Sc4
- 2.Sxd3#
- 1...Qb5
- 2.Qf2#
- 2.Qd6#
- 1...Rb7
- 2.Qc6#
- 2.Qd6#
- 1...Rc7
- 2.Qb6#
- 2.Qd6#
- 1...Rd7
- 2.Sxd7#
- 2.Qb6#
- 2.Qc6#
- 1...Be8
- 2.Qb6#
- 2.Qd6#
- 1...Sa4
- 2.Sxd3#
- 2.Qc6#
- 2.Qd6#
- 1...Qh3+!
- threat
- 1.Bg7?
- threat
- 2.Qb6#
- 2.Qd6#
- 1...Qxe4
- 2.Qd6#
- 1...Qxd5
- 2.Qb6#
- 1...Bxe4
- 2.Qd6#
- 1...Sxd5
- 2.Qd6#
- 1...Sxc8
- 2.Qc6#
- 1...Qb5
- 2.Qd4#
- 2.Qd6#
- 1...Rb7
- 2.Qd6#
- 1...Rd7
- 2.Qb6#
- 1...Sa4
- 2.Qd6#
- 1...Sf5
- 2.Qb6#
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 2.Qd6#
- 1...Sc4!
- threat
- 1.Rxc3+?
- 1...Qc4
- 2.Qd4#
- 2.Qb6#
- 2.Qc6#
- 2.Qd6#
- 1...Sc4
- 2.Qb6#
- 2.Qc6#
- 2.Qd6#
- 1...Qxc3!
- 1...Qc4
- 1.Rd4?
- threat
- 2.Qb6#
- 2.Qc6#
- 1...Kb5
- 2.Qb6#
- 1...Qxf3
- 2.Qb6#
- 1...Qb5
- 2.Qd6#
- 1...Rb7
- 2.Qc6#
- 1...Rc7
- 2.Qb6#
- 1...Be8
- 2.Qb6#
- 1...Sa4
- 2.Qc6#
- 1...Sc4
- 2.Qc6#
- 1...Qxd4!
- threat
- 1.Sd4?
- Keys
- 1.e5!
- threat
- 2.Qc6#
- 2.Qd6#
- 1...Kxd5
- 2.Qd6#
- 1...Qxd5
- 2.Qb6#
- 1...Sc4
- 2.Qc6#
- 1...Qb5
- 2.Qd6#
- 1...Rc7
- 2.Qd6#
- 1...Rd7
- 2.Qc6#
- 1...Be8
- 2.Qd6#
- threat
- 1.e5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 6
- Sets
- Q(c);N_GUARD::QAB1(G)
- Q(c);N_GUARD,XS(C)::QAB1(G)
- Q(c);N_GUARD::QAB1(G),XQ(c)
- R(g);N_GUARD::B(I),XS(h)
- Tries
- Try
- S(C);N_SPINQ(G)
- Threat
- DUALS(5)
- Vars
- Q(c);OGATE,P_PINQ(G),XS(C)::QAB1(G),XQ(c)
- Refutation
- Q(c);CHECK
- Try
- S(C);N_SPINQ(G)
- Threat
- DUALS(3)
- Vars
- Q(c);XP(F)::QAB1(G)
- Q(c);N_SPINB(b)::QAB1(G)
- S(a);N_GUARD,N_SPINB(b)::S(C),XQ(c)
- Refutation
- Q(c);CHECK
- Try
- B(I);N_PINS(h),N_SPINQ(G)
- Threat
- DUALS(2)
- Vars
- Q(c);XP(E)::QAB1(G)
- Q(c);XP(F)::QAB1(G)
- B(f);XP(E)::QAB1(G)
- S(h);XP(F)::QAB1(G)
- S(h);N_GUARD,XS(H)::QAR1(G)
- R(g);::QAB1(G)
- S(a);::QAB1(G)
- Refutation
- S(a);N_SPINB(b)
- Try
- R(A);CHECK,N_SPINQ(G),XB(b)
- Refutation
- Q(c);P_PINQ(G),XR(A)
- Try
- R(D);N_SPINQ(G)
- Threat
- DUALS(2)
- Vars
- K(d);N_SPINB(b),N_SPINS(h),P-FLIGHT::QAR1(G)
- Q(c);XS(C)::QAB1(G)
- Q(c);SBLOCK::QAB1(G)
- R(g);::QAR1(G)
- R(g);::QAB1(G)
- B(f);::QAB1(G)
- S(a);::QAR1(G)
- S(a);N_SPINB(b)::QAR1(G)
- Refutation
- Q(c);P_PINQ(G),XR(D)
- Try
- Actual
- P(E);N_SPINQ(G)
- Threat
- DUALS(2)
- Vars
- K(d);N_SPINB(b),N_SPINS(h),P-FLIGHT,XP(F)::QAR1(G)
- Q(c);SBLOCK,XP(F)::QAB1(G)
- S(a);N_SPINB(b)::QAR1(G)
- Q(c);::QAB1(G)
- R(g);::QAB1(G)
- R(g);::QAR1(G)
- B(f);::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).