MESON Chess Problem Database
Problem Display
PID: 175194 (2B1N3/K4p1Q/1B1P3n/1P1k4/2nP1P2/b2R4/2N5/8 w - - 0 1)
Chapin, Irving
San Francisco Chronicle, 1902
#2
11 + 5
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Bc5
- 2.dxc5#
- 1...Bxd6
- 2.Sf6#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Sg4
- 2.Qh1#
- 1...Sf5
- 2.Qh1#
- 1...Sg8
- 2.Qh1#
- 1...f5
- 2.Qb7#
- 1...f6
- 2.Qb7#
- 1...Bc1
- Tries
- 1.Ka8?
- 1...Bxd6
- 2.Sf6#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sf5
- 2.Qh1#
- 1...f5
- 2.Qb7#
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Bc5
- 2.dxc5#
- 1...Sg4
- 2.Qh1#
- 1...Sg8
- 2.Qh1#
- 1...f6
- 2.Qb7#
- 1...Sxb6+!
- 1...Bxd6
- 1.Kb8?
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sf5
- 2.Qh1#
- 1...f5
- 2.Qb7#
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Bc5
- 2.dxc5#
- 1...Sg4
- 2.Qh1#
- 1...Sg8
- 2.Qh1#
- 1...f6
- 2.Qb7#
- 1...Bxd6+!
- 1...Sxb6
- 1.Ba5?
- 1...Bxd6
- 2.Sf6#
- 1...Sxa5
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Se5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Sf5
- 2.Qh1#
- 1...f5
- 2.Qb7#
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Sg4
- 2.Qh1#
- 1...Sg8
- 2.Qh1#
- 1...f6
- 2.Qb7#
- 1...Bc5+!
- 1...Bxd6
- 1.Bc5?
- threat
- 2.Sf6#
- 2.Sc7#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Sf5
- 2.Sf6#
- 2.Qh1#
- 1...f5
- 2.Sf6#
- 2.Qb7#
- 1...Sg4
- 2.Sc7#
- 2.Qh1#
- 1...Sg8
- 2.Sc7#
- 2.Qh1#
- 1...f6
- 2.Sxf6#
- 2.Sc7#
- 2.Qb7#
- 1...Bxc5+!
- threat
- 1.Bc7?
- threat
- 2.Sf6#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Sg4
- 2.Qh1#
- 1...Sg8
- 2.Qh1#
- 1...f6
- 2.Sxf6#
- 1...Bc5+!
- threat
- 1.Bd8?
- 1...Bxd6
- 2.Sf6#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sb6
- 2.Se3#
- 1...Sf5
- 2.Qh1#
- 1...f5
- 2.Qb7#
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Sg4
- 2.Qh1#
- 1...Sg8
- 2.Qh1#
- 1...f6
- 2.Qb7#
- 1...Bc5+!
- 1...Bxd6
- 1.Bf5?
- 1...Bxd6
- 2.Sf6#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Bc5
- 2.dxc5#
- 1...Sg4
- 2.Qh1#
- 2.Qxf7#
- 1...Sg8
- 2.Qh1#
- 2.Qxf7#
- 1...f6
- 2.Qb7#
- 1...Sxf5!
- 1...Bxd6
- 1.Be6+?
- 1...fxe6
- 2.Qb7#
- 1...Kxe6!
- 1...fxe6
- 1.Rd1?
- 1...Bxd6
- 2.Sf6#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sf5
- 2.Qh1#
- 1...f5
- 2.Qb7#
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Sg4
- 2.Qh1#
- 1...Sg8
- 2.Qh1#
- 1...f6
- 2.Qb7#
- 1...Bc5!
- 1...Bxd6
- 1.Rd2?
- 1...Bxd6
- 2.Sf6#
- 1...Sxd2
- 2.Se3#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sf5
- 2.Qh1#
- 1...f5
- 2.Qb7#
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Sg4
- 2.Qh1#
- 1...Sg8
- 2.Qh1#
- 1...f6
- 2.Qb7#
- 1...Bc5!
- 1...Bxd6
- 1.Rxa3?
- threat
- 2.Sb4#
- 1...Sxa3
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sf5
- 2.Qh1#
- 1...f5
- 2.Qb7#
- 1...Sxb6!
- threat
- 1.Qf5+?
- 1...Se5
- 2.Se3#
- 1...Sxf5!
- 1...Se5
- 1.Qg6?
- threat
- 2.Sc7#
- 2.Bb7#
- 2.Qg2#
- 1...Bxd6
- 2.Sf6#
- 2.Bb7#
- 2.Qg2#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sf5
- 2.Bb7#
- 2.Qg2#
- 1...f5
- 2.Bb7#
- 2.Qg2#
- 2.Qe6#
- 1...Sg4
- 2.Sc7#
- 2.Bb7#
- 1...f6
- 2.Qg2#
- 1...fxg6!
- threat
- 1.Ka8?
- Keys
- 1.Ka6!
- 1...Bxd6
- 2.Sf6#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sd2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sa5
- 2.Se3#
- 1...Se5
- 2.Se3#
- 1...Sf5
- 2.Qh1#
- 1...f5
- 2.Qb7#
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Bc5
- 2.dxc5#
- 1...Sg4
- 2.Qh1#
- 1...Sg8
- 2.Qh1#
- 1...f6
- 2.Qb7#
- 1...Bxd6
- 1.Ka6!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- B(a);OGATE,P_PINB(F)::R(B)+P(C),XB(a)
- B(a);SBLOCK,XP(G)::S(K)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(b);N_GUARD,XB(F)::S(A)
- S(b);N_GUARD,XP(G)::S(A)
- S(d);OGATE::QAB(I)
- P(e);OGATE::QAB(I)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- B(a);SBLOCK,XP(G)::S(K)
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(d);OGATE::QAB(I)
- P(e);OGATE::QAB(I)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- B(a);OGATE::R(B)+P(C),XB(a)
- Refutation
- S(b);CHECK,XB(F)
- Try
- K(H);S_FLIGHT
- Vars
- S(b);N_GUARD,XB(F)::S(A)
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(d);OGATE::QAB(I)
- P(e);OGATE::QAB(I)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- B(a);OGATE::R(B)+P(C),XB(a)
- Refutation
- B(a);CHECK,XP(G)
- Try
- B(F);
- Vars
- B(a);SBLOCK,XP(G)::S(K)
- S(b);N_GUARD,XB(F)::S(A)
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(d);OGATE::QAB(I)
- P(e);OGATE::QAB(I)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- B(a);CHECK
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- Refutation
- B(a);CHECK,XB(F)
- Try
- B(F);
- Threat
- S(K)
- Vars
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(d);OGATE::QAB(I)
- P(e);::S(K),XP(e)
- Refutation
- B(a);CHECK
- Try
- B(F);
- Vars
- B(a);SBLOCK,XP(G)::S(K)
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(d);OGATE::QAB(I)
- P(e);OGATE::QAB(I)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- B(a);CHECK
- Try
- B(J);
- Vars
- B(a);SBLOCK,XP(G)::S(K)
- S(b);N_GUARD,XB(F)::S(A)
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- B(a);OGATE,P_PINB(F)::R(B)+P(C),XB(a)
- P(e);OGATE::QAB(I)
- Refutation
- S(d);XB(J)
- Try
- B(J);CHECK
- Vars
- P(e);OGATE,SBLOCK,XB(J)::QAB(I)
- Refutation
- K(c);S_FLIGHT,XB(J)
- Try
- R(B);
- Vars
- B(a);SBLOCK,XP(G)::S(K)
- S(b);N_GUARD,XB(F)::S(A)
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(d);OGATE::QAB(I)
- P(e);OGATE::QAB(I)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- B(a);P_PINB(F)
- Try
- R(B);
- Vars
- B(a);SBLOCK,XP(G)::S(K)
- S(b);N_GUARD,XR(B)::S(A)
- S(b);N_GUARD,XB(F)::S(A)
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(d);OGATE::QAB(I)
- P(e);OGATE::QAB(I)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- B(a);P_PINB(F)
- Try
- R(B);XB(a)
- Threat
- S(A)
- Vars
- S(b);N_GUARD,XR(B)::S(A)
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(d);OGATE::QAB(I)
- P(e);OGATE::QAB(I)
- Refutation
- S(b);XB(F)
- Try
- Q(I);CHECK
- Vars
- S(b);P_SPINS(b)::S(A)
- Refutation
- S(d);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- S(b);N_GUARD,XB(F)::S(A)
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- P(e);::QAB(I)
- Refutation
- P(e);XQ(I)
- Try
- Actual
- K(H);P-FLIGHT
- Vars
- B(a);SBLOCK,XP(G)::S(K)
- S(b);N_GUARD,XB(F)::S(A)
- S(b);N_GUARD,XP(G)::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(d);OGATE::QAB(I)
- P(e);OGATE::QAB(I)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- B(a);OGATE::R(B)+P(C),XB(a)
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).