MESON Chess Problem Database
Problem Display
PID: 198379 (4b2B/Q3p3/2n1nr2/2Pk1P2/2pP1r2/3N1P2/2Np2B1/3K4 w - - 0 1)
Snowdon, AR
Australasian Chess Magazine, 1920
#2
10 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxf3
- 2.Bxf3#
- 1...Rxd4
- 2.Se3#
- 1...Re4
- 2.fxe4#
- 1...Rg4
- 2.fxg4#
- 1...Rh4
- 2.f4#
- 1...R4xf5
- 2.f4#
- 1...R6xf5
- 2.Se3#
- 1...Rg6
- 2.Se3#
- 1...Rh6
- 2.Se3#
- 1...Rf7
- 2.Se3#
- 1...Rf8
- 2.Se3#
- 1...Bh5
- 2.Qd7#
- 1...Bg6
- 2.Qd7#
- 1...Bd7
- 2.Qxd7#
- 1...Bf7
- 2.Qd7#
- 1...Sb4
- 2.Sdxb4#
- 1...Scxd4
- 2.Scb4#
- 1...Sa5
- 2.Sdb4#
- 1...Se5
- 2.Sdb4#
- 1...Sxa7
- 2.Sdb4#
- 1...Sb8
- 2.Sdb4#
- 1...Scd8
- 2.Sdb4#
- 1...Sexd4
- 2.Se3#
- 1...Sxc5
- 2.Qxc5#
- 1...Sg5
- 2.Sxf4#
- 1...Sc7
- 2.Sxf4#
- 1...Sg7
- 2.Sxf4#
- 1...Sed8
- 2.Sxf4#
- 1...Sf8
- 2.Sxf4#
- 1...cxd3
- 2.Qa2#
- 1...c3
- 2.Qa2#
- 1...Rxf3
- Tries
- 1.Kxd2?
- 1...Rxf3
- 2.Bxf3#
- 1...Rxd4
- 2.Se3#
- 1...R4xf5
- 2.f4#
- 1...R6xf5
- 2.Se3#
- 1...Scxd4
- 2.Scb4#
- 1...Sxa7
- 2.Sdb4#
- 1...Sexd4
- 2.Se3#
- 1...Sxc5
- 2.Qxc5#
- 1...cxd3
- 2.Qa2#
- 1...Sb4
- 2.Sdxb4#
- 1...Sa5
- 2.Sdb4#
- 1...Se5
- 2.Sdb4#
- 1...Sb8
- 2.Sdb4#
- 1...Scd8
- 2.Sdb4#
- 1...Re4
- 2.fxe4#
- 1...Rg4
- 2.fxg4#
- 1...Rh4
- 2.f4#
- 1...Rg6
- 2.Se3#
- 1...Rh6
- 2.Se3#
- 1...Rf7
- 2.Se3#
- 1...Rf8
- 2.Se3#
- 1...Bh5
- 2.Qd7#
- 1...Bg6
- 2.Qd7#
- 1...Bd7
- 2.Qxd7#
- 1...Bf7
- 2.Qd7#
- 1...Sg5
- 2.Sxf4#
- 1...Sc7
- 2.Sxf4#
- 1...Sg7
- 2.Sxf4#
- 1...Sed8
- 2.Sxf4#
- 1...Sf8
- 2.Sxf4#
- 1...c3+!
- 1...Rxf3
- 1.Bh1?
- 1...Rxf3
- 2.Bxf3#
- 1...Rxd4
- 2.Se3#
- 1...R4xf5
- 2.f4#
- 1...R6xf5
- 2.Se3#
- 1...Scxd4
- 2.Scb4#
- 1...Sxa7
- 2.Sdb4#
- 1...Sexd4
- 2.Se3#
- 1...Sxc5
- 2.Qxc5#
- 1...cxd3
- 2.Qa2#
- 1...Sb4
- 2.Sdxb4#
- 1...Sa5
- 2.Sdb4#
- 1...Se5
- 2.Sdb4#
- 1...Sb8
- 2.Sdb4#
- 1...Scd8
- 2.Sdb4#
- 1...c3
- 2.Qa2#
- 1...Re4
- 2.fxe4#
- 1...Rg4
- 2.fxg4#
- 1...Rg6
- 2.Se3#
- 1...Rh6
- 2.Se3#
- 1...Rf7
- 2.Se3#
- 1...Rf8
- 2.Se3#
- 1...Bh5
- 2.Qd7#
- 1...Bg6
- 2.Qd7#
- 1...Bd7
- 2.Qxd7#
- 1...Bf7
- 2.Qd7#
- 1...Sg5
- 2.Sxf4#
- 1...Sc7
- 2.Sxf4#
- 1...Sg7
- 2.Sxf4#
- 1...Sed8
- 2.Sxf4#
- 1...Sf8
- 2.Sxf4#
- 1...Rh4!
- 1...Rxf3
- 1.Bxf6?
- threat
- 2.Se3#
- 1...Rxf3
- 2.Bxf3#
- 1...Scxd4
- 2.Scb4#
- 2.Sdb4#
- 1...Sxa7
- 2.Scb4#
- 2.Sdb4#
- 1...Sxc5
- 2.Qxc5#
- 1...Sb4
- 2.Scxb4#
- 2.Sdxb4#
- 1...Sa5
- 2.Scb4#
- 2.Sdb4#
- 1...Se5
- 2.Sdb4#
- 1...Sb8
- 2.Scb4#
- 2.Sdb4#
- 1...Scd8
- 2.Scb4#
- 2.Sdb4#
- 1...Re4
- 2.fxe4#
- 1...exf6!
- threat
- 1.Qa1?
- threat
- 2.Se3#
- 1...Rxf3
- 2.Bxf3#
- 1...Scxd4
- 2.Scb4#
- 1...Sb4
- 2.Scxb4#
- 2.Sdxb4#
- 1...Sa5
- 2.Scb4#
- 2.Sdb4#
- 1...Se5
- 2.Scb4#
- 2.Sdb4#
- 1...Sa7
- 2.Scb4#
- 2.Sdb4#
- 1...Sb8
- 2.Scb4#
- 2.Sdb4#
- 1...Scd8
- 2.Scb4#
- 2.Sdb4#
- 1...c3
- 2.Qa2#
- 1...Re4
- 2.fxe4#
- 1...Sxc5!
- threat
- 1.Qb7?
- threat
- 2.Sdb4#
- 1...Rxf3
- 2.Bxf3#
- 1...Rxd4
- 2.Se3#
- 2.Scb4#
- 1...Sxd4
- 2.Se3#
- 2.Scb4#
- 1...cxd3
- 2.Qb3#
- 1...c3
- 2.Qb3#
- 1...Sxc5!
- threat
- 1.Qa8?
- threat
- 2.Sdb4#
- 1...Rxf3
- 2.Bxf3#
- 1...Rxd4
- 2.Se3#
- 2.Scb4#
- 1...Sxd4
- 2.Se3#
- 2.Scb4#
- 1...cxd3
- 2.Qa2#
- 1...c3
- 2.Qa2#
- 1...Sxc5!
- threat
- 1.Kxd2?
- Keys
- 1.Bg7!
- 1...Rxf3
- 2.Bxf3#
- 1...Rxd4
- 2.Se3#
- 1...R4xf5
- 2.f4#
- 1...R6xf5
- 2.Se3#
- 1...Scxd4
- 2.Scb4#
- 1...Sxa7
- 2.Sdb4#
- 1...Sexd4
- 2.Se3#
- 1...Sxc5
- 2.Qxc5#
- 1...Sxg7
- 2.Sxf4#
- 1...cxd3
- 2.Qa2#
- 1...Sb4
- 2.Sdxb4#
- 1...Sa5
- 2.Sdb4#
- 1...Se5
- 2.Sdb4#
- 1...Sb8
- 2.Sdb4#
- 1...Scd8
- 2.Sdb4#
- 1...c3
- 2.Qa2#
- 1...Re4
- 2.fxe4#
- 1...Rg4
- 2.fxg4#
- 1...Rh4
- 2.f4#
- 1...Rg6
- 2.Se3#
- 1...Rh6
- 2.Se3#
- 1...Rf7
- 2.Se3#
- 1...Rf8
- 2.Se3#
- 1...Bh5
- 2.Qd7#
- 1...Bg6
- 2.Qd7#
- 1...Bd7
- 2.Qxd7#
- 1...Bf7
- 2.Qd7#
- 1...Sg5
- 2.Sxf4#
- 1...Sc7
- 2.Sxf4#
- 1...Sed8
- 2.Sxf4#
- 1...Sf8
- 2.Sxf4#
- 1...Rxf3
- 1.Bg7!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(c);OGATE,P_SPINR(c),XP(E)::B(C),XR(c)
- R(c);SBLOCK,XP(F)::S(B)
- R(c);OGATE::P(E),XR(c)
- R(c);OGATE::B(C)+P(E),XR(c)
- R(c);OGATE::B(C)+P(E)
- R(c);OGATE,XP(H)::B(C)+P(E)
- R(g);XP(H)::S(B)
- R(g);::S(B)
- B(i);N_GUARD,P_PINP(E)::QAR2(I)
- B(i);N_GUARD::QAR2(I)
- B(i);N_GUARD::QAR2(I),XB(i)
- S(e);N_GUARD::S(D),XS(e)
- S(e);N_GUARD,SBLOCK,XP(F)::S(B)
- S(e);N_GUARD::S(D)
- S(e);N_GUARD,XQ(I)::S(D)
- S(f);SBLOCK,XP(F)::S(B)
- S(f);OGATE,XP(G)::QAR1(I),XS(f)
- S(f);N_GUARD::S(D),XR(c)
- P(b);OGATEB,XS(D)::QAB(I)
- P(b);OGATEB::QAB(I)
- Tries
- Try
- K(A);P-FLIGHT,XP(a)
- Vars
- R(c);OGATE,P_SPINR(c),XP(E)::B(C),XR(c)
- R(c);P_PINS(D),SBLOCK,XP(F)::S(B)
- R(c);OGATE,XP(H)::B(C)+P(E)
- R(g);XP(H)::S(B)
- S(e);N_GUARD,SBLOCK,XP(F)::S(B)
- S(e);N_GUARD,XQ(I)::S(D)
- S(f);SBLOCK,XP(F)::S(B)
- S(f);OGATE,XP(G)::QAR1(I),XS(f)
- P(b);OGATEB,XS(D)::QAB(I)
- S(e);N_GUARD::S(D),XS(e)
- S(e);N_GUARD::S(D)
- R(c);OGATE::P(E),XR(c)
- R(c);OGATE::B(C)+P(E),XR(c)
- R(c);OGATE::B(C)+P(E)
- R(g);::S(B)
- B(i);N_GUARD::QAR2(I)
- B(i);N_GUARD::QAR2(I),XB(i)
- S(f);N_GUARD::S(D),XR(c)
- Refutation
- P(b);CHECK
- Try
- B(C);
- Vars
- R(c);OGATE,P_SPINR(c),XP(E)::B(C),XR(c)
- R(c);SBLOCK,XP(F)::S(B)
- R(c);OGATE,XP(H)::B(C)+P(E)
- R(g);XP(H)::S(B)
- S(e);N_GUARD,SBLOCK,XP(F)::S(B)
- S(e);N_GUARD,XQ(I)::S(D)
- S(f);SBLOCK,XP(F)::S(B)
- S(f);OGATE,XP(G)::QAR1(I),XS(f)
- P(b);OGATEB,XS(D)::QAB(I)
- S(e);N_GUARD::S(D),XS(e)
- S(e);N_GUARD::S(D)
- P(b);OGATEB::QAB(I)
- R(c);OGATE::P(E),XR(c)
- R(c);OGATE::B(C)+P(E),XR(c)
- R(g);::S(B)
- B(i);N_GUARD,P_PINP(E)::QAR2(I)
- B(i);N_GUARD::QAR2(I)
- B(i);N_GUARD::QAR2(I),XB(i)
- S(f);N_GUARD::S(D),XR(c)
- Refutation
- R(c);
- Try
- B(J);XR(g)
- Threat
- S(B)
- Vars
- R(c);OGATE,P_SPINR(c),XP(E)::B(C),XR(c)
- S(f);OGATE,XP(G)::QAR1(I),XS(f)
- S(e);N_GUARD::S(D)
- R(c);OGATE::P(E),XR(c)
- Refutation
- P(h);XB(J)
- Try
- Q(I);
- Threat
- S(B)
- Vars
- R(c);OGATE,P_SPINR(c),XP(E)::B(C),XR(c)
- S(e);N_GUARD,XP(F)::S(B)
- P(b);OGATEB::QAB(I)
- R(c);OGATE::P(E),XR(c)
- Refutation
- S(f);XP(G)
- Try
- Q(I);P_PINS(e)
- Threat
- S(D)
- Vars
- R(c);OGATE,P_SPINR(c),XP(E)::B(C),XR(c)
- P(b);OGATEB,XS(D)::QAB(I)
- P(b);OGATEB::QAB(I)
- Refutation
- S(f);XP(G)
- Try
- Q(I);P_PINS(e)
- Threat
- S(D)
- Vars
- R(c);OGATE,P_SPINR(c),XP(E)::B(C),XR(c)
- P(b);OGATEB,XS(D)::QAB(I)
- P(b);OGATEB::QAB(I)
- Refutation
- S(f);XP(G)
- Try
- Actual
- B(J);
- Vars
- R(c);OGATE,P_SPINR(c),XP(E)::B(C),XR(c)
- R(c);SBLOCK,XP(F)::S(B)
- R(c);OGATE,XP(H)::B(C)+P(E)
- R(g);XP(H)::S(B)
- S(e);N_GUARD,SBLOCK,XP(F)::S(B)
- S(e);N_GUARD,XQ(I)::S(D)
- S(f);SBLOCK,XP(F)::S(B)
- S(f);OGATE,XP(G)::QAR1(I),XS(f)
- S(f);N_GUARD,XB(J)::S(D),XR(c)
- P(b);OGATEB,XS(D)::QAB(I)
- S(e);N_GUARD::S(D),XS(e)
- S(e);N_GUARD::S(D)
- P(b);OGATEB::QAB(I)
- R(c);OGATE::P(E),XR(c)
- R(c);OGATE::B(C)+P(E),XR(c)
- R(c);OGATE::B(C)+P(E)
- R(g);::S(B)
- B(i);N_GUARD,P_PINP(E)::QAR2(I)
- B(i);N_GUARD::QAR2(I)
- B(i);N_GUARD::QAR2(I),XB(i)
- S(f);N_GUARD::S(D),XR(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).