MESON Chess Problem Database
Problem Display
PID: 196989 (2R5/4B3/8/2r2N2/p1N1Q3/K1k4P/2p1n2R/2n2B2 w - - 0 1)
Snowdon, AR
Australasian Chess Magazine, 1919
#2
9 + 6
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxc4
- 2.Bb4#
- 1...Ra5
- 2.Bb4#
- 1...Rd5
- 2.Bb4#
- 1...Re5
- 2.Bb4#
- 1...Rxf5
- 2.Bb4#
- 1...Rc6
- 2.Bb4#
- 1...Rc7
- 2.Bb4#
- 1...Rxc8
- 2.Bb4#
- 1...Sg1
- 2.Rxc2#
- 2.Qxc2#
- 2.Qe1#
- 2.Qd4#
- 1...Sg3
- 2.Rxc2#
- 2.Qxc2#
- 2.Qe1#
- 2.Qd4#
- 1...Sd4
- 2.Qe1#
- 2.Qxd4#
- 1...Sf4
- 2.Rxc2#
- 2.Qxc2#
- 2.Qe1#
- 2.Qd4#
- 1...Rxc4
- Tries
- 1.Sb2?
- threat
- 2.Qb4#
- 1...Rc4
- 2.Bb4#
- 1...Sa2
- 2.Qd3#
- 2.Qe3#
- 1...Sd3
- 2.Qxd3#
- 1...Sd4
- 2.Sxa4#
- 2.Rxc5#
- 2.Qe1#
- 2.Qxd4#
- 1...Kd2!
- threat
- 1.Se5?
- threat
- 2.Qb4#
- 1...Sd3
- 2.Qxd3#
- 1...Rc4
- 2.Bb4#
- 1...Sa2
- 2.Qd3#
- 2.Qe3#
- 1...Sd4
- 2.Rxc5#
- 2.Qe1#
- 2.Qxd4#
- 1...Kd2!
- threat
- 1.Sg3?
- 1...Rxc4
- 2.Bb4#
- 1...Rxc8
- 2.Bb4#
- 1...Sxg3
- 2.Rxc2#
- 1...Sd3
- 2.Sxe2#
- 1...Ra5
- 2.Bb4#
- 1...Rd5
- 2.Bb4#
- 1...Re5
- 2.Bb4#
- 1...Rf5
- 2.Bb4#
- 1...Rg5
- 2.Bb4#
- 1...Rh5
- 2.Bb4#
- 1...Rc6
- 2.Bb4#
- 1...Rc7
- 2.Bb4#
- 1...Sa2
- 2.Sxe2#
- 1...Sb3
- 2.Sxe2#
- 1...Sg1
- 2.Rxc2#
- 1...Sd4
- 2.Qe1#
- 1...Sf4
- 2.Rxc2#
- 1...Rb5!
- 1...Rxc4
- 1.Bxe2?
- threat
- 2.Qd4#
- 1...Rxf5
- 2.Bb4#
- 1...Rd5
- 2.Bb4#
- 1...Sb3
- 2.Qd3#
- 2.Qf3#
- 2.Qe3#
- 1...Sxe2!
- threat
- 1.Bf6+?
- 1...Sd4
- 2.Bxd4#
- 2.Rxc2#
- 2.Qxc2#
- 2.Qe1#
- 2.Qxd4#
- 1...Re5!
- 1...Sd4
- 1.Rxe2?
- threat
- 2.Rxc2#
- 2.Qxc2#
- 2.Qd4#
- 1...Rxf5
- 2.Se5#
- 2.Bb4#
- 2.Rxc2#
- 1...Sd3
- 2.Qd4#
- 1...Rd5
- 2.Bb4#
- 2.Rxc2#
- 2.Qxc2#
- 1...Sb3
- 2.Rxc2#
- 2.Re3#
- 2.Qxc2#
- 1...Sxe2!
- threat
- 1.Rxc5?
- 1...Sa2
- 2.Qf3#
- 2.Qe3#
- 1...Sb3
- 2.Qf3#
- 2.Qe3#
- 1...Sg1
- 2.Sb2#
- 2.Sd2#
- 2.Sce3#
- 2.Sa5#
- 2.Se5#
- 2.Sb6#
- 2.Scd6#
- 2.Bf6#
- 2.Rxc2#
- 2.Qxc2#
- 2.Qe1#
- 2.Qd4#
- 2.Qe5#
- 1...Sg3
- 2.Sb2#
- 2.Sd2#
- 2.Sce3#
- 2.Sa5#
- 2.Se5#
- 2.Sb6#
- 2.Scd6#
- 2.Bf6#
- 2.Rxc2#
- 2.Qxc2#
- 2.Qe1#
- 2.Qd4#
- 2.Qe5#
- 1...Sd4
- 2.Sb2#
- 2.Sd2#
- 2.Sce3#
- 2.Sa5#
- 2.Se5#
- 2.Sb6#
- 2.Scd6#
- 2.Qe1#
- 2.Qxd4#
- 1...Sf4
- 2.Sb2#
- 2.Sd2#
- 2.Sce3#
- 2.Sa5#
- 2.Se5#
- 2.Sb6#
- 2.Scd6#
- 2.Bf6#
- 2.Rxc2#
- 2.Qxc2#
- 2.Qe1#
- 2.Qd4#
- 2.Qe5#
- 1...Sd3!
- 1...Sa2
- 1.Qf3+?
- 1...Kxc4
- 2.Rxc5#
- 1...Sd3!
- 1...Kxc4
- 1.Qxe2?
- threat
- 2.Qe1#
- 2.Qxc2#
- 2.Qd2#
- 1...Rxf5
- 2.Qd2#
- 1...Sd3
- 2.Qxd3#
- 2.Qxc2#
- 1...Rd5
- 2.Bb4#
- 2.Qxc2#
- 1...Re5
- 2.Sxe5#
- 2.Bb4#
- 2.Qxc2#
- 2.Qd2#
- 2.Qxe5#
- 1...Sb3
- 2.Qd3#
- 2.Qf3#
- 2.Qxc2#
- 2.Qe3#
- 1...Sxe2!
- threat
- 1.Qe3+?
- 1...Kxc4
- 2.Rxc5#
- 1...Sd3!
- 1...Kxc4
- 1.Sb2?
- Keys
- 1.Sd4!
- 1...Kxc4
- 2.Rxc5#
- 1...Rxc4
- 2.Bb4#
- 1...Rxc8
- 2.Sb5#
- 1...Sxd4
- 2.Qe1#
- 1...Sd3
- 2.Sxe2#
- 1...Ra5
- 2.Bb4#
- 1...Rb5
- 2.Sxb5#
- 1...Rd5
- 2.Bb4#
- 1...Re5
- 2.Bb4#
- 1...Rf5
- 2.Bb4#
- 1...Rg5
- 2.Bb4#
- 1...Rh5
- 2.Bb4#
- 1...Rc6
- 2.Sb5#
- 1...Rc7
- 2.Sb5#
- 1...Sa2
- 2.Sxe2#
- 1...Sb3
- 2.Sxe2#
- 1...Sg1
- 2.Rxc2#
- 1...Sg3
- 2.Rxc2#
- 1...Sf4
- 2.Rxc2#
- 1...Kxc4
- 1.Sd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- R(f);OGATE,P_SPINR(f),XS(E)::B(H)
- R(f);OGATE::B(H)
- R(f);OGATE,XS(G)::B(H)
- R(f);OGATE,XR(I)::B(H)
- Tries
- Try
- S(E);P_PINR(f)
- Threat
- QAB1(F)
- Vars
- R(f);OGATE::B(H)
- S(a);N_GUARD::QAR1(F),XS(a)
- Refutation
- K(d);N_SPINR(f),P_SPINS(c),S_FLIGHT
- Try
- S(E);P_PINR(f)
- Threat
- QAB1(F)
- Vars
- S(a);N_GUARD::QAR1(F),XS(a)
- R(f);OGATE::B(H)
- Refutation
- K(d);N_SPINR(f),P_SPINS(c),S_FLIGHT
- Try
- S(G);
- Vars
- R(f);OGATE,P_SPINR(f),XS(E)::B(H)
- R(f);OGATE,XR(I)::B(H)
- S(c);OGATE,XS(G)::R1(B),XP(b)
- S(a);N_GUARD::S(G),XS(c)
- R(f);OGATE::B(H)
- S(c);OGATE::R1(B),XP(b)
- S(c);OGATE,SBLOCK::QAB(F)
- Refutation
- R(f);
- Try
- B(A);XS(c)
- Threat
- QAB1(F)
- Vars
- R(f);OGATE,XS(G)::B(H)
- R(f);OGATE::B(H)
- Refutation
- S(a);XB(A)
- Try
- B(H);CHECK
- Refutation
- R(f);P_SPINR(f)
- Try
- R(B);XS(c)
- Threat
- DUALS(3)
- Vars
- S(a);::QAB1(F)
- Refutation
- S(a);XR(B)
- Try
- R(I);XR(f)
- Refutation
- S(a);
- Try
- Q(F);CHECK
- Vars
- K(d);P-FLIGHT,P_SPINR(f),P_SPINS(c),XS(E)::R1(I),XR(f)
- Refutation
- S(a);P_SPINS(a)
- Try
- Q(F);XS(c)
- Threat
- DUALS(3)
- Vars
- R(f);XS(G)::QAB1(F)
- Refutation
- S(a);XQ(F)
- Try
- Q(F);CHECK
- Vars
- K(d);P-FLIGHT,P_SPINR(f),P_SPINS(c),XS(E)::R1(I),XR(f)
- Refutation
- S(a);P_SPINS(a)
- Try
- Actual
- S(G);
- Vars
- K(d);OGATEB,P-FLIGHT,P_SPINR(f),P_SPINS(c),XS(E)::R1(I),XR(f)
- R(f);OGATE,P_SPINR(f),XS(E)::B(H)
- R(f);N_GUARD,XR(I)::S(G)
- S(c);OGATE,SBLOCK,XS(G)::QAB(F)
- S(a);N_GUARD::S(G),XS(c)
- R(f);OGATE::B(H)
- R(f);N_GUARD::S(G),XR(f)
- R(f);N_GUARD::S(G)
- S(c);OGATE::R1(B),XP(b)
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).