MESON Chess Problem Database
Problem Display
PID: 162055 (3KR3/2nQn3/2p1b3/1p4Pp/3Nk3/1R1qN1B1/2Br1PP1/8 w - - 0 1)
Albertz, Heinrich
Promadas, 1928
#2
11 + 9
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qxc2
- 2.f3#
- 1...Re2
- 2.Bxd3#
- 1...Qxc2
- Tries
- 1.Sf3?
- threat
- 2.Sxd2#
- 2.Qd4#
- 1...Rxc2
- 2.Qxd3#
- 1...Rxf2
- 2.Qxd3#
- 2.Qd4#
- 1...Bxd7
- 2.Rb4#
- 1...Rd1
- 2.Qd4#
- 1...Re2
- 2.Bxd3#
- 2.Qxd3#
- 2.Qd4#
- 1...Bd5
- 2.Qf5#
- 1...Scd5
- 2.Qxe6#
- 1...Sed5
- 2.Qh7#
- 1...Sf5
- 2.Sxd2#
- 1...c5
- 2.Sxd2#
- 1...Qxc2!
- threat
- 1.Sdf5?
- threat
- 2.Qd4#
- 2.f3#
- 1...Qxc2
- 2.f3#
- 1...Rxc2
- 2.Qxd3#
- 2.f3#
- 1...Rxf2
- 2.Bxd3#
- 2.Qxd3#
- 2.Qd4#
- 1...Bxf5
- 2.Rb4#
- 1...Bxd7
- 2.Rb4#
- 2.f3#
- 1...Bd5
- 2.f3#
- 1...Scd5
- 2.Qxe6#
- 2.f3#
- 1...Sed5
- 2.f3#
- 1...c5
- 2.f3#
- 1...Sxf5!
- threat
- 1.Qxe6+?
- 1...Kxd4
- 2.Qe5#
- 1...Sxe6+!
- 1...Kxd4
- 1.Qd6?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Rxf2
- 2.Qe5#
- 1...Scd5
- 2.Qe5#
- 1...Sed5
- 2.Qe5#
- 1...Sg6!
- threat
- 1.Qxc7?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...Kxd4
- 2.Qe5#
- 1...Rxf2
- 2.Qe5#
- 1...Sd5
- 2.Qe5#
- 1...Sg6!
- threat
- 1.Sf3?
- Keys
- 1.Se2!
- threat
- 2.Sc3#
- 2.Qd4#
- 1...Qxc2
- 2.f3#
- 1...Rxc2
- 2.Qxd3#
- 1...Rxe2
- 2.Bxd3#
- 2.Qxd3#
- 1...Bxd7
- 2.Rb4#
- 1...Bd5
- 2.Qf5#
- 1...Scd5
- 2.Qxe6#
- 1...Sed5
- 2.Qh7#
- 1...Sf5
- 2.Sc3#
- 1...b4
- 2.Qd4#
- 1...c5
- 2.Sc3#
- threat
- 1.Se2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- Q(b);N_SPINQ(b),XB(A)::P(B)
- R(a);N_GUARD::B(A),XQ(b)
- Tries
- Try
- S(G);P_SPINQ(I)
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD,N_SPINQ(b),XB(A)::QAB1(I),XQ(b)
- B(g);N_GUARD,P_SPINS(i),XQ(I)::R(D)
- R(a);::QAR1(I)
- B(g);N_PINQ(I),P_SPINS(i)::QAB1(I)
- S(h);N_PINQ(I)::QAR2(I),XB(g)
- S(i);N_PINQ(I),P_SPINB(g)::QAB(I)
- S(i);P_SPINB(g)::S(G),XR(a)
- P(f);::S(G),XR(a)
- Refutation
- Q(b);N_SPINQ(b),XB(A)
- Try
- S(G);P_SPINQ(I)
- Threat
- DUALS(2)
- Vars
- Q(b);N_SPINQ(b),XB(A)::P(B)
- B(g);N_GUARD,P_SPINS(i),XS(G)::R(D)
- B(g);N_PINQ(I),P_SPINS(i)::P(B)
- S(i);N_PINQ(I),P_SPINB(g)::P(B)
- P(f);::P(B)
- Refutation
- S(i);P_SPINB(g),XS(G)
- Try
- Q(I);CHECK,P_SPINS(G),XB(g)
- Vars
- K(c);N_SPINQ(b),P-FLIGHT,XS(G)::QAB1(I)
- Refutation
- S(h);CHECK,XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(a);XP(B)::QAR1(I)
- S(h);::QAR1(I)
- S(i);P_SPINB(g)::QAR1(I)
- Refutation
- S(i);P_SPINB(g)
- Try
- Q(I);P_SPINS(G),XS(h)
- Threat
- DUALS(2)
- Vars
- K(c);N_SPINQ(b),P-FLIGHT,XS(G)::QAB1(I)
- R(a);XP(B)::QAR1(I)
- S(i);N_PINS(G),P_SPINB(g)::QAR1(I)
- Refutation
- S(i);P_SPINB(g)
- Try
- Actual
- S(G);P_SPINQ(I)
- Threat
- DUALS(2)
- Vars
- Q(b);N_SPINQ(b),XB(A)::P(B)
- R(a);N_GUARD,N_SPINQ(b),XB(A)::QAB1(I),XQ(b)
- B(g);N_GUARD,P_SPINS(i),XQ(I)::R(D)
- B(g);N_PINQ(I),P_SPINS(i)::QAB1(I)
- S(h);N_PINQ(I)::QAR2(I),XB(g)
- S(i);N_PINQ(I),P_SPINB(g)::QAB(I)
- S(i);P_SPINB(g)::S(G)
- P(d);::QAR1(I)
- P(f);::S(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).