MESON Chess Problem Database
Problem Display
PID: 151373 (2K1R3/3R1p2/8/p2nbPp1/NPpkppQ1/2p5/5PB1/1nN3B1 w - - 0 1)
Maleika, Gerhard
4th Prize, Die Schwalbe, 2013
#2
11 + 11
| 23 | Die Schwalbe | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Bd6
- 2.Rxe4#
- 1...Bf6
- 2.Rxe4#
- 1...Bc7
- 2.Rxe4#
- 1...Bg7
- 2.Rxe4#
- 1...Bb8
- 2.Rxe4#
- 1...Bh8
- 2.Rxe4#
- 1...Sa3
- 2.Qd1#
- 1...e3
- 2.Rxd5#
- 2.fxe3#
- 1...Bd6
- Tries
- 1.Sc5?
- threat
- 2.Se2#
- 1...f3
- 2.Qxe4#
- 1...axb4!
- threat
- 1.Sb6?
- threat
- 2.Rxd5#
- 1...Bd6
- 2.Rxe4#
- 1...c2!
- threat
- 1.Rxe5?
- threat
- 2.Rxe4#
- 2.Rexd5#
- 2.Rdxd5#
- 1...Sd2
- 2.Rexd5#
- 2.Rdxd5#
- 1...e3
- 2.Re4#
- 2.Rexd5#
- 2.Rdxd5#
- 1...Kxe5!
- threat
- 1.Qe2?
- threat
- 2.Qxe4#
- 1...e3
- 2.Rxd5#
- 1...f3
- 2.Qe3#
- 1...Sd2!
- threat
- 1.Qf3?
- threat
- 2.Se2#
- 2.Qxe4#
- 1...Sd2
- 2.Se2#
- 2.Qxc3#
- 1...e3
- 2.Rxd5#
- 2.Qe4#
- 2.Qxd5#
- 1...exf3!
- threat
- 1.Qh3?
- threat
- 2.Se2#
- 1...e3
- 2.Rxd5#
- 1...f3!
- threat
- 1.Qg3?
- threat
- 2.Se2#
- 1...e3
- 2.Rxd5#
- 1...f3
- 2.Qxe5#
- 1...fxg3!
- threat
- 1.Qxf4?
- threat
- 2.Qe3#
- 2.Qxe5#
- 2.Qxe4#
- 2.f3#
- 1...Bxf4
- 2.Rxe4#
- 1...Sd2
- 2.Qe3#
- 2.Qxe5#
- 2.f3#
- 1...Bd6
- 2.Rxe4#
- 2.Qxe4#
- 1...Bf6
- 2.Rxe4#
- 2.Qe3#
- 2.Qxe4#
- 2.f3#
- 1...Bc7
- 2.Rxe4#
- 2.Qe3#
- 2.Qxe4#
- 2.f3#
- 1...Bg7
- 2.Rxe4#
- 2.Qe3#
- 2.Qxe4#
- 2.f3#
- 1...Bb8
- 2.Rxe4#
- 2.Qe3#
- 2.Qxe4#
- 2.f3#
- 1...Bh8
- 2.Rxe4#
- 2.Qe3#
- 2.Qxe4#
- 2.f3#
- 1...f6
- 2.Qe3#
- 2.Qxe4#
- 2.f3#
- 1...gxf4!
- threat
- 1.Sc5?
- Keys
- 1.Bxe4!
- threat
- 2.f3#
- 1...Kxe4
- 2.f3#
- 1...Bd6
- 2.Se2#
- 1...f3
- 2.Rxd5#
- threat
- 1.Bxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- B(i);N_SPINS(h),OGATE::R1(K),XP(e)
- B(i);OGATE::R1(K),XP(e)
- S(a);N_GUARD::QAR(G)
- Tries
- Try
- S(E);
- Threat
- S(A)
- Vars
- P(f);OGATE,P_SPINP(e)::QAR1(G),XP(e)
- Refutation
- P(g);XP(F)
- Try
- S(E);
- Threat
- R1(I),XS(h)
- Vars
- B(i);N_SPINS(h),OGATE::R1(K),XP(e)
- Refutation
- P(b);
- Try
- R(K);XB(i)
- Threat
- DUALS(3)
- Refutation
- K(d);N_SPINS(h),S_FLIGHT,XR(K)
- Try
- Q(G);
- Threat
- QAR1(G),XP(e)
- Vars
- P(e);::R1(I),XS(h)
- P(f);N_GUARD::QAB1(G)
- Refutation
- S(a);
- Try
- Q(G);
- Threat
- DUALS(2)
- Refutation
- P(e);XQ(G)
- Try
- Q(G);
- Threat
- S(A)
- Vars
- P(e);::R1(I),XS(h)
- Refutation
- P(f);
- Try
- Q(G);
- Threat
- S(A)
- Vars
- P(e);::R1(I),XS(h)
- P(f);OGATE::QAB1(G),XB(i)
- Refutation
- P(f);XQ(G)
- Try
- Q(G);P_PINP(e),XP(f)
- Threat
- DUALS(4)
- Vars
- B(i);N_SPINP(e),OGATE,XQ(G)::R1(K),XP(e)
- Refutation
- P(j);N_SPINP(e),XQ(G)
- Try
- Actual
- B(D);XP(e)
- Threat
- B(B)+P(C)
- Vars
- K(d);N_SPINS(h),P-FLIGHT,P_SPINB(i),P_SPINP(f),XB(D)::P(C)
- B(i);N_SPINS(h)::S(A)
- P(f);::R1(I),XS(h)
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).