MESON Chess Problem Database
Problem Display
PID: 135192 (3B1rnb/1bQ5/pr2k1Pp/P1Pp3N/1p1RPP2/1K3N2/8/6R1 w - - 0 1)
Schroder, Jochen C
Die Schwalbe, 2009
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Qd6#
- 1...Rd6
- 2.Qxd6#
- 1...Rxf4
- 2.Sxf4#
- 1...Rf7
- 2.Qxf7#
- 1...Rxd8
- 2.Qf7#
- 2.f5#
- 1...Re8
- 2.Qf7#
- 2.f5#
- 1...Bc6
- 2.Qd6#
- 1...Ba8
- 2.Qc8#
- 1...Bc8
- 2.Qxc8#
- 1...Bxd4
- 2.Sxd4#
- 1...Bf6
- 2.f5#
- 1...Bg7
- 2.Sxg7#
- 1...Sf6
- 2.Qe7#
- 2.f5#
- 1...Se7
- 2.Qxe7#
- 1...dxe4
- 2.Qd7#
- 1...Rb5
- Tries
- 1.Se5?
- threat
- 2.Qd7#
- 1...Rxf4
- 2.Sxf4#
- 1...Rxd8
- 2.Qf7#
- 2.f5#
- 1...Rd6
- 2.Qxd6#
- 1...Rf7
- 2.Qxf7#
- 1...Bc6
- 2.Qd6#
- 1...Bc8
- 2.Qxb6#
- 2.Qxc8#
- 1...Sf6
- 2.Qe7#
- 2.f5#
- 1...Bxe5!
- threat
- 1.Sf6?
- threat
- 2.Qe5#
- 2.Qd7#
- 2.f5#
- 1...Rxd8
- 2.Qe5#
- 2.Qf7#
- 1...Bxf6
- 2.f5#
- 1...Sxf6
- 2.Qe7#
- 2.f5#
- 1...dxe4
- 2.Qe5#
- 2.Qd7#
- 1...Se7
- 2.Qe5#
- 2.Qxe7#
- 1...Rd6
- 2.Qxd6#
- 2.f5#
- 1...Rf7
- 2.Qe5#
- 2.Qxf7#
- 2.f5#
- 1...Bc6
- 2.Qe5#
- 2.Qd6#
- 2.f5#
- 1...Bc8
- 2.Qe5#
- 2.Qxb6#
- 2.Qxc8#
- 2.f5#
- 1...Rxf6!
- threat
- 1.Bf6?
- threat
- 2.f5#
- 1...dxe4
- 2.Qe5#
- 2.Qd7#
- 1...Se7
- 2.Qxe7#
- 1...Rxf6!
- threat
- 1.Rxd5?
- threat
- 2.Qd7#
- 1...Rxd8
- 2.Qf7#
- 2.f5#
- 1...Rd6
- 2.Rxd6#
- 2.Qxd6#
- 1...Rf7
- 2.Qxf7#
- 1...Bc6
- 2.Rd6#
- 2.Qd6#
- 1...Bc8
- 2.Qxb6#
- 2.Qxc8#
- 1...Sf6
- 2.Sd4#
- 2.Re5#
- 2.Qe5#
- 2.Qe7#
- 2.f5#
- 1...Bxd5+!
- threat
- 1.Qxb6+?
- 1...Bc6
- 2.Qxc6#
- 1...Kd7!
- 1...Bc6
- 1.exd5+?
- 1...Kf5
- 2.Sh4#
- 1...Bxd5+!
- 1...Kf5
- 1.axb6?
- threat
- 2.Qd6#
- 1...Rxd8
- 2.Qf7#
- 2.f5#
- 1...dxe4
- 2.Qd7#
- 1...Be5!
- threat
- 1.Se5?
- Keys
- 1.Rg5!
- 1...Rxf4
- 2.Sxf4#
- 1...Rxd8
- 2.Qf7#
- 2.f5#
- 1...Bxd4
- 2.Sxd4#
- 1...dxe4
- 2.Qd7#
- 1...hxg5
- 2.Sxg5#
- 1...Rc6
- 2.exd5#
- 1...Rb5
- 2.Qd6#
- 1...Rd6
- 2.Qxd6#
- 1...Rf5
- 2.exf5#
- 1...Rf6
- 2.Re5#
- 1...Rf7
- 2.Qxf7#
- 1...Re8
- 2.Qf7#
- 2.f5#
- 1...Bc6
- 2.Qd6#
- 1...Ba8
- 2.Qc8#
- 1...Bc8
- 2.Qxc8#
- 2.exd5#
- 1...Be5
- 2.Rxe5#
- 1...Bf6
- 2.f5#
- 1...Bg7
- 2.Sxg7#
- 1...Sf6
- 2.Re5#
- 2.Qe7#
- 2.f5#
- 1...Se7
- 2.Qxe7#
- 1...Rxf4
- 1.Rg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- R(d);N_GUARD::QAR1(K)
- R(d);N_GUARD::QAR1(K),XR(d)
- R(h);XP(F)::S(I),XR(h)
- R(h);N_GUARD::QAB1(K),XR(h)
- B(g);S_CUTR(d)::QAR1(K)
- B(g);N_GUARD::QAB(K)
- B(g);N_GUARD::QAB(K),XB(g)
- B(j);XR(D)::S(C),XB(j)
- B(j);S_CUTR(h)::P(F)
- B(j);N_GUARD::S(I),XB(j)
- S(i);N_GUARD::QAR1(K),XS(i)
- P(b);XP(E)::QAB1(K)
- Tries
- Try
- S(C);
- Threat
- QAB1(K)
- Vars
- R(h);XP(F)::S(I),XR(h)
- R(d);N_GUARD::QAR1(K),XR(d)
- R(h);N_GUARD::QAB1(K),XR(h)
- B(g);S_CUTR(d)::QAR1(K)
- Refutation
- B(j);XS(C)
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- B(j);XS(I)::P(F)
- Refutation
- R(h);XS(I)
- Try
- B(L);
- Threat
- P(F)
- Vars
- S(i);N_GUARD::QAR1(K),XS(i)
- Refutation
- R(h);XB(L)
- Try
- R(D);XP(b)
- Threat
- QAB1(K)
- Vars
- R(h);N_GUARD::QAB1(K),XR(h)
- Refutation
- B(g);CHECK,XR(D)
- Try
- Q(K);CHECK,XR(d)
- Vars
- B(g);N_GUARD,P_SPINB(g)::QAR2(K),XB(g)
- Refutation
- K(e);P_SPINP(b),S_FLIGHT
- Try
- P(E);CHECK,XP(b)
- Vars
- K(e);S_FLIGHT::S(C)
- Refutation
- B(g);CHECK,XP(E)
- Try
- P(G);XR(d)
- Threat
- QAR1(K)
- Vars
- P(b);XP(E)::QAB1(K)
- Refutation
- B(j);
- Try
- Actual
- R(A);
- Vars
- R(h);XP(F)::S(I),XR(h)
- B(j);XR(D)::S(C),XB(j)
- P(b);XP(E)::QAB1(K)
- P(f);XR(A)::S(C),XP(f)
- R(d);S_CUTB(g)::P(E),XP(b)
- R(d);N_GUARD::QAR1(K)
- R(d);N_GUARD::QAR1(K),XR(d)
- R(h);OGATE::P(E),XR(h)
- R(h);S_CUTB(j)::R1(A)
- R(h);N_GUARD::QAB1(K),XR(h)
- B(g);S_CUTR(d)::QAR1(K)
- B(g);N_GUARD::QAB(K)
- B(j);N_GUARD::R1(A),XB(j)
- B(j);S_CUTR(h)::P(F)
- B(j);N_GUARD::S(I),XB(j)
- S(i);N_GUARD::QAR1(K),XS(i)
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).