MESON Chess Problem Database
Problem Display
PID: 7170 (B4r2/3P2p1/1Prk1B2/1pNp1pRb/1K3p2/4N1n1/2Qnpq2/3R4 w - - 0 1)
Mira-Kraft, Edwin
Schach, 1998
#2
10 + 13
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Rxd5#
- 1...Sdf1
- 2.Rxd5#
- 1...Sb3
- 2.Rxd5#
- 1...Sf3
- 2.Rxd5#
- 1...Sc4
- 2.Rxd5#
- 1...Sde4
- 2.Rxd5#
- 1...Sgf1
- 2.Sxf5#
- 1...Sh1
- 2.Sxf5#
- 1...Sge4
- 2.Sxf5#
- 1...Sb1
- Tries
- 1.Se4+?
- 1...Kxd7
- 2.Qxc6#
- 1...Sdxe4
- 2.Qxc6#
- 1...Sgxe4
- 2.Qxc6#
- 1...dxe4
- 2.Qxc6#
- 1...fxe4
- 2.Qxc6#
- 1...Ke6!
- 1...Kxd7
- 1.Qxf5?
- threat
- 2.Sb7#
- 2.Qe6#
- 2.Qxd5#
- 2.Qe5#
- 1...Qxe3
- 2.Sb7#
- 2.Qxd5#
- 1...Rxb6
- 2.Qe5#
- 1...Rxf6
- 2.Qe5#
- 2.d8Q#
- 1...Sxf5
- 2.Sxf5#
- 1...gxf6
- 2.Qe6#
- 1...Qg2
- 2.Sb7#
- 2.Qe6#
- 2.Qxf4#
- 2.Qe5#
- 1...Qf3
- 2.Sb7#
- 2.Qe6#
- 2.Qe5#
- 1...Rc7
- 2.Qe6#
- 2.Qxd5#
- 2.Qe5#
- 1...Rcc8
- 2.Qe6#
- 2.Qxd5#
- 2.Qe5#
- 1...Rb8
- 2.Qe6#
- 2.Qxd5#
- 2.Qe5#
- 1...Re8
- 2.Sb7#
- 2.Qxd5#
- 1...Bf3
- 2.Sb7#
- 2.Qe6#
- 2.Qxf4#
- 2.Qe5#
- 1...Bg4
- 2.Sb7#
- 2.Qxd5#
- 2.Qe5#
- 1...Bf7
- 2.Sb7#
- 2.Qe5#
- 1...Sf3
- 2.Sb7#
- 2.Rxd5#
- 2.Qe6#
- 2.Qxd5#
- 1...Sc4
- 2.Sb7#
- 2.Rxd5#
- 2.Qe6#
- 2.Qxd5#
- 1...d4
- 2.Sb7#
- 2.Qe6#
- 2.Qd5#
- 2.Qe5#
- 1...Rxc5!
- threat
- 1.Se4+?
- Keys
- 1.Qe4!
- threat
- 2.Be7#
- 2.Qxd5#
- 2.Qe5#
- 2.Qe6#
- 2.Qe7#
- 1...Qxe3
- 2.Be7#
- 1...Rxc5
- 2.Qe7#
- 1...Rxb6
- 2.Qe5#
- 1...Rxf6
- 2.d8Q#
- 2.d8R#
- 1...Sdxe4
- 2.Rxd5#
- 1...Sgxe4
- 2.Sxf5#
- 1...fxe3
- 2.Be7#
- 2.Qe5#
- 2.Qe6#
- 2.Qe7#
- 1...dxe4
- 2.Rxd2#
- 1...fxe4
- 2.Rxd5#
- 1...gxf6
- 2.Qe6#
- 1...Qg2
- 2.Be7#
- 2.Qxf4#
- 2.Qe5#
- 2.Qe6#
- 2.Qe7#
- 1...Qf3
- 2.Be7#
- 2.Qe5#
- 2.Qe6#
- 2.Qe7#
- 1...Rf7
- 2.Qxd5#
- 2.Qe5#
- 2.Qe6#
- 1...Re8
- 2.Qxd5#
- 1...Bf3
- 2.Be7#
- 2.Qxf4#
- 2.Qe5#
- 2.Qe6#
- 2.Qe7#
- 1...Bf7
- 2.Be7#
- 2.Qe5#
- 2.Qe7#
- 1...Sf3
- 2.Be7#
- 2.Rxd5#
- 2.Qxd5#
- 2.Qe6#
- 2.Qe7#
- 1...Sc4
- 2.Be7#
- 2.Rxd5#
- 2.Qxd5#
- 2.Qe6#
- 2.Qe7#
- 1...d4
- 2.Be7#
- 2.Qd5#
- 2.Qxc6#
- 2.Qxd4#
- 2.Qe5#
- 2.Qe6#
- 2.Qe7#
- threat
- 1.Qe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 7
- Sets
- S(a);OGATE,P_SPINP(g)::R1(A),XP(g)
- S(d);N_GUARD::S(C),XP(h)
- Tries
- Try
- S(E);CHECK
- Vars
- K(k);P-FLIGHT,XP(I)::QAB1(B),XR(j)
- S(a);P_SPINP(g),XS(E)::QAR1(B),XR(j)
- S(d);XS(E)::QAR1(B),XR(j)
- P(g);P_SPINS(a),XS(E)::QAR1(B),XR(j)
- P(h);XS(E)::QAR1(B),XR(j)
- Refutation
- K(k);P-FLIGHT
- Try
- Q(B);XP(h)
- Threat
- DUALS(4)
- Vars
- R(j);XP(G)::QAB1(B)
- S(d);XQ(B)::S(C),XS(d)
- P(l);XB(H)::QAR1(B)
- Refutation
- R(j);XS(E)
- Try
- Actual
- Q(B);
- Threat
- DUALS(5)
- Vars
- Q(c);XS(C)::B(H)
- R(j);XS(E)::QAB1(B)
- R(j);XP(G)::QAB1(B)
- R(m);N_GUARD,XB(H)::P=Q
- S(a);OGATE,P_SPINP(g),XQ(B)::R1(A),XP(g)
- S(d);N_GUARD,XQ(B)::S(C),XP(h)
- P(g);OGATEB,P_SPINS(a),XQ(B)::R(A),XS(a)
- P(h);OGATE,XQ(B)::R1(F),XP(g)
- P(l);XB(H)::QAR1(B)
- R(m);::QAR1(B),XP(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).