MESON Chess Problem Database
Problem Display
PID: 267468 (2R1N3/1p2PKp1/1p1P4/1P1kpp2/1P1N1pQ1/4Rq1r/bBp3B1/8 w - - 0 1)
Witt, Andreas
Zadachi i Etyudi, 2013
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...exd4
- 2.Qxf5#
- 1...e4
- 2.Qxf5#
- 1...exd4
- Tries
- 1.Se2?
- threat
- 2.Rxe5#
- 1...fxe3
- 2.Sc3#
- 1...e4
- 2.Qxf5#
- 1...Qe4!
- threat
- 1.Sb3?
- threat
- 2.Rxe5#
- 1...fxe3
- 2.Qc4#
- 1...e4
- 2.Qxf5#
- 1...Qe4!
- threat
- 1.Sxf3?
- threat
- 2.Rxe5#
- 1...e4
- 2.Qxf5#
- 1...fxe3!
- threat
- 1.Sxf5?
- threat
- 2.Rxe5#
- 1...fxe3
- 2.Sc7#
- 1...Qe4
- 2.Bxe4#
- 1...e4!
- threat
- 1.Se6?
- threat
- 2.Rxe5#
- 1...fxe3
- 2.S6c7#
- 1...e4
- 2.Qxf5#
- 1...Qe4!
- threat
- 1.Bxf3+?
- 1...e4
- 2.Qxf5#
- 1...Rxf3!
- 1...e4
- 1.Rc6?
- threat
- 2.Sc7#
- 1...e4
- 2.Qxf5#
- 1...bxc6!
- threat
- 1.Qxf5?
- threat
- 2.Rxe5#
- 2.Qe6#
- 2.Qxe5#
- 1...Qe4
- 2.Bxe4#
- 2.Qxe4#
- 2.Qe6#
- 1...Rh5
- 2.Bxf3#
- 2.Rxe5#
- 2.Qe6#
- 1...Rh6
- 2.Bxf3#
- 2.Rxe5#
- 2.Qxe5#
- 1...fxe3!
- threat
- 1.d7?
- threat
- 2.d8Q#
- 2.d8R#
- 1...Qxg2
- 2.d8Q#
- 2.d8R#
- 1...fxe3
- 2.d8Q#
- 2.d8R#
- 1...exd4
- 2.Qxf5#
- 2.d8Q#
- 2.d8R#
- 1...fxg4
- 2.d8Q#
- 2.d8R#
- 1...e4
- 2.Qxf5#
- 1...c1Q
- 2.d8Q#
- 2.d8R#
- 1...c1S
- 2.d8Q#
- 2.d8R#
- 1...c1B
- 2.d8Q#
- 2.d8R#
- 1...c1R
- 2.d8Q#
- 2.d8R#
- 1...Qe4
- 2.d8Q#
- 2.d8R#
- 1...Rh1
- 2.d8Q#
- 2.d8R#
- 1...Rh2
- 2.d8Q#
- 2.d8R#
- 1...Rg3
- 2.d8Q#
- 2.d8R#
- 1...Rh4
- 2.d8Q#
- 2.d8R#
- 1...Rh5
- 2.d8Q#
- 2.d8R#
- 1...Rh7
- 2.d8Q#
- 2.d8R#
- 1...Rh8
- 2.d8Q#
- 2.d8R#
- 1...Bb1
- 2.d8Q#
- 2.d8R#
- 1...Bb3
- 2.d8Q#
- 2.d8R#
- 1...Bc4
- 2.d8Q#
- 2.d8R#
- 1...g5
- 2.d8Q#
- 2.d8R#
- 1...g6
- 2.d8Q#
- 2.d8R#
- 1...Rh6!
- threat
- 1.Se2?
- Keys
- 1.Sxc2!
- threat
- 2.Rxe5#
- 1...fxe3
- 2.Sxe3#
- 1...Qe4
- 2.Qd1#
- 1...e4
- 2.Qxf5#
- threat
- 1.Sxc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- P(g);OGATEB,XS(E)::QAR2(F),XP(h)
- P(g);N_SPINQ(c),OGATEB::QAR2(F),XP(h)
- Tries
- Try
- S(E);
- Threat
- R1(C),XP(g)
- Vars
- P(e);XR(C)::S(E)
- P(g);N_SPINQ(c),OGATEB::QAR2(F),XP(h)
- Refutation
- Q(c);
- Try
- S(E);
- Threat
- R1(C),XP(g)
- Vars
- P(e);OGATE,XR(C)::QAB1(F)
- P(g);N_SPINQ(c),OGATEB::QAR2(F),XP(h)
- Refutation
- Q(c);
- Try
- S(E);XQ(c)
- Threat
- R1(C),XP(g)
- Vars
- P(g);OGATEB::QAR2(F),XP(h)
- Refutation
- P(e);XR(C)
- Try
- S(E);XP(h)
- Threat
- R1(C),XP(g)
- Vars
- P(e);P_PINS(E),XR(C)::S(L)
- Q(c);OGATE::B(B),XQ(c)
- Refutation
- P(g);N_SPINQ(c)
- Try
- S(E);
- Threat
- R1(C),XP(g)
- Vars
- P(e);XR(C)::S(E)
- P(g);N_SPINQ(c),OGATEB::QAR2(F),XP(h)
- Refutation
- Q(c);
- Try
- B(B);CHECK,XQ(c)
- Vars
- P(g);P_SPINP(g),S_CUTR(d)::QAR2(F),XP(h)
- Refutation
- R(d);XB(B)
- Try
- R(K);
- Threat
- S(L)
- Vars
- P(g);N_SPINQ(c),OGATEB::QAR2(F),XP(h)
- Refutation
- P(j);XR(K)
- Try
- Q(F);P_PINP(g),XP(h)
- Threat
- DUALS(3)
- Refutation
- P(e);P_PINQ(F),XR(C)
- Try
- P(H);
- Threat
- P=Q
- Vars
- Q(c);N_SPINQ(c),XB(B)::P=Q
- P(e);XR(C)::P=Q
- P(h);XQ(F)::P=Q
- P(g);N_SPINQ(c),OGATEB::QAR2(F),XP(h)
- P(b);::P=Q
- Q(c);::P=Q
- R(d);::P=Q
- B(a);::P=Q
- P(k);::P=Q
- Refutation
- R(d);
- Try
- Actual
- S(E);XP(b)
- Threat
- R1(C),XP(g)
- Vars
- P(e);XR(C)::S(E),XP(e)
- Q(c);OGATE::QAR(F)
- P(g);N_SPINQ(c),OGATEB::QAR2(F),XP(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).