MESON Chess Problem Database
Problem Display
PID: 206554 (5R1r/6p1/1R2BP2/4k1p1/4P2Q/2N1P3/1r2bNP1/B5nK w - - 0 1)
Heidrich, Gerhard
Dresdner Volkszeitung, 1925
#2
12 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Sxb1#
- 1...Ra2
- 2.Sxa2#
- 1...Rb5
- 2.Sxb5#
- 1...Rxf8
- 2.Qxg5#
- 1...Rg8
- 2.Qg3#
- 2.Qxg5#
- 2.Qh2#
- 1...Bd1
- 2.Sd3#
- 1...Bf1
- 2.Sg4#
- 1...Bd3
- 2.Sxd3#
- 2.Sg4#
- 1...Bf3
- 2.Sd3#
- 1...Bc4
- 2.Sg4#
- 1...Bg4
- 2.Sd3#
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 1...Bh5
- 2.Sd3#
- 2.Qg3#
- 2.Qxg5#
- 2.Qh2#
- 1...Ba6
- 2.Sg4#
- 1...Sf3
- 2.Sg4#
- 1...Rb1
- Tries
- 1.Sxe2?
- threat
- 2.Sd3#
- 2.Bxb2#
- 1...Rxf8
- 2.Bxb2#
- 2.Qxg5#
- 1...Sxe2
- 2.Sd3#
- 1...gxh4
- 2.Bxb2#
- 1...Sf3
- 2.Sd3#
- 1...g4
- 2.Bxb2#
- 1...Rxh4+!
- threat
- 1.Bxb2?
- threat
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Sxe2#
- 2.Sa4#
- 2.Sb5#
- 2.Sd5#
- 1...Sf3
- 2.Sg4#
- 1...Bd1
- 2.Sd3#
- 2.Sb1#
- 2.Scxd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sb5#
- 2.Sd5#
- 1...Bf1
- 2.Sg4#
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sb5#
- 2.Sd5#
- 1...Bd3
- 2.Sxd3#
- 2.Sg4#
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sb5#
- 2.Sd5#
- 1...Bf3
- 2.Sd3#
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sb5#
- 2.Sd5#
- 1...Bc4
- 2.Sg4#
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sb5#
- 2.Sd5#
- 1...Bg4
- 2.Sd3#
- 2.Sxg4#
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sb5#
- 2.Sd5#
- 1...Bb5
- 2.Sg4#
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sxb5#
- 2.Sd5#
- 1...Bh5
- 2.Sd3#
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sb5#
- 2.Sd5#
- 2.Qg3#
- 2.Qxg5#
- 2.Qh2#
- 1...Ba6
- 2.Sg4#
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se2#
- 2.Sa4#
- 2.Sb5#
- 2.Sd5#
- 1...Rxh4+!
- threat
- 1.Bh3?
- threat
- 2.Re6#
- 2.Qg3#
- 2.Qxg5#
- 1...Rxb6
- 2.Sb5#
- 2.Qg3#
- 1...Rxh4
- 2.Re6#
- 2.Re8#
- 1...gxh4
- 2.Re6#
- 1...gxf6
- 2.Re6#
- 2.Qg3#
- 1...Sf3
- 2.Sg4#
- 2.Re6#
- 2.Qg3#
- 1...Rh5
- 2.Re6#
- 2.Re8#
- 2.Qg3#
- 1...Bc4
- 2.Sg4#
- 2.Qg3#
- 2.Qxg5#
- 1...Bg4
- 2.Sd3#
- 2.Sxg4#
- 2.Qg3#
- 1...g4
- 2.Qg3#
- 2.Qg5#
- 1...Sxh3!
- threat
- 1.Bc4?
- threat
- 2.Re6#
- 1...Rxb6
- 2.Sb5#
- 1...Bxc4
- 2.Sg4#
- 1...Bg4
- 2.Sd3#
- 2.Sxg4#
- 1...Rxh4+!
- threat
- 1.Bd5?
- threat
- 2.Re6#
- 1...Rxb6
- 2.Sb5#
- 1...Bg4
- 2.Sd3#
- 2.Sxg4#
- 1...Rxh4+!
- threat
- 1.Bf5?
- threat
- 2.Re6#
- 1...Rxb6
- 2.Sb5#
- 1...Bc4
- 2.Sg4#
- 1...Rxh4+!
- threat
- 1.Bd7?
- threat
- 2.Re6#
- 1...Rxb6
- 2.Sb5#
- 1...Bc4
- 2.Sg4#
- 1...Bg4
- 2.Sd3#
- 2.Sxg4#
- 1...Rxh4+!
- threat
- 1.Bf7?
- threat
- 2.Re6#
- 1...Rxb6
- 2.Sb5#
- 1...Bc4
- 2.Sg4#
- 1...Bg4
- 2.Sd3#
- 2.Sxg4#
- 1...Rxh4+!
- threat
- 1.Bc8?
- threat
- 2.Re6#
- 1...Rxb6
- 2.Sb5#
- 1...Bc4
- 2.Sg4#
- 1...Bg4
- 2.Sd3#
- 2.Sxg4#
- 1...Rxh4+!
- threat
- 1.Bg8?
- threat
- 2.Re6#
- 2.Re8#
- 1...Rxb6
- 2.Sb5#
- 1...Rxg8
- 2.Qg3#
- 2.Qxg5#
- 2.Qh2#
- 1...Bc4
- 2.Sg4#
- 1...Bg4
- 2.Sd3#
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 2.Re6#
- 1...Bh5
- 2.Sd3#
- 2.Re6#
- 2.Qg3#
- 2.Qxg5#
- 2.Qh2#
- 1...Rxh4+!
- threat
- 1.Sxe2?
- Keys
- 1.Re8!
- threat
- 2.Bg8#
- 1...Rxh4+
- 2.Bh3#
- 1...Kxf6
- 2.Bb3#
- 1...Rxb6
- 2.Sb5#
- 1...Rxe8
- 2.Qxg5#
- 1...Rf8
- 2.Qxg5#
- 1...Rg8
- 2.Bxg8#
- 2.Qxg5#
- 1...Bc4
- 2.Sg4#
- 1...Bg4
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 1...Bh5
- 2.Qxg5#
- threat
- 1.Re8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 8
- Sets
- R(b);::B(A)+S(E),XR(b)
- R(g);N_PINQ(H),XR(L)::QAR2(H),XP(e)
- B(c);N_GUARD::S(C)
- B(c);N_GUARD,P_PINP(D)::S(C)
- S(a);S_CUTB(c)::S(C)
- Tries
- Try
- S(E);P_PINR(b),XB(c)
- Threat
- DUALS(2)
- Vars
- S(a);XS(E)::S(C)
- P(e);XQ(H)::B(A),XR(b)
- S(a);::S(C)
- P(e);::B(A),XR(b)
- Refutation
- R(g);CHECK,XQ(H)
- Try
- B(A);XR(b)
- Threat
- DUALS(7)
- Vars
- S(a);S_CUTB(c)::S(C)
- Refutation
- R(g);CHECK,XQ(H)
- Try
- B(J);N_SPINQ(H)
- Threat
- DUALS(3)
- Vars
- P(e);XQ(H)::R1(I)
- Refutation
- S(a);XB(J)
- Try
- B(J);
- Threat
- R1(I)
- Vars
- R(b);XR(I)::B(A)+S(E)
- B(c);N_GUARD,XB(J)::S(C)
- Refutation
- R(g);CHECK,XQ(H)
- Try
- B(J);
- Threat
- R1(I)
- Vars
- R(b);XR(I)::B(A)+S(E)
- Refutation
- R(g);CHECK,XQ(H)
- Try
- B(J);
- Threat
- R1(I)
- Vars
- R(b);XR(I)::B(A)+S(E)
- B(c);N_GUARD::S(C)
- Refutation
- R(g);CHECK,XQ(H)
- Try
- B(J);
- Threat
- R1(I)
- Vars
- R(b);XR(I)::B(A)+S(E)
- B(c);N_GUARD::S(C)
- Refutation
- R(g);CHECK,XQ(H)
- Try
- B(J);
- Threat
- R1(I)
- Vars
- R(b);XR(I)::B(A)+S(E)
- B(c);N_GUARD::S(C)
- Refutation
- R(g);CHECK,XQ(H)
- Try
- B(J);
- Threat
- R1(I)
- Vars
- R(b);XR(I)::B(A)+S(E)
- B(c);N_GUARD::S(C)
- Refutation
- R(g);CHECK,XQ(H)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- R(b);XR(I)::B(A)+S(E)
- B(c);N_GUARD::S(C)
- Refutation
- R(g);CHECK,XQ(H)
- Try
- Actual
- R(L);
- Threat
- R(L)+B(J)
- Vars
- R(g);CHECK,N_GUARD,XQ(H)::R(L)+B(J)
- K(d);P_SPINP(e),S_FLIGHT,XP(K)::R(I)+B(J)
- R(b);XR(I)::B(A)+S(E)
- R(g);N_PINQ(H),XR(L)::QAR2(H),XP(e)
- R(g);N_PINQ(H)::QAR2(H),XP(e)
- B(c);N_GUARD::S(C)
- B(c);N_GUARD::S(C),XB(c)
- B(c);N_PINQ(H)::QAR2(H),XP(e)
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).