MESON Chess Problem Database
Problem Display
PID: 179003 (1K3N2/8/1ppR1n2/1rk1B1n1/1bB4Q/2p3r1/8/2Nb2q1 w - - 0 1)
Kraemer, Adolf Herrmann Rudolf Ferdinand
4th HM., Magasinet, 1953
#2
7 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qh2
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 1...Qe1
- 2.Qd4#
- 1...Qf1
- 2.Qd4#
- 1...Qh1
- 2.Qd4#
- 1...Qg2
- 2.Qd4#
- 1...Rg2
- 2.Sd3#
- 1...Rd3
- 2.Sxd3#
- 1...Re3
- 2.Qd4#
- 1...Be2
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Bf3
- 2.Sb3#
- 2.Sd3#
- 1...Bh5
- 2.Sb3#
- 1...Sf3
- 2.Sd3#
- 2.Se6#
- 1...Sh3
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sgh7
- 2.Se6#
- 1...Sd5
- 2.Sd7#
- 1...Sh5
- 2.Sd7#
- 1...Sd7+
- 2.Sxd7#
- 1...Sfh7
- 2.Sd7#
- 1...Se8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Qh2
- Tries
- 1.Bf1?
- threat
- 2.Qc4#
- 1...Sd7+
- 2.Sxd7#
- 1...Qxf1
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 1...Rd3
- 2.Sxd3#
- 1...Be2
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Bg4
- 2.Sb3#
- 1...Sge4
- 2.Se6#
- 1...Sfe4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Rg4!
- threat
- 1.Ba2?
- threat
- 2.Qc4#
- 1...Sd7+
- 2.Sxd7#
- 1...Qd4
- 2.Qxd4#
- 1...Qf1
- 2.Qd4#
- 1...Rg4
- 2.Sd3#
- 1...Be2
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Sge4
- 2.Se6#
- 1...Sfe4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Bg4!
- threat
- 1.Be2?
- threat
- 2.Qc4#
- 1...Sd7+
- 2.Sxd7#
- 1...Bxe2
- 2.Sb3#
- 1...Qd4
- 2.Qxd4#
- 1...Rd3
- 2.Sxd3#
- 1...Bb3
- 2.Sxb3#
- 1...Sge4
- 2.Se6#
- 1...Sfe4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Rg4!
- threat
- 1.Bd3?
- threat
- 2.Qc4#
- 1...Sd7+
- 2.Sxd7#
- 1...Rxd3
- 2.Sxd3#
- 1...Qd4
- 2.Qxd4#
- 1...Bb3
- 2.Sxb3#
- 1...Bg4
- 2.Sb3#
- 1...Sge4
- 2.Se6#
- 1...Sfe4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Rg4!
- threat
- 1.Bd5?
- threat
- 2.Qc4#
- 1...Sd7+
- 2.Sxd7#
- 1...Sxd5
- 2.Sd7#
- 1...Rg4
- 2.Sd3#
- 1...Qd4
- 2.Qxd4#
- 1...Qf1
- 2.Qd4#
- 1...Be2
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Bg4
- 2.Sb3#
- 1...Sge4
- 2.Se6#
- 1...Sfe4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...cxd5!
- threat
- 1.Be6?
- threat
- 2.Qc4#
- 1...Sd7+
- 2.Sxd7#
- 1...Sxe6
- 2.Sxe6#
- 1...Rg4
- 2.Sd3#
- 1...Qd4
- 2.Qxd4#
- 1...Qf1
- 2.Qd4#
- 1...Be2
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Bg4
- 2.Sb3#
- 1...Sfe4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd5
- 2.Sd7#
- 1...Sge4!
- threat
- 1.Bf7?
- threat
- 2.Qc4#
- 1...Sd7+
- 2.Sxd7#
- 1...Sxf7
- 2.Se6#
- 1...Rg4
- 2.Sd3#
- 1...Qd4
- 2.Qxd4#
- 1...Qf1
- 2.Qd4#
- 1...Be2
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Bg4
- 2.Sb3#
- 1...Se6
- 2.Sxe6#
- 1...Sfe4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd5
- 2.Sd7#
- 1...Sge4!
- threat
- 1.Bg8?
- threat
- 2.Qc4#
- 1...Sd7+
- 2.Sxd7#
- 1...Sxg8
- 2.Sd7#
- 1...Rg4
- 2.Sd3#
- 1...Qd4
- 2.Qxd4#
- 1...Qf1
- 2.Qd4#
- 1...Be2
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Bg4
- 2.Sb3#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sfe4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd5
- 2.Sd7#
- 1...Sge4!
- threat
- 1.Rd5+?
- 1...Sxd5
- 2.Sd7#
- 1...cxd5!
- 1...Sxd5
- 1.Bf1?
- Keys
- 1.Rd4!
- threat
- 2.Bd6#
- 1...Sd7+
- 2.Sxd7#
- 1...Qxd4
- 2.Qxd4#
- 1...Rg4
- 2.Sd3#
- 1...Bg4
- 2.Sb3#
- 1...Sge4
- 2.Se6#
- 1...Sf7
- 2.Se6#
- 1...Sfe4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd5
- 2.Sd7#
- 1...Se8
- 2.Sd7#
- threat
- 1.Rd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 17
- Sets
- Q(b);N_GUARD::QAB1(C)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- R(d);N_GUARD::S(A)
- R(d);N_GUARD::S(A),XR(d)
- R(d);S_CUTQ(b)::QAB1(C)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- S(h);N_GUARD::S(G)
- S(h);N_GUARD::S(G),XS(h)
- S(k);N_GUARD::S(G)
- S(k);CHECK,N_GUARD::S(G),XS(k)
- Tries
- Try
- B(B);
- Threat
- QAR1(C)
- Vars
- S(k);CHECK,N_GUARD::S(G),XS(k)
- Q(b);N_GUARD,XB(B)::QAB1(C)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- R(d);N_GUARD::S(A),XR(d)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- S(h);N_GUARD::S(G)
- S(k);N_GUARD::S(G)
- Refutation
- R(d);
- Try
- B(B);
- Threat
- QAR1(C)
- Vars
- S(k);CHECK,N_GUARD::S(G),XS(k)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- Q(b);N_GUARD::QAB1(C)
- R(d);N_GUARD::S(A)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- S(h);N_GUARD::S(G)
- S(k);N_GUARD::S(G)
- Refutation
- B(a);
- Try
- B(B);
- Threat
- QAR1(C)
- Vars
- S(k);CHECK,N_GUARD::S(G),XS(k)
- B(a);N_GUARD,XB(B)::S(A)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- R(d);N_GUARD::S(A),XR(d)
- B(a);N_GUARD::S(A),XB(a)
- S(h);N_GUARD::S(G)
- S(k);N_GUARD::S(G)
- Refutation
- R(d);
- Try
- B(B);
- Threat
- QAR1(C)
- Vars
- S(k);CHECK,N_GUARD::S(G),XS(k)
- R(d);XB(B)::S(A),XR(d)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- S(h);N_GUARD::S(G)
- S(k);N_GUARD::S(G)
- Refutation
- R(d);
- Try
- B(B);
- Threat
- QAR1(C)
- Vars
- S(k);CHECK,N_GUARD::S(G),XS(k)
- S(k);N_GUARD,XB(B)::S(G)
- R(d);N_GUARD::S(A)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- Q(b);N_GUARD::QAB1(C)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- S(h);N_GUARD::S(G)
- S(k);N_GUARD::S(G)
- Refutation
- P(j);XB(B)
- Try
- B(B);
- Threat
- QAR1(C)
- Vars
- S(k);CHECK,N_GUARD::S(G),XS(k)
- S(h);XB(B)::S(G),XS(h)
- R(d);N_GUARD::S(A)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- Q(b);N_GUARD::QAB1(C)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- S(k);N_GUARD::S(G)
- Refutation
- S(h);
- Try
- B(B);
- Threat
- QAR1(C)
- Vars
- S(k);CHECK,N_GUARD::S(G),XS(k)
- S(h);N_GUARD,XB(B)::S(G)
- R(d);N_GUARD::S(A)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- Q(b);N_GUARD::QAB1(C)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- S(h);N_GUARD::S(G),XS(h)
- S(k);N_GUARD::S(G)
- Refutation
- S(h);
- Try
- B(B);
- Threat
- QAR1(C)
- Vars
- S(k);CHECK,N_GUARD::S(G),XS(k)
- S(k);N_GUARD,XB(B)::S(G)
- R(d);N_GUARD::S(A)
- Q(b);N_GUARD::QAB1(C),XQ(b)
- Q(b);N_GUARD::QAB1(C)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- S(k);N_GUARD::S(G)
- Refutation
- S(h);
- Try
- R(E);CHECK
- Vars
- S(k);XR(E)::S(G)
- Refutation
- P(j);XR(E)
- Try
- Actual
- R(E);
- Threat
- B(D)
- Vars
- S(k);CHECK,N_GUARD::S(G),XS(k)
- Q(b);OGATE,XR(E)::QAB1(C),XQ(b)
- R(d);N_GUARD::S(A)
- B(a);N_GUARD::S(A)
- S(h);N_GUARD::S(G)
- S(k);N_GUARD::S(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).