MESON Chess Problem Database
Problem Display
PID: 193348 (8/7p/7P/1KPNk1n1/2PRbR2/7Q/8/8 w - - 0 1)
Frankenstein, Josef
Deutsche Schachzeitung, 1914
#2
8 + 4
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Kxd4
- 2.Qc3#
- 1...Bh1
- 2.Qf5#
- 1...Bg2
- 2.Qf5#
- 1...Bf3
- 2.Qf5#
- 1...Bxd5
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Sf3
- 2.Rdxe4#
- 2.Rfxe4#
- 1...Sxh3
- 2.Rdxe4#
- 1...Se6
- 2.Rdxe4#
- 2.Rfxe4#
- 1...Sf7
- 2.Rdxe4#
- 2.Rfxe4#
- 1...Kxd4
- Tries
- 1.Se7?
- 1...Bc6+
- 2.Sxc6#
- 1...Kxd4
- 2.Sc6#
- 1...Sxh3
- 2.Rdxe4#
- 1...Bb1
- 2.Sc6#
- 1...Bh1
- 2.Qf5#
- 1...Bc2
- 2.Sc6#
- 1...Bg2
- 2.Qf5#
- 1...Bd3
- 2.Sc6#
- 1...Bf3
- 2.Qf5#
- 1...Bd5
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Sc6#
- 1...Bb7
- 2.Qf5#
- 1...Ba8
- 2.Qf5#
- 1...Sf3
- 2.Rdxe4#
- 1...Se6
- 2.Rdxe4#
- 1...Sf7
- 2.Rdxe4#
- 1...Kxf4!
- 1...Bc6+
- 1.Qd7?
- 1...Bxd5
- 2.Qf5#
- 2.Qxd5#
- 2.Qd6#
- 1...Bb1
- 2.Qd6#
- 1...Bh1
- 2.Qf5#
- 2.Qd6#
- 1...Bc2
- 2.Qd6#
- 1...Bg2
- 2.Qf5#
- 2.Qd6#
- 1...Bd3
- 2.Qd6#
- 1...Bf3
- 2.Qf5#
- 2.Qd6#
- 1...Bf5
- 2.Qxf5#
- 2.Qd6#
- 1...Bg6
- 2.Qd6#
- 1...Sf3
- 2.Rdxe4#
- 2.Rfxe4#
- 1...Sh3
- 2.Rdxe4#
- 2.Rfxe4#
- 1...Se6
- 2.Rdxe4#
- 1...Sf7
- 2.Rdxe4#
- 2.Rfxe4#
- 1...Kxd4!
- 1...Bxd5
- 1.Qc3?
- threat
- 2.Rdxe4#
- 1...Bxd5
- 2.Rde4#
- 1...Bb1
- 2.Rde4#
- 1...Bh1
- 2.Rde4#
- 1...Bc2
- 2.Rde4#
- 1...Bg2
- 2.Rde4#
- 1...Bd3
- 2.Rde4#
- 1...Bf3
- 2.Rde4#
- 1...Bf5
- 2.Rde4#
- 1...Bg6
- 2.Rde4#
- 1...Ke6!
- threat
- 1.Qe3?
- 1...Sf3
- 2.Rdxe4#
- 2.Qxe4#
- 1...Sh3
- 2.Rdxe4#
- 2.Qxe4#
- 1...Se6
- 2.Rdxe4#
- 2.Qxe4#
- 1...Sf7
- 2.Rdxe4#
- 2.Qxe4#
- 1...Ke6!
- 1...Sf3
- 1.Se7?
- Keys
- 1.Sb4!
- 1...Bc6+
- 2.Sxc6#
- 1...Kxd4
- 2.Sc6#
- 1...Kxf4
- 2.Sd3#
- 1...Sxh3
- 2.Rdxe4#
- 1...Bb1
- 2.Sc6#
- 1...Bh1
- 2.Sd3#
- 2.Qf5#
- 1...Bc2
- 2.Sc6#
- 1...Bg2
- 2.Sd3#
- 2.Qf5#
- 1...Bd3
- 2.Sxd3#
- 2.Sc6#
- 1...Bf3
- 2.Sd3#
- 2.Qf5#
- 1...Bd5
- 2.Sd3#
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Sc6#
- 1...Bb7
- 2.Sd3#
- 2.Qf5#
- 1...Ba8
- 2.Sd3#
- 2.Qf5#
- 1...Sf3
- 2.Rdxe4#
- 1...Se6
- 2.Rdxe4#
- 1...Sf7
- 2.Rdxe4#
- 1...Bc6+
- 1.Sb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 8
- REMOVED MATES = 4
- Sets
- K(b);OGATEB,P_SPINB(a),S_FLIGHT,XR(C)::QAB1(A)
- B(a);N_GUARD::QAR1(A)
- B(a);N_GUARD,XS(G)::QAR1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD,XQ(A)::R1(C),XB(a)
- Tries
- Try
- S(G);
- Vars
- B(a);CHECK,N_GUARD::S(G),XB(a)
- K(b);P_SPINB(a),S_FLIGHT,XR(C)::S(G)
- S(c);N_GUARD,XQ(A)::R1(C),XB(a)
- B(a);N_GUARD::S(G)
- B(a);N_GUARD::QAR1(A)
- B(a);N_GUARD,P_PINP(B)::S(G)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::R1(C),XB(a)
- Refutation
- K(b);P_SPINB(a),S_FLIGHT,XR(D)
- Try
- Q(A);
- Vars
- B(a);::QAB1(A)
- B(a);P_PINP(B)::QAB1(A)
- S(c);N_GUARD::R1(C),XB(a)
- Refutation
- K(b);P_SPINB(a),S_FLIGHT,XR(C)
- Try
- Q(A);
- Threat
- QAB(A)+R(C),DCHECK,XB(a)
- Vars
- B(a);XS(G)::QAB(A)+R(C),DCHECK
- B(a);::QAB(A)+R(C),DCHECK
- B(a);P_PINP(B)::QAB(A)+R(C),DCHECK
- Refutation
- K(b);P-FLIGHT
- Try
- Q(A);P_PINB(a)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- S(G);
- Vars
- B(a);CHECK,N_GUARD::S(G),XB(a)
- K(b);P_SPINB(a),S_FLIGHT,XR(C)::S(G)
- K(b);P_SPINB(a),S_FLIGHT,XR(D)::S(G)
- S(c);N_GUARD,XQ(A)::R1(C),XB(a)
- B(a);N_GUARD::S(G)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::R1(C),XB(a)
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).