MESON Chess Problem Database
Problem Display
PID: 198907 (8/4N3/3N4/4p3/1P1kb1Q1/2np1R1K/1nPB1b2/8 w - - 0 1)
Eder, Istvan
Bekes, 1921
#2
8 + 7
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Be3#
- 1...Bg1
- 2.Qxg1#
- 1...Be3
- 2.Bxe3#
- 1...Bg3
- 2.Be3#
- 1...Bh4
- 2.Be3#
- 1...Sbd1
- 2.Rxd3#
- 1...Sba4
- 2.Rxd3#
- 1...Sc4
- 2.Sdf5#
- 2.Rxd3#
- 1...Sb1
- 2.Qxe4#
- 1...Scd1
- 2.Qxe4#
- 1...Sa2
- 2.Qxe4#
- 1...Se2
- 2.Qxe4#
- 1...Sca4
- 2.Qxe4#
- 1...Sb5
- 2.Qxe4#
- 1...Sd5
- 2.Sef5#
- 2.Sc6#
- 2.Qxe4#
- 1...dxc2
- 2.Bxc3#
- 1...Be1
- Tries
- 1.Kh2?
- 1...Bg1+
- 2.Qxg1#
- 1...dxc2
- 2.Bxc3#
- 1...Be1
- 2.Be3#
- 1...Be3
- 2.Bxe3#
- 1...Bh4
- 2.Be3#
- 1...Sbd1
- 2.Rxd3#
- 1...Sba4
- 2.Rxd3#
- 1...Sc4
- 2.Sdf5#
- 2.Rxd3#
- 1...Sb1
- 2.Qxe4#
- 1...Scd1
- 2.Qxe4#
- 1...Sa2
- 2.Qxe4#
- 1...Se2
- 2.Qxe4#
- 1...Sca4
- 2.Qxe4#
- 1...Sb5
- 2.Qxe4#
- 1...Sd5
- 2.Sef5#
- 2.Sc6#
- 2.Qxe4#
- 1...Bg3+!
- 1...Bg1+
- 1.Qe6?
- 1...Bf5+
- 2.Sexf5#
- 1...Bxf3
- 2.Sef5#
- 1...dxc2
- 2.Bxc3#
- 1...Be1
- 2.Be3#
- 1...Be3
- 2.Bxe3#
- 1...Bg3
- 2.Be3#
- 1...Bh4
- 2.Be3#
- 1...Bd5
- 2.Sef5#
- 1...Bc6
- 2.Sef5#
- 2.Sxc6#
- 1...Bg6
- 2.Sc6#
- 1...Bb7
- 2.Sef5#
- 1...Bh7
- 2.Sc6#
- 1...Ba8
- 2.Sef5#
- 1...Sbd1
- 2.Qc4#
- 1...Sba4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb1
- 2.Sb5#
- 1...Scd1
- 2.Sb5#
- 1...Sa2
- 2.Sb5#
- 1...Se2
- 2.Sb5#
- 1...Sca4
- 2.Sb5#
- 1...Sb5
- 2.Sxb5#
- 1...Sd5
- 2.Sc6#
- 1...Bg1!
- 1...Bf5+
- 1.Qh4?
- threat
- 2.Qxf2#
- 1...Bxh4
- 2.Be3#
- 1...Be1
- 2.Be3#
- 1...Be3
- 2.Bxe3#
- 1...Bg3
- 2.Be3#
- 1...Sbd1
- 2.Rxd3#
- 1...Sc4
- 2.Sdf5#
- 2.Rxd3#
- 1...Scd1
- 2.Qxe4#
- 1...Sd5
- 2.Sef5#
- 2.Sc6#
- 2.Qxe4#
- 1...Bg1!
- threat
- 1.Kh2?
- Keys
- 1.Qg8!
- 1...Bf5+
- 2.Sexf5#
- 1...Bxf3
- 2.Sef5#
- 1...dxc2
- 2.Bxc3#
- 1...Bg1
- 2.Qxg1#
- 1...Be1
- 2.Be3#
- 1...Be3
- 2.Bxe3#
- 1...Bg3
- 2.Be3#
- 1...Bh4
- 2.Be3#
- 1...Bd5
- 2.Sef5#
- 1...Bc6
- 2.Sef5#
- 2.Sxc6#
- 1...Bg6
- 2.Sc6#
- 1...Bb7
- 2.Sef5#
- 1...Bh7
- 2.Sc6#
- 1...Ba8
- 2.Sef5#
- 1...Sbd1
- 2.Qc4#
- 1...Sba4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sb1
- 2.Sb5#
- 1...Scd1
- 2.Sb5#
- 1...Sa2
- 2.Sb5#
- 1...Se2
- 2.Sb5#
- 1...Sca4
- 2.Sb5#
- 1...Sb5
- 2.Sxb5#
- 1...Sd5
- 2.Sc6#
- 1...Bf5+
- 1.Qg8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- B(b);N_GUARD::B(B)
- B(b);OGATEB::QAB(F),XB(b)
- B(b);N_GUARD::B(B),XB(b)
- S(a);N_GUARD::R1(C),XP(d)
- S(c);N_GUARD::QAR1(F),XB(f)
- P(d);XP(A)::B(B),XS(c)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- B(b);CHECK,OGATEB::QAB(F),XB(b)
- P(d);XP(A)::B(B),XS(c)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD::B(B),XB(b)
- S(a);N_GUARD::R1(C),XP(d)
- S(c);N_GUARD::QAR1(F),XB(f)
- Refutation
- B(b);CHECK
- Try
- Q(F);N_PINB(f)
- Vars
- B(f);CHECK,N_GUARD::S(H),XB(f)
- B(f);N_GUARD,XR(C)::S(H)
- P(d);XP(A)::B(B),XS(c)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD::B(B),XB(b)
- B(f);N_GUARD::S(H)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- S(c);S_CUTB(f)::S(H)
- Refutation
- B(b);
- Try
- Q(F);
- Threat
- QAB(F),XB(b)
- Vars
- B(b);N_GUARD,N_SPINB(f),XQ(F)::B(B)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD::B(B),XB(b)
- S(a);N_GUARD::R1(C),XP(d)
- S(c);N_GUARD::QAR1(F),XB(f)
- Refutation
- B(b);
- Try
- Actual
- Q(F);N_PINB(f)
- Vars
- B(f);CHECK,N_GUARD::S(H),XB(f)
- B(f);N_GUARD,XR(C)::S(H)
- P(d);XP(A)::B(B),XS(c)
- B(b);OGATEB::QAB(F),XB(b)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD::B(B),XB(b)
- B(f);N_GUARD::S(H)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- S(c);S_CUTB(f)::S(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).