MESON Chess Problem Database
Problem Display
PID: 227633 (8/8/8/2p3p1/2P3K1/7B/3Qpk2/6bR w - - 0 1)
Schiffert, Gyorgy
Zaszlonk, 1926
#2
5 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Rf1#
- 1...Bh2
- Tries
- 1.Kxg5?
- 1...Kf3
- 2.Qf4#
- 1...Kg3
- 2.Qf4#
- 1...Bh2!
- 1...Kf3
- 1.Qe3+?
- 1...Ke1
- 2.Rxg1#
- 1...Kxe3!
- 1...Ke1
- 1.Qf4+?
- 1...Ke1
- 2.Rxg1#
- 1...gxf4!
- 1...Ke1
- 1.Qd3?
- threat
- 2.Qg3#
- 1...e1Q
- 2.Qf3#
- 1...e1S
- 2.Qd2#
- 1...e1B
- 2.Qf3#
- 1...e1R
- 2.Qf3#
- 1...Bh2
- 2.Qf3#
- 1...Ke1!
- threat
- 1.Qd4+?
- 1...Ke1
- 2.Rxg1#
- 1...cxd4!
- 1...Ke1
- 1.Kxg5?
- Keys
- 1.Qc3!
- threat
- 2.Qg3#
- 1...e1Q
- 2.Qf3#
- 1...e1S
- 2.Qd2#
- 1...e1B
- 2.Qf3#
- 1...e1R
- 2.Qf3#
- 1...Bh2
- 2.Qf3#
- threat
- 1.Qc3!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(a);OGATE::R1(A)
- Tries
- Try
- K(E);P-FLIGHT,XP(e)
- Vars
- K(c);N_SPINP(b),P-FLIGHT::QAR1(B)
- K(c);N_SPINP(b),S_FLIGHT::QAB1(B)
- Refutation
- B(a);
- Try
- Q(B);CHECK,N_PINP(b)
- Vars
- K(c);P_SPINB(a),P_SPINP(b),S_FLIGHT::R(A),XB(a)
- Refutation
- K(c);S_FLIGHT,XQ(B)
- Try
- Q(B);CHECK,N_PINP(b)
- Vars
- K(c);P_SPINB(a),S_FLIGHT::R(A),XB(a)
- Refutation
- P(e);XQ(B)
- Try
- Q(B);N_PINP(b)
- Threat
- QAB1(B)
- Vars
- P(b);SBLOCK::QAR1(B)
- P(b);OGATEB::QAR2(B)
- B(a);::QAR1(B)
- Refutation
- K(c);P_SPINB(a),S_FLIGHT
- Try
- Q(B);CHECK,N_PINP(b)
- Vars
- K(c);P_SPINB(a),S_FLIGHT::R(A),XB(a)
- Refutation
- P(d);XQ(B)
- Try
- Actual
- Q(B);N_PINP(b)
- Threat
- QAB1(B)
- Vars
- P(b);SBLOCK::QAR1(B)
- P(b);OGATEB::QAR2(B)
- B(a);::QAR1(B)
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).