MESON Chess Problem Database
Problem Display
PID: 57423 (5Q2/2p5/2P4p/1p2p2P/1B2P1p1/3Pknp1/6P1/2N2R1K w - - 0 1)
Zappas, Byron
Chess Life, 1956
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Qc5#
- 1...Se1
- 2.Qc5#
- 1...Sg1
- 2.Qc5#
- 1...Sd2
- 2.Bc5#
- 2.Qc5#
- 1...Sh2
- 2.Qc5#
- 1...Sd4
- 2.Qxh6#
- 1...Sh4
- 2.Qc5#
- 1...Sg5
- 2.Qc5#
- 1...Kd4
- Tries
- 1.Bd2+?
- 1...Kd4
- 2.Qb4#
- 1...Sxd2
- 2.Qc5#
- 1...Kxd2!
- 1...Kd4
- 1.Bc3?
- 1...Se1
- 2.Rxe1#
- 2.Qc5#
- 2.Qxh6#
- 1...Sg1
- 2.Qc5#
- 2.Qxh6#
- 1...Sd2
- 2.Re1#
- 2.Qc5#
- 2.Qxh6#
- 1...Sh2
- 2.Re1#
- 2.Qc5#
- 2.Qxh6#
- 1...Sd4
- 2.Qxh6#
- 1...Sh4
- 2.Re1#
- 2.Qc5#
- 2.Qxh6#
- 1...Sg5
- 2.Re1#
- 2.Qc5#
- 1...b4!
- 1...Se1
- 1.Bc5+?
- 1...Sd4
- 2.Qxh6#
- 1...Kd2!
- 1...Sd4
- 1.Rxf3+?
- 1...Kd4
- 2.Se2#
- 2.Sb3#
- 2.Qc5#
- 2.Qd8#
- 1...gxf3!
- 1...Kd4
- 1.Qc5+?
- 1...Kf4
- 2.Bd2#
- 1...Sd4!
- 1...Kf4
- 1.Qd6?
- 1...Kf4
- 2.Bd2#
- 2.Qxh6#
- 1...Se1
- 2.Qc5#
- 1...Sg1
- 2.Qc5#
- 1...Sd2
- 2.Bc5#
- 2.Qc5#
- 1...Sh2
- 2.Qc5#
- 1...Sd4
- 2.Qxh6#
- 1...Sh4
- 2.Qc5#
- 1...Sg5
- 2.Qc5#
- 1...cxd6!
- 1...Kf4
- 1.Qe7?
- 1...Kd4
- 2.Qc5#
- 1...Kf4
- 2.Bd2#
- 1...Se1
- 2.Qc5#
- 1...Sg1
- 2.Qc5#
- 1...Sd2
- 2.Bc5#
- 2.Qc5#
- 1...Sh2
- 2.Qc5#
- 1...Sh4
- 2.Qc5#
- 1...Sg5
- 2.Qc5#
- 1...Sd4!
- 1...Kd4
- 1.Qxf3+?
- 1...Kd4
- 2.Se2#
- 2.Sb3#
- 1...gxf3!
- 1...Kd4
- 1.Qa8?
- 1...Kd4
- 2.Qa7#
- 1...Kf4
- 2.Bd2#
- 1...Se1
- 2.Qa7#
- 1...Sg1
- 2.Qa7#
- 1...Sd2
- 2.Bc5#
- 2.Qa7#
- 1...Sh2
- 2.Qa7#
- 1...Sh4
- 2.Qa7#
- 1...Sg5
- 2.Qa7#
- 1...Sd4!
- 1...Kd4
- 1.Qb8?
- 1...Kd4
- 2.Qa7#
- 1...Kf4
- 2.Bd2#
- 1...Se1
- 2.Qa7#
- 1...Sg1
- 2.Qa7#
- 1...Sd2
- 2.Bc5#
- 2.Qa7#
- 1...Sh2
- 2.Qa7#
- 1...Sh4
- 2.Qa7#
- 1...Sg5
- 2.Qa7#
- 1...Sd4!
- 1...Kd4
- 1.Bd2+?
- Keys
- 1.Rd1!
- 1...Kf2
- 2.Bc5#
- 1...Kd4
- 2.Qc5#
- 1...Se1
- 2.Bc5#
- 1...Sg1
- 2.Bc5#
- 1...Sd2
- 2.Bc5#
- 1...Sh2
- 2.Bc5#
- 1...Sd4
- 2.Bd2#
- 1...Sh4
- 2.Bc5#
- 1...Sg5
- 2.Bc5#
- 1...Kf2
- 1.Rd1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT::QAB1(J)
- S(b);N_GUARD::QAB(J)
- S(b);N_GUARD,SBLOCK::QAB(J),XP(g)
- Tries
- Try
- B(F);CHECK
- Vars
- K(a);S_FLIGHT::QAR2(J)
- S(b);SBLOCK,XB(F)::QAB(J)
- Refutation
- K(a);S_FLIGHT,XB(F)
- Try
- B(F);
- Vars
- S(b);N_GUARD::QAB(J),XP(g)
- Refutation
- P(e);
- Try
- B(F);CHECK
- Vars
- S(b);P_SPINS(b)::QAB(J),XP(g)
- Refutation
- K(a);S_FLIGHT
- Try
- R(B);CHECK,XS(b)
- Refutation
- P(d);XR(B)
- Try
- Q(J);CHECK
- Vars
- K(a);P_SPINS(b),S_FLIGHT::B(F)
- Refutation
- S(b);P_SPINS(b)
- Try
- Q(J);
- Vars
- S(b);N_GUARD::QAB(J)
- S(b);N_GUARD,SBLOCK::QAB(J),XP(g)
- Refutation
- P(h);XQ(J)
- Try
- Q(J);
- Vars
- K(a);S_FLIGHT::QAB1(J)
- K(a);P_SPINS(b),S_FLIGHT::B(F)
- S(b);N_GUARD::QAB(J)
- Refutation
- S(b);
- Try
- Q(J);CHECK,XS(b)
- Refutation
- P(d);XQ(J)
- Try
- Q(J);
- Vars
- K(a);S_FLIGHT::QAB(J)
- K(a);P_SPINS(b),S_FLIGHT::B(F)
- S(b);N_GUARD::QAB(J)
- Refutation
- S(b);
- Try
- Q(J);
- Vars
- K(a);S_FLIGHT::QAB(J)
- K(a);P_SPINS(b),S_FLIGHT::B(F)
- S(b);N_GUARD::QAB(J)
- Refutation
- S(b);
- Try
- Actual
- R(B);
- Vars
- K(a);P_SPINS(b),S_FLIGHT::B(F)
- K(a);S_FLIGHT::QAB1(J)
- S(b);N_GUARD::B(F)
- S(b);N_GUARD,SBLOCK::B(F)
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).