MESON Chess Problem Database
Problem Display
PID: 250069 (8/3p3K/1P1Pp2R/1RqbkB2/2PN1p2/4N3/4Q3/B7 w - - 0 1)
Gross, Izidor
8th Prize, Sahovski Glasnik, 1927
#2
11 + 6
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxd6
- 2.Sd1#
- 2.Sf1#
- 2.Sec2#
- 2.Sg2#
- 2.Sg4#
- 2.Sxd5#
- 2.Sdc2#
- 2.Sb3#
- 2.Sf3#
- 2.Sc6#
- 2.Sxe6#
- 1...Qxc4
- 2.Sxc4#
- 1...Qxb5
- 2.Sxb5#
- 1...fxe3
- 2.Qh2#
- 1...f3
- 2.Qh2#
- 1...exf5
- 2.Sg4#
- 2.Sxd5#
- 1...Qxd6
- Tries
- 1.Sxe6+?
- 1...Qd4
- 2.Rxd5#
- 1...Kxd6!
- 1...Qd4
- 1.Bb1?
- 1...Be4+
- 2.Sdf5#
- 1...Kxd6
- 2.Sef5#
- 1...Qxd4
- 2.Sf5#
- 1...Qxb6
- 2.Sef5#
- 1...Qxd6
- 2.Sd1#
- 2.Sf1#
- 2.Sec2#
- 2.Sg2#
- 2.Sg4#
- 2.Sxd5#
- 2.Sef5#
- 2.Sb3#
- 2.Sf3#
- 2.Sdf5#
- 2.Sc6#
- 2.Sxe6#
- 2.Qh5#
- 1...Qxc4
- 2.Sxc4#
- 1...Qxb5
- 2.Sxb5#
- 1...Bxc4
- 2.Sdf5#
- 1...fxe3
- 2.Qh2#
- 1...f3
- 2.Qh2#
- 1...Qb4
- 2.Sef5#
- 1...Qc6
- 2.Sef5#
- 2.Sdf5#
- 1...Qc7
- 2.Sef5#
- 2.Sdf5#
- 1...Qc8
- 2.Sef5#
- 2.Sdf5#
- 1...Bh1
- 2.Sdf5#
- 1...Bg2
- 2.Sdf5#
- 1...Bf3
- 2.Sdf5#
- 1...Bc6
- 2.Sdf5#
- 1...Bb7
- 2.Sdf5#
- 1...Ba8
- 2.Sdf5#
- 1...Qa3!
- 1...Be4+
- 1.Bc2?
- 1...Be4+
- 2.Sdf5#
- 1...Kxd6
- 2.Sef5#
- 1...Qxd4
- 2.Sf5#
- 1...Qxb6
- 2.Sef5#
- 1...Qxd6
- 2.Sd1#
- 2.Sf1#
- 2.Sg2#
- 2.Sg4#
- 2.Sxd5#
- 2.Sef5#
- 2.Sb3#
- 2.Sf3#
- 2.Sdf5#
- 2.Sc6#
- 2.Sxe6#
- 2.Qh5#
- 1...Qxc4
- 2.Sxc4#
- 1...Qxb5
- 2.Sxb5#
- 1...Bxc4
- 2.Sdf5#
- 1...fxe3
- 2.Qh2#
- 1...f3
- 2.Qh2#
- 1...Qb4
- 2.Sef5#
- 1...Qc6
- 2.Sef5#
- 2.Sdf5#
- 1...Qc7
- 2.Sef5#
- 2.Sdf5#
- 1...Qc8
- 2.Sef5#
- 2.Sdf5#
- 1...Bh1
- 2.Sdf5#
- 1...Bg2
- 2.Sdf5#
- 1...Bf3
- 2.Sdf5#
- 1...Bc6
- 2.Sdf5#
- 1...Bb7
- 2.Sdf5#
- 1...Ba8
- 2.Sdf5#
- 1...Qa3!
- 1...Be4+
- 1.Rxc5?
- threat
- 2.Sb5#
- 1...fxe3
- 2.Qh2#
- 1...exf5
- 2.Sd1#
- 2.Sf1#
- 2.Sec2#
- 2.Sg2#
- 2.Sg4#
- 2.Sxd5#
- 2.Sexf5#
- 1...f3
- 2.Qh2#
- 1...Kxd6!
- threat
- 1.Sxe6+?
- Keys
- 1.Bd3!
- 1...Be4+
- 2.Sdf5#
- 1...Kxd6
- 2.Sef5#
- 1...Qxd4
- 2.Sf5#
- 1...Qxb6
- 2.Sef5#
- 1...Qxd6
- 2.Sd1#
- 2.Sf1#
- 2.Sec2#
- 2.Sg2#
- 2.Sg4#
- 2.Sxd5#
- 2.Sef5#
- 2.Sdc2#
- 2.Sb3#
- 2.Sf3#
- 2.Sdf5#
- 2.Sc6#
- 2.Sxe6#
- 2.Qh5#
- 1...Qxc4
- 2.Sxc4#
- 2.Sef5#
- 1...Qxb5
- 2.Sxb5#
- 1...Bxc4
- 2.Sdf5#
- 1...fxe3
- 2.Qh2#
- 1...f3
- 2.Qh2#
- 1...Qa3
- 2.Sef5#
- 1...Qb4
- 2.Sef5#
- 1...Qc6
- 2.Sef5#
- 2.Sdf5#
- 1...Qc7
- 2.Sef5#
- 2.Sdf5#
- 1...Qc8
- 2.Sef5#
- 2.Sdf5#
- 1...Bh1
- 2.Sdf5#
- 1...Bg2
- 2.Sdf5#
- 1...Bf3
- 2.Sdf5#
- 1...Bc6
- 2.Sdf5#
- 1...Bb7
- 2.Sdf5#
- 1...Ba8
- 2.Sdf5#
- 1...Be4+
- 1.Bd3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 1
- Sets
- Q(b);P_SPINB(c),XP(D)::QAR(B)+S(C),DCHECK,XQ(b)
- Q(b);XR(F)::B(A)+S(E),XQ(b)
- P(a);OGATEB,P_SPINP(a),XS(C)::QAB(B)
- P(a);OGATEB::QAB(B)
- Tries
- Try
- S(E);CHECK,XP(e)
- Vars
- Q(b);OGATE,P_SPINB(c),P_SPINQ(b)::R1(F),XB(c)
- Refutation
- K(d);S_FLIGHT,XP(I)
- Try
- B(G);
- Vars
- B(c);CHECK,P_SPINQ(b)::B(A)+S(E)
- K(d);P_SPINP(e),S_CUTB(c),S_FLIGHT,XP(I)::S(C)
- Q(b);P_SPINB(c),P_SPINQ(b),XS(E)::QAR(B)+S(C)
- Q(b);P_SPINB(c),XP(H)::QAR(B)+S(C)
- Q(b);P_SPINB(c),XP(D)::QAR(B)+S(C),DCHECK,XQ(b)
- Q(b);XR(F)::B(A)+S(E),XQ(b)
- B(c);P_SPINQ(b),XP(D)::B(A)+S(E)
- P(a);OGATEB,P_SPINP(a),XS(C)::QAB(B)
- P(a);OGATEB::QAB(B)
- Q(b);P_SPINB(c)::QAR(B)+S(C)
- B(c);P_SPINQ(b)::B(A)+S(E)
- Refutation
- Q(b);P_SPINB(c)
- Try
- B(G);
- Vars
- B(c);CHECK,P_SPINQ(b)::B(A)+S(E)
- K(d);P_SPINP(e),S_CUTB(c),S_FLIGHT,XP(I)::S(C)
- Q(b);P_SPINB(c),P_SPINQ(b),XS(E)::QAR(B)+S(C)
- Q(b);P_SPINB(c),XP(H)::QAR(B)+S(C)
- Q(b);P_SPINB(c),XP(D)::QAR(B)+S(C),DCHECK,XQ(b)
- Q(b);XR(F)::B(A)+S(E),XQ(b)
- B(c);P_SPINQ(b),XP(D)::B(A)+S(E)
- P(a);OGATEB,P_SPINP(a),XS(C)::QAB(B)
- P(a);OGATEB::QAB(B)
- Q(b);P_SPINB(c)::QAR(B)+S(C)
- B(c);P_SPINQ(b)::B(A)+S(E)
- Refutation
- Q(b);P_SPINB(c)
- Try
- R(F);P_PINB(c),XQ(b)
- Threat
- B(A)+S(E)
- Vars
- P(a);OGATEB,P_SPINP(a),XS(C)::QAB(B)
- P(a);OGATEB::QAB(B)
- Refutation
- K(d);N_SPINB(c),P_SPINP(e),S_FLIGHT,XP(I)
- Try
- Actual
- B(G);
- Vars
- B(c);CHECK,P_SPINQ(b)::B(A)+S(E)
- K(d);P_SPINP(e),S_CUTB(c),S_FLIGHT,XP(I)::S(C)
- Q(b);P_SPINB(c),P_SPINQ(b),XS(E)::QAR(B)+S(C)
- Q(b);P_SPINB(c),XP(H)::QAR(B)+S(C)
- Q(b);XR(F)::B(A)+S(E),XQ(b)
- B(c);P_SPINQ(b),XP(D)::B(A)+S(E)
- P(a);OGATEB,P_SPINP(a),XS(C)::QAB(B)
- P(a);OGATEB::QAB(B)
- Q(b);P_SPINB(c)::QAR(B)+S(C)
- B(c);P_SPINQ(b)::B(A)+S(E)
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).