MESON Chess Problem Database
Problem Display
PID: 261553 (8/p4Q1K/2NPP1p1/4R1p1/1N2b1pP/2nBk3/q7/bn2BR2 w - - 0 1)
Frei-Schuler, Gottlieb
Neue Zurcher Zeitung, 1956
#2
11 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qb3
- 2.Qf2#
- 2.Qxa7#
- 1...Qc4
- 2.Qf2#
- 1...Qd5
- 2.Qf2#
- 1...Qxe6
- 2.Qf2#
- 2.Qxa7#
- 1...Qb2
- 2.Qxa7#
- 1...Qc2
- 2.Qxa7#
- 1...Qd2
- 2.Qxa7#
- 1...Qe2
- 2.Qxa7#
- 1...Qf2
- 2.Qxf2#
- 1...Qg2
- 2.Qxa7#
- 1...Qh2
- 2.Qxa7#
- 1...Qa3
- 2.Qf2#
- 1...Qa4
- 2.Qf2#
- 1...Qa5
- 2.Qf2#
- 1...Qa6
- 2.Qf2#
- 1...Bb2
- 2.Qf2#
- 1...Sd2
- 2.Bf2#
- 2.Qf2#
- 1...Sa3
- 2.Qxa7#
- 1...Sd1
- 2.Rxe4#
- 1...Se2
- 2.Rxe4#
- 2.Qf2#
- 1...Sa4
- 2.Rxe4#
- 1...Sb5
- 2.Rxe4#
- 1...Sd5
- 2.Rxe4#
- 1...g3
- 2.Rf3#
- 2.Qf3#
- 1...gxh4
- 2.Qf4#
- 1...a5
- 2.Qa7#
- 1...a6
- 2.Qa7#
- 1...Qb3
- Tries
- 1.Kg8?
- 1...gxh4
- 2.Qf4#
- 1...Qb3
- 2.Qf2#
- 2.Qxa7#
- 1...Qc4
- 2.Qf2#
- 1...Qd5
- 2.Qf2#
- 1...Qb2
- 2.Qxa7#
- 1...Qc2
- 2.Qxa7#
- 1...Qd2
- 2.Qxa7#
- 1...Qe2
- 2.Qxa7#
- 1...Qf2
- 2.Qxf2#
- 1...Qg2
- 2.Qxa7#
- 1...Qh2
- 2.Qxa7#
- 1...Qa3
- 2.Qf2#
- 1...Qa4
- 2.Qf2#
- 1...Qa5
- 2.Qf2#
- 1...Qa6
- 2.Qf2#
- 1...Bb2
- 2.Qf2#
- 1...Sd2
- 2.Bf2#
- 2.Qf2#
- 1...Sa3
- 2.Qxa7#
- 1...Sd1
- 2.Rxe4#
- 1...Se2
- 2.Rxe4#
- 2.Qf2#
- 1...Sa4
- 2.Rxe4#
- 1...Sb5
- 2.Rxe4#
- 1...Sd5
- 2.Rxe4#
- 1...g3
- 2.Rf3#
- 2.Qf3#
- 1...a5
- 2.Qa7#
- 1...a6
- 2.Qa7#
- 1...Qxe6!
- 1...gxh4
- 1.Sa5?
- threat
- 2.Qxa7#
- 1...Qxa5
- 2.Qf2#
- 1...Sd1
- 2.Rxe4#
- 1...Qc4
- 2.Qf2#
- 1...Qd5
- 2.Qf2#
- 1...Qf2
- 2.Qxf2#
- 1...Se2
- 2.Rxe4#
- 2.Qf2#
- 1...Sa4
- 2.Rxe4#
- 1...Sb5
- 2.Rxe4#
- 1...Sd5
- 2.Rxe4#
- 1...a6
- 2.Qa7#
- 1...Kd4!
- threat
- 1.Bd2+?
- 1...Qxd2
- 2.Qxa7#
- 1...Sxd2
- 2.Qf2#
- 1...Kxd2!
- 1...Qxd2
- 1.Bf2+?
- 1...Qxf2
- 2.Qxf2#
- 1...Kd2!
- 1...Qxf2
- 1.Bc2?
- threat
- 2.Qf2#
- 1...Ke2
- 2.Qf2#
- 1...Sd1
- 2.Rxe4#
- 1...g3
- 2.Qf3#
- 1...Qxc2!
- threat
- 1.Bc4?
- 1...Qxc4
- 2.Qf2#
- 1...gxh4
- 2.Qf4#
- 1...Sd1
- 2.Sd5#
- 1...Qb3
- 2.Qf2#
- 2.Qxa7#
- 1...Qb2
- 2.Qxa7#
- 1...Qc2
- 2.Sxc2#
- 2.Qxa7#
- 1...Qe2
- 2.Qxa7#
- 1...Qf2
- 2.Qxf2#
- 1...Qg2
- 2.Qxa7#
- 1...Qh2
- 2.Qxa7#
- 1...Qa3
- 2.Sc2#
- 2.Qf2#
- 1...Qa4
- 2.Qf2#
- 1...Qa5
- 2.Sc2#
- 2.Qf2#
- 1...Qa6
- 2.Sc2#
- 2.Qf2#
- 1...Bb2
- 2.Sc2#
- 2.Qf2#
- 1...Sd2
- 2.Bf2#
- 2.Qf2#
- 1...Sa3
- 2.Qxa7#
- 1...Se2
- 2.Sd5#
- 2.Qf2#
- 1...Sa4
- 2.Sd5#
- 1...Sb5
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...g3
- 2.Rf3#
- 2.Qf3#
- 1...a5
- 2.Qa7#
- 1...a6
- 2.Qa7#
- 1...Qd2!
- 1...Qxc4
- 1.Qf6?
- threat
- 2.Qxg5#
- 1...gxh4
- 2.Qg5#
- 2.Qf4#
- 1...Qf2
- 2.Qxf2#
- 1...Se2
- 2.Rxe4#
- 2.Qf2#
- 1...Sd5
- 2.Rxe4#
- 1...Qh2!
- threat
- 1.Qe7?
- threat
- 2.Qxg5#
- 1...gxh4
- 2.Qg5#
- 1...Qh2
- 2.Qxa7#
- 1...Se2
- 2.Rxe4#
- 1...Sd5
- 2.Rxe4#
- 1...Qf2!
- threat
- 1.hxg5?
- threat
- 2.Qf4#
- 1...Qf2
- 2.Qxf2#
- 1...Se2
- 2.Rxe4#
- 2.Qf2#
- 1...Sd5
- 2.Rxe4#
- 1...Qh2+!
- threat
- 1.h5?
- 1...Qxe6
- 2.Qf2#
- 2.Qxa7#
- 1...Sd1
- 2.Rxe4#
- 1...Qb3
- 2.Qf2#
- 2.Qxa7#
- 1...Qc4
- 2.Qf2#
- 1...Qd5
- 2.Qf2#
- 1...Qb2
- 2.Qxa7#
- 1...Qc2
- 2.Qxa7#
- 1...Qd2
- 2.Qxa7#
- 1...Qe2
- 2.Qxa7#
- 1...Qf2
- 2.Qxf2#
- 1...Qg2
- 2.Qxa7#
- 1...Qh2
- 2.Qxa7#
- 1...Qa3
- 2.Qf2#
- 1...Qa4
- 2.Qf2#
- 1...Qa5
- 2.Qf2#
- 1...Qa6
- 2.Qf2#
- 1...Bb2
- 2.Qf2#
- 1...Sd2
- 2.Bf2#
- 2.Qf2#
- 1...Sa3
- 2.Qxa7#
- 1...Se2
- 2.Rxe4#
- 2.Qf2#
- 1...Sa4
- 2.Rxe4#
- 1...Sb5
- 2.Rxe4#
- 1...Sd5
- 2.Rxe4#
- 1...g3
- 2.Rf3#
- 2.Qf3#
- 1...a5
- 2.Qa7#
- 1...a6
- 2.Qa7#
- 1...gxh5+!
- 1...Qxe6
- 1.Kg8?
- Keys
- 1.Kh6!
- 1...Qxe6
- 2.Qf2#
- 2.Qxa7#
- 1...gxh4
- 2.Qf4#
- 1...Qb3
- 2.Qf2#
- 2.Qxa7#
- 1...Qc4
- 2.Qf2#
- 1...Qd5
- 2.Qf2#
- 1...Qb2
- 2.Qxa7#
- 1...Qc2
- 2.Qxa7#
- 1...Qd2
- 2.Qxa7#
- 1...Qe2
- 2.Qxa7#
- 1...Qf2
- 2.Qxf2#
- 1...Qg2
- 2.Qxa7#
- 1...Qh2
- 2.Qxa7#
- 1...Qa3
- 2.Qf2#
- 1...Qa4
- 2.Qf2#
- 1...Qa5
- 2.Qf2#
- 1...Qa6
- 2.Qf2#
- 1...Bb2
- 2.Qf2#
- 1...Sd2
- 2.Bf2#
- 2.Qf2#
- 1...Sa3
- 2.Qxa7#
- 1...Sd1
- 2.Rxe4#
- 1...Se2
- 2.Rxe4#
- 2.Qf2#
- 1...Sa4
- 2.Rxe4#
- 1...Sb5
- 2.Rxe4#
- 1...Sd5
- 2.Rxe4#
- 1...g3
- 2.Rf3#
- 2.Qf3#
- 1...a5
- 2.Qa7#
- 1...a6
- 2.Qa7#
- 1...Qxe6
- 1.Kh6!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(c);N_GUARD::QAB1(J)
- Q(c);N_GUARD::QAB(J),XP(j)
- Q(c);N_GUARD::QAB1(J),XQ(c)
- Q(c);N_GUARD,P_PINP(E)::QAB(J),XP(j)
- B(a);S_CUTQ(c)::QAB1(J)
- S(b);S_CUTQ(c)::QAB(J),XP(j)
- S(d);N_GUARD::R1(F),XB(f)
- P(h);N_GUARD,XP(E)::QAB1(J)
- P(j);S_CUTQ(c)::QAB(J)
- Tries
- Try
- K(K);S_FLIGHT
- Vars
- P(h);N_GUARD,XP(E)::QAB1(J)
- Q(c);N_GUARD::QAB1(J)
- Q(c);N_GUARD::QAB(J),XP(j)
- Q(c);N_GUARD::QAB1(J),XQ(c)
- B(a);S_CUTQ(c)::QAB1(J)
- S(b);S_CUTQ(c)::QAB(J),XP(j)
- S(d);N_GUARD::R1(F),XB(f)
- P(j);S_CUTQ(c)::QAB(J)
- Refutation
- Q(c);P_PINQ(J),XP(I)
- Try
- S(G);
- Threat
- QAB(J),XP(j)
- Vars
- Q(c);N_GUARD,XS(G)::QAB1(J)
- S(d);N_GUARD::R1(F),XB(f)
- Q(c);N_GUARD::QAB1(J)
- Q(c);N_GUARD::QAB1(J),XQ(c)
- P(j);::QAB(J)
- Refutation
- K(e);N_SPINB(f),S_FLIGHT
- Try
- B(A);CHECK
- Vars
- Q(c);SBLOCK,XB(A)::QAB(J),XP(j)
- S(b);XB(A)::QAB1(J)
- Refutation
- K(e);N_SPINB(f),S_FLIGHT,XB(A)
- Try
- B(A);CHECK
- Vars
- Q(c);OGATE,XB(A)::QAB1(J),XQ(c)
- Refutation
- K(e);N_SPINB(f),S_FLIGHT
- Try
- B(C);
- Threat
- QAB1(J)
- Vars
- K(e);P-FLIGHT::QAR1(J)
- S(d);N_GUARD::R1(F),XB(f)
- P(g);N_GUARD::QAR1(J)
- Refutation
- Q(c);XB(C)
- Try
- B(C);
- Vars
- Q(c);N_GUARD,XB(C)::QAB1(J)
- P(h);N_GUARD,XP(E)::QAB1(J)
- S(d);N_GUARD::S(D)
- Q(c);N_GUARD::QAB(J),XP(j)
- Q(c);N_GUARD::QAB1(J),XQ(c)
- Q(c);N_GUARD,P_PINP(E)::QAB(J),XP(j)
- Q(c);N_GUARD::QAB1(J)
- S(b);S_CUTQ(c)::QAB(J),XP(j)
- S(d);N_GUARD::S(D),XS(d)
- P(j);S_CUTQ(c)::QAB(J)
- Refutation
- Q(c);
- Try
- Q(J);
- Threat
- QAB(J),XP(h)
- Vars
- Q(c);N_GUARD::QAB1(J),XQ(c)
- S(d);N_GUARD::R1(F),XB(f)
- Refutation
- Q(c);P_PINP(E)
- Try
- Q(J);
- Threat
- QAB(J),XP(h)
- Vars
- P(h);XP(E)::QAB(J)
- Q(c);N_GUARD,P_PINP(E)::QAB(J),XP(j)
- S(d);N_GUARD::R1(F),XB(f)
- Refutation
- Q(c);
- Try
- P(E);XP(h)
- Threat
- QAB1(J)
- Vars
- Q(c);N_GUARD::QAB1(J),XQ(c)
- S(d);N_GUARD::R1(F),XB(f)
- Refutation
- Q(c);CHECK
- Try
- P(E);
- Vars
- S(d);N_GUARD::R1(F),XB(f)
- Q(c);N_GUARD::QAB1(J)
- Q(c);N_GUARD::QAB(J),XP(j)
- Q(c);N_GUARD::QAB1(J),XQ(c)
- Q(c);N_GUARD,P_PINP(E)::QAB(J),XP(j)
- B(a);S_CUTQ(c)::QAB1(J)
- S(b);S_CUTQ(c)::QAB(J),XP(j)
- P(j);S_CUTQ(c)::QAB(J)
- Refutation
- P(i);CHECK,XP(E)
- Try
- Actual
- K(K);P-FLIGHT
- Vars
- P(h);N_GUARD,XP(E)::QAB1(J)
- Q(c);N_GUARD::QAB1(J)
- Q(c);N_GUARD::QAB(J),XP(j)
- Q(c);N_GUARD::QAB1(J),XQ(c)
- Q(c);N_GUARD,P_PINP(E)::QAB(J),XP(j)
- B(a);S_CUTQ(c)::QAB1(J)
- S(b);S_CUTQ(c)::QAB(J),XP(j)
- S(d);N_GUARD::R1(F),XB(f)
- P(j);S_CUTQ(c)::QAB(J)
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).