MESON Chess Problem Database
Problem Display
PID: 182557 (8/1p6/1K5p/2P1R1pP/2k1PpP1/2p1bQP1/P1N1P3/8 w - - 0 1)
Preiswerk, Walther Edouard
Zeitbilder, 1945
#2
11 + 7
| 16108 | Walther Preiswerks Shachprobleme (M. Henneberger) | 1949 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Qd3#
- 1...Bg1
- 2.Qd3#
- 1...Bd2
- 2.Qd3#
- 1...Bf2
- 2.Qd3#
- 1...Bd4
- 2.Qd3#
- 1...Bxc5+
- 2.Rxc5#
- 1...fxg3
- 2.Qf7#
- 1...Bc1
- Tries
- 1.Sa3+?
- 1...Kd4
- 2.Rd5#
- 1...Kb4!
- 1...Kd4
- 1.Rd5?
- 1...Bxc5+
- 2.Rxc5#
- 1...Bc1
- 2.Rd4#
- 2.Qd3#
- 1...Bg1
- 2.Qd3#
- 1...Bd2
- 2.Rd4#
- 2.Qd3#
- 1...Bf2
- 2.Qd3#
- 1...Bd4
- 2.Rxd4#
- 2.Qd3#
- 1...fxg3!
- 1...Bxc5+
- 1.Rf5?
- 1...Bxc5+
- 2.Rxc5#
- 1...Bc1
- 2.Qd3#
- 1...Bg1
- 2.Qd3#
- 1...Bd2
- 2.Qd3#
- 1...Bf2
- 2.Qd3#
- 1...Bd4
- 2.Qd3#
- 1...fxg3!
- 1...Bxc5+
- 1.Rxg5?
- 1...Bxc5+
- 2.Rxc5#
- 1...fxg3
- 2.Qf7#
- 1...Bc1
- 2.Qd3#
- 1...Bg1
- 2.Qd3#
- 1...Bd2
- 2.Qd3#
- 1...Bf2
- 2.Qd3#
- 1...Bd4
- 2.Qd3#
- 1...hxg5!
- 1...Bxc5+
- 1.Re7?
- 1...fxg3
- 2.Qf7#
- 1...Bc1
- 2.Qd3#
- 1...Bg1
- 2.Qd3#
- 1...Bd2
- 2.Qd3#
- 1...Bf2
- 2.Qd3#
- 1...Bd4
- 2.Qd3#
- 1...Bxc5+!
- 1...fxg3
- 1.Re8?
- 1...fxg3
- 2.Qf7#
- 1...Bc1
- 2.Qd3#
- 1...Bg1
- 2.Qd3#
- 1...Bd2
- 2.Qd3#
- 1...Bf2
- 2.Qd3#
- 1...Bd4
- 2.Qd3#
- 1...Bxc5+!
- 1...fxg3
- 1.gxf4?
- 1...Bxc5+
- 2.Rxc5#
- 1...Bxf4
- 2.Qd3#
- 1...Bc1
- 2.Qd3#
- 1...Bg1
- 2.Qd3#
- 1...Bd2
- 2.Qd3#
- 1...Bf2
- 2.Qd3#
- 1...Bd4
- 2.Qd3#
- 1...gxf4!
- 1...Bxc5+
- 1.Sa3+?
- Keys
- 1.Qf1!
- 1...Bxc5+
- 2.Rxc5#
- 1...fxg3
- 2.Qf7#
- 1...Bc1
- 2.e3#
- 1...Bg1
- 2.e3#
- 1...Bd2
- 2.e3#
- 1...Bf2
- 2.e3#
- 1...Bd4
- 2.e3#
- 1...f3
- 2.exf3#
- 1...Bxc5+
- 1.Qf1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);N_PINP(H),OGATE::QAB1(D)
- B(b);OGATE::QAB1(D)
- B(b);CHECK,OGATE,XP(H)::R1(I),XB(b)
- P(d);OGATE,XP(E)::QAB(D)
- Tries
- Try
- S(B);CHECK
- Vars
- K(c);N_PINP(H),P-FLIGHT::R1(I)
- Refutation
- K(c);P-FLIGHT
- Try
- R(I);
- Vars
- B(b);CHECK,OGATE,XP(H)::R1(I),XB(b)
- B(b);OGATE::QAB1(D)
- Refutation
- P(d);XP(E)
- Try
- R(I);
- Vars
- B(b);CHECK,OGATE,XP(H)::R1(I),XB(b)
- B(b);N_PINP(H),OGATE::QAB1(D)
- B(b);OGATE::QAB1(D)
- Refutation
- P(d);XP(E)
- Try
- R(I);XP(e)
- Vars
- B(b);CHECK,OGATE,XP(H)::R1(I),XB(b)
- P(d);OGATE,XP(E)::QAB(D)
- B(b);N_PINP(H),OGATE::QAB1(D)
- B(b);OGATE::QAB1(D)
- Refutation
- P(f);XR(I)
- Try
- R(I);
- Vars
- P(d);OGATE,XP(E)::QAB(D)
- B(b);N_PINP(H),OGATE::QAB1(D)
- B(b);OGATE::QAB1(D)
- Refutation
- B(b);CHECK,XP(H)
- Try
- R(I);
- Vars
- P(d);OGATE,XP(E)::QAB(D)
- B(b);N_PINP(H),OGATE::QAB1(D)
- B(b);OGATE::QAB1(D)
- Refutation
- B(b);CHECK,XP(H)
- Try
- P(E);XP(d)
- Vars
- B(b);CHECK,OGATE,XP(H)::R1(I),XB(b)
- B(b);N_PINP(H),OGATE,XP(E)::QAB1(D)
- B(b);N_PINP(H),OGATE::QAB1(D)
- B(b);OGATE::QAB1(D)
- Refutation
- P(e);XP(E)
- Try
- Actual
- Q(D);
- Vars
- B(b);CHECK,OGATE,XP(H)::R1(I),XB(b)
- P(d);OGATE,XP(E)::QAB(D)
- B(b);N_PINP(H),OGATE::QAB(D)+P(C)
- B(b);OGATE::QAB(D)+P(C)
- P(d);OGATE::QAB(D)+P(C),XP(d)
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).