MESON Chess Problem Database
Problem Display
PID: 161402 (4N3/b3Q3/8/k1q1R3/8/1P6/5B2/1K3B2 w - - 0 1)
Albrecht, Hermann
Morning Post, 1936
(First published on Sat May 2 1936)
#2
7 + 3
| 15601 | Albrecht-Leiss-Degener Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Kb6
- 2.Qc7#
- 1...Qb5
- 2.Qa3#
- 1...Qd5
- 2.Qa3#
- 1...Qxe5
- 2.Qa3#
- 1...Bb6
- 2.Be1#
- 1...Bb8
- 2.Qxc5#
- 1...Kb6
- Tries
- 1.Kb2?
- 1...Kb4
- 2.Be1#
- 1...Kb6
- 2.Qc7#
- 1...Qb5
- 2.Qa3#
- 1...Qd5
- 2.Qa3#
- 1...Bb6
- 2.Be1#
- 1...Bb8
- 2.Qxc5#
- 1...Qxe5+!
- 1...Kb4
- 1.Be2?
- 1...Kb6
- 2.Qc7#
- 1...Qxe5
- 2.Qa3#
- 1...Qb5
- 2.Qa3#
- 1...Qd5
- 2.Qa3#
- 1...Bb6
- 2.Be1#
- 1...Bb8
- 2.Qxc5#
- 1...Kb4!
- 1...Kb6
- 1.Bd3?
- 1...Kb6
- 2.Qc7#
- 1...Qxe5
- 2.Qa3#
- 1...Qb5
- 2.Qa3#
- 1...Qd5
- 2.Qa3#
- 1...Bb6
- 2.Be1#
- 1...Bb8
- 2.Qxc5#
- 1...Kb4!
- 1...Kb6
- 1.Bc4?
- 1...Kb6
- 2.Qc7#
- 1...Qxe5
- 2.Qa3#
- 1...Qb5
- 2.Qa3#
- 1...Qd5
- 2.Qa3#
- 1...Bb6
- 2.Be1#
- 1...Bb8
- 2.Qxc5#
- 1...Kb4!
- 1...Kb6
- 1.Be3?
- 1...Kb6
- 2.Qc7#
- 1...Qxe5
- 2.Qa3#
- 1...Qb5
- 2.Qa3#
- 1...Qd5
- 2.Qa3#
- 1...Bb6
- 2.Bd2#
- 1...Bb8
- 2.Qxc5#
- 1...Kb4!
- 1...Kb6
- 1.Bd4?
- 1...Kb6
- 2.Qc7#
- 1...Qxe5
- 2.Qa3#
- 1...Qb5
- 2.Qa3#
- 1...Qd5
- 2.Qa3#
- 1...Bb6
- 2.Bc3#
- 1...Bb8
- 2.Qxc5#
- 1...Kb4!
- 1...Kb6
- 1.Bxc5?
- threat
- 2.Bxa7#
- 2.Qxa7#
- 1...Bxc5
- 2.Qxc5#
- 1...Bb6
- 2.Bb4#
- 1...Bb8!
- threat
- 1.Rxc5+?
- 1...Kb6
- 2.Qc7#
- 1...Bxc5
- 2.Qxc5#
- 1...Kb4!
- 1...Kb6
- 1.Rd5?
- 1...Kb6
- 2.Qc7#
- 1...Qxd5
- 2.Qa3#
- 1...Qb5
- 2.Qa3#
- 1...Bb6
- 2.Be1#
- 2.Qe1#
- 1...Bb8
- 2.Qxc5#
- 1...Kb4!
- 1...Kb6
- 1.Qd6?
- threat
- 2.Be1#
- 1...Qxe5
- 2.Qa3#
- 1...Kb4!
- threat
- 1.Qd8+?
- 1...Bb6
- 2.Be1#
- 2.Qd2#
- 1...Kb4!
- 1...Bb6
- 1.Qc7+?
- 1...Bb6
- 2.Be1#
- 1...Kb4!
- 1...Bb6
- 1.Kb2?
- Keys
- 1.Ka2!
- 1...Kb4
- 2.Be1#
- 1...Kb6
- 2.Qc7#
- 1...Qxe5
- 2.Qa3#
- 1...Qb5
- 2.Qa3#
- 1...Qd5
- 2.Qa3#
- 1...Bb6
- 2.Be1#
- 1...Bb8
- 2.Qxc5#
- 1...Kb4
- 1.Ka2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT::QAB1(F)
- Q(b);OGATE,P_PINP(D)::QAR2(F)
- Q(b);OGATE::QAR2(F)
- Q(b);N_SPINQ(b),OGATE,XR(E)::QAR2(F)
- B(c);SBLOCK::B(C)
- B(c);N_GUARD::QAR2(F),XQ(b)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(a);S_FLIGHT::B(C)
- K(a);S_FLIGHT::QAB1(F)
- Q(b);OGATE,P_PINP(D)::QAR2(F)
- Q(b);OGATE::QAR2(F)
- B(c);SBLOCK::B(C)
- B(c);N_GUARD::QAR2(F),XQ(b)
- Refutation
- Q(b);CHECK,N_SPINQ(b),XR(E)
- Try
- B(B);
- Vars
- K(a);S_FLIGHT::QAB1(F)
- Q(b);N_SPINQ(b),OGATE,XR(E)::QAR2(F)
- Q(b);OGATE,P_PINP(D)::QAR2(F)
- Q(b);OGATE::QAR2(F)
- B(c);SBLOCK::B(C)
- B(c);N_GUARD::QAR2(F),XQ(b)
- Refutation
- K(a);S_FLIGHT
- Try
- B(B);
- Vars
- K(a);S_FLIGHT::QAB1(F)
- Q(b);N_SPINQ(b),OGATE,XR(E)::QAR2(F)
- Q(b);OGATE,P_PINP(D)::QAR2(F)
- Q(b);OGATE::QAR2(F)
- B(c);SBLOCK::B(C)
- B(c);N_GUARD::QAR2(F),XQ(b)
- Refutation
- K(a);S_FLIGHT
- Try
- B(B);
- Vars
- K(a);S_FLIGHT::QAB1(F)
- Q(b);N_SPINQ(b),OGATE,XR(E)::QAR2(F)
- Q(b);OGATE,P_PINP(D)::QAR2(F)
- Q(b);OGATE::QAR2(F)
- B(c);SBLOCK::B(C)
- B(c);N_GUARD::QAR2(F),XQ(b)
- Refutation
- K(a);S_FLIGHT
- Try
- B(C);
- Vars
- K(a);S_FLIGHT::QAB1(F)
- Q(b);N_SPINQ(b),OGATE,XR(E)::QAR2(F)
- Q(b);OGATE,P_PINP(D)::QAR2(F)
- Q(b);OGATE::QAR2(F)
- B(c);SBLOCK::B(C)
- B(c);N_GUARD::QAR2(F),XQ(b)
- Refutation
- K(a);S_FLIGHT
- Try
- B(C);
- Vars
- K(a);S_FLIGHT::QAB1(F)
- Q(b);N_SPINQ(b),OGATE,XR(E)::QAR2(F)
- Q(b);OGATE,P_PINP(D)::QAR2(F)
- Q(b);OGATE::QAR2(F)
- B(c);SBLOCK::B(C)
- B(c);N_GUARD::QAR2(F),XQ(b)
- Refutation
- K(a);S_FLIGHT
- Try
- B(C);XQ(b)
- Threat
- DUALS(2)
- Vars
- B(c);OGATE,P_SPINB(c),XB(C)::QAR2(F),XB(c)
- B(c);SBLOCK::R(E)+B(C),DCHECK
- Refutation
- B(c);
- Try
- R(E);CHECK,XQ(b)
- Vars
- K(a);S_FLIGHT::QAB1(F)
- B(c);OGATE,XR(E)::QAR2(F),XB(c)
- Refutation
- K(a);S_FLIGHT
- Try
- R(E);
- Vars
- K(a);S_FLIGHT::QAB1(F)
- Q(b);N_SPINQ(b),OGATE,XR(E)::QAR2(F)
- Q(b);OGATE,P_PINP(D)::QAR2(F)
- B(c);N_GUARD::QAR2(F),XQ(b)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(F);
- Threat
- B(C)
- Vars
- Q(b);N_SPINQ(b),OGATE,XR(E)::QAR2(F)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(F);CHECK
- Refutation
- K(a);N_SPINQ(b),S_FLIGHT
- Try
- Q(F);CHECK
- Vars
- B(c);P_SPINB(c)::B(C)
- Refutation
- K(a);N_SPINQ(b),S_FLIGHT
- Try
- Actual
- K(A);S_FLIGHT
- Vars
- K(a);S_FLIGHT::B(C)
- K(a);S_FLIGHT::QAB1(F)
- Q(b);N_SPINQ(b),OGATE,XR(E)::QAR2(F)
- Q(b);OGATE::QAR2(F)
- Q(b);OGATE,P_PINP(D)::QAR2(F)
- B(c);SBLOCK::B(C)
- B(c);N_GUARD::QAR2(F),XQ(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).