MESON Chess Problem Database
Problem Display
PID: 18491 (8/8/8/7B/1N6/1K6/QB1k2N1/1r6 w - - 0 1)
Myllyniemi, Matti Arvo
Dagbladet, 1956
#2
6 + 2
| 3976 | FIDE Album (1956-1958) | 1961 |
| 3310 | 2345 Chess Problems | 1997 |
| 5454 | Near Snap | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Bc3#
- 1...Rd1
- 2.Ba3#
- 1...Re1
- 2.Ba3#
- 1...Rf1
- 2.Ba3#
- 1...Rg1
- 2.Ba3#
- 1...Rh1
- 2.Ba3#
- 1...Rxb2+
- 2.Qxb2#
- 1...Rc1
- Tries
- 1.Ka3?
- threat
- 2.Qd5#
- 1...Rxb2
- 2.Qxb2#
- 1...Ra1!
- threat
- 1.Ka4?
- threat
- 2.Qd5#
- 1...Rxb2
- 2.Qxb2#
- 1...Ra1!
- threat
- 1.Kc4?
- 1...Rc1+
- 2.Bc3#
- 1...Rxb2
- 2.Qxb2#
- 1...Rd1
- 2.Ba3#
- 1...Re1
- 2.Ba3#
- 1...Rf1
- 2.Ba3#
- 1...Rg1
- 2.Ba3#
- 1...Rh1
- 2.Ba3#
- 1...Ra1!
- 1...Rc1+
- 1.Bf3?
- 1...Rxb2+
- 2.Qxb2#
- 1...Rc1
- 2.Bc3#
- 1...Rd1
- 2.Ba3#
- 1...Re1
- 2.Ba3#
- 1...Rf1
- 2.Ba3#
- 1...Rg1
- 2.Ba3#
- 1...Rh1
- 2.Ba3#
- 1...Ra1!
- 1...Rxb2+
- 1.Bg4?
- 1...Rxb2+
- 2.Qxb2#
- 1...Rc1
- 2.Bc3#
- 1...Rd1
- 2.Ba3#
- 1...Re1
- 2.Ba3#
- 1...Rf1
- 2.Ba3#
- 1...Rg1
- 2.Ba3#
- 1...Rh1
- 2.Ba3#
- 1...Ra1!
- 1...Rxb2+
- 1.Qa1?
- 1...Rxb2+
- 2.Qxb2#
- 1...Rc1
- 2.Bxc1#
- 2.Qxc1#
- 1...Rd1
- 2.Bc3#
- 2.Qxd1#
- 1...Re1
- 2.Bc3#
- 2.Qxe1#
- 1...Rf1
- 2.Bc3#
- 1...Rg1
- 2.Bc3#
- 1...Rh1
- 2.Bc3#
- 1...Rxa1!
- 1...Rxb2+
- 1.Qa5?
- threat
- 2.Qd8#
- 2.Qd5#
- 2.Qg5#
- 1...Re1
- 2.Qd8#
- 2.Qd5#
- 1...Rf1
- 2.Qd8#
- 2.Qd5#
- 1...Rxb2+!
- threat
- 1.Qa6?
- threat
- 2.Qe2#
- 2.Qd3#
- 2.Qd6#
- 2.Qh6#
- 1...Re1
- 2.Qd3#
- 2.Qd6#
- 1...Rf1
- 2.Qe2#
- 2.Qd3#
- 2.Qd6#
- 1...Rxb2+!
- threat
- 1.Qa7?
- threat
- 2.Qf2#
- 2.Qe3#
- 2.Qd4#
- 2.Qd7#
- 1...Re1
- 2.Qd4#
- 2.Qd7#
- 1...Rf1
- 2.Qe3#
- 2.Qd4#
- 2.Qd7#
- 1...Rxb2+!
- threat
- 1.Ka3?
- Keys
- 1.Qa3!
- 1...Rxb2+
- 2.Qxb2#
- 1...Ra1
- 2.Bc3#
- 1...Rc1
- 2.Bxc1#
- 1...Rd1
- 2.Bc3#
- 1...Re1
- 2.Bc3#
- 1...Rf1
- 2.Bc3#
- 1...Rg1
- 2.Bc3#
- 1...Rh1
- 2.Bc3#
- 1...Rxb2+
- 1.Qa3!
Anticipated by 110678(1933), 17754(1949)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 6
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(a);N_PINB(B),SBLOCK::QAR(A)+B(B),DCHECK
- R(a);N_PINB(B)::QAR(A)+B(B)
- R(a);CHECK,OGATE,P_SPINR(a),XB(B)::QAR2(A),XR(a)
- Tries
- Try
- K(D);N_SPINB(B),P-FLIGHT
- Threat
- QAR(A)
- Vars
- R(a);OGATE,P_SPINR(a),XB(B)::QAR2(A),XR(a)
- Refutation
- R(a);P_PINQ(A)
- Try
- K(D);N_SPINB(B),S_FLIGHT
- Threat
- QAR(A)
- Vars
- R(a);OGATE,P_SPINR(a),XB(B)::QAR2(A),XR(a)
- Refutation
- R(a);P_PINQ(A)
- Try
- K(D);N_SPINB(B),S_FLIGHT
- Vars
- R(a);CHECK,SBLOCK::QAR(A)+B(B),DCHECK
- R(a);OGATE,P_SPINR(a),XB(B)::QAR2(A),XR(a)
- R(a);N_GUARD::QAR(A)+B(B)
- Refutation
- R(a);
- Try
- B(F);
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XB(B)::QAR2(A),XR(a)
- R(a);N_PINB(B),SBLOCK::QAR(A)+B(B),DCHECK
- R(a);N_PINB(B)::QAR(A)+B(B)
- Refutation
- R(a);N_PINB(B)
- Try
- B(F);
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XB(B)::QAR2(A),XR(a)
- R(a);N_PINB(B),SBLOCK::QAR(A)+B(B),DCHECK
- R(a);N_PINB(B)::QAR(A)+B(B)
- Refutation
- R(a);N_PINB(B)
- Try
- Q(A);
- Vars
- R(a);CHECK,OGATE,XB(B)::QAR2(A),XR(a)
- R(a);N_PINB(B)::B(B)
- Refutation
- R(a);N_PINB(B),XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Refutation
- R(a);CHECK,XB(B)
- Try
- Q(A);
- Threat
- DUALS(4)
- Refutation
- R(a);CHECK,XB(B)
- Try
- Q(A);
- Threat
- DUALS(4)
- Refutation
- R(a);CHECK,XB(B)
- Try
- Actual
- Q(A);
- Vars
- R(a);CHECK,OGATE,XB(B)::QAR2(A),XR(a)
- R(a);N_PINB(B)::B(B)
- R(a);N_PINB(B)::B(B),XR(a)
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).