MESON Chess Problem Database
Problem Display
PID: 240677 (4Q3/ppNB4/1P2R3/k2r4/7R/rpP5/5B1K/8 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Thema Danicum, 1987
#2
9 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Rxa4#
- 1...Re5
- 2.Rxe5#
- 1...Rh5
- 2.Rxh5#
- 2.Qxh5#
- 1...axb6
- 2.Bxb6#
- 2.Qa8#
- 1...Ra4
- Tries
- 1.Rh5?
- threat
- 2.Rxd5#
- 1...Rxh5+
- 2.Qxh5#
- 1...axb6
- 2.Bxb6#
- 2.Qa8#
- 1...Rc5
- 2.Rxc5#
- 1...Re5
- 2.Rhxe5#
- 2.Rexe5#
- 1...Rf5
- 2.Rxf5#
- 1...Rg5
- 2.Rxg5#
- 1...Rb5!
- threat
- 1.Re5?
- threat
- 2.Rxd5#
- 1...Rxe5
- 2.Qxe5#
- 1...axb6
- 2.Qa8#
- 1...Rb5
- 2.Rxb5#
- 1...Rc5!
- threat
- 1.Qe7?
- threat
- 2.Qxa3#
- 2.Qb4#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra4
- 2.Rxa4#
- 1...Rd4
- 2.Qc5#
- 1...Rb5
- 2.Qxa3#
- 1...Rc5
- 2.Qxc5#
- 1...Rd6!
- threat
- 1.Qb8?
- threat
- 2.Qxa7#
- 1...axb6
- 2.Bxb6#
- 2.Qa7#
- 2.Qa8#
- 1...a6!
- threat
- 1.Qf8?
- threat
- 2.Qxa3#
- 2.Qb4#
- 1...Ra1
- 2.Qb4#
- 1...Ra2
- 2.Qb4#
- 1...Ra4
- 2.Rxa4#
- 1...Rd4
- 2.Qc5#
- 1...Rb5
- 2.Qxa3#
- 1...Rc5
- 2.Qxc5#
- 1...Rd6!
- threat
- 1.bxa7?
- threat
- 2.Bb6#
- 2.a8Q#
- 2.a8R#
- 1...Rxd7
- 2.Bb6#
- 2.a8Q#
- 2.a8R#
- 1...Ra1
- 2.Bb6#
- 2.a8Q#
- 2.a8R#
- 1...Ra2
- 2.a8Q#
- 2.a8R#
- 1...Ra4
- 2.Bb6#
- 2.Rxa4#
- 2.a8Q#
- 2.a8R#
- 1...Rd1
- 2.Bb6#
- 2.a8Q#
- 2.a8R#
- 1...Rd2
- 2.a8Q#
- 2.a8R#
- 1...Rd3
- 2.Bb6#
- 2.a8Q#
- 2.a8R#
- 1...Rd4
- 2.a8Q#
- 2.a8R#
- 1...Rb5
- 2.a8Q#
- 2.a8R#
- 1...Rc5
- 2.a8Q#
- 2.a8R#
- 1...Re5
- 2.Bb6#
- 2.a8Q#
- 2.a8R#
- 1...Rf5
- 2.Bb6#
- 2.a8Q#
- 2.a8R#
- 1...Rg5
- 2.Bb6#
- 2.a8Q#
- 2.a8R#
- 1...Rh5
- 2.Bb6#
- 2.a8Q#
- 2.a8R#
- 1...b2
- 2.Bb6#
- 2.a8Q#
- 2.a8R#
- 1...b5
- 2.Bb6#
- 2.Ra6#
- 2.a8Q#
- 2.a8R#
- 1...b6
- 2.Bxb6#
- 2.a8Q#
- 2.a8R#
- 1...Rd6!
- threat
- 1.Rh5?
- Keys
- 1.Qh5!
- threat
- 2.Qxd5#
- 1...Rxh5
- 2.Rxh5#
- 1...axb6
- 2.Bxb6#
- 1...Rb5
- 2.Qxb5#
- 1...Rc5
- 2.Qxc5#
- 1...Re5
- 2.Rxe5#
- 2.Qxe5#
- 1...Rf5
- 2.Qxf5#
- 1...Rg5
- 2.Qxg5#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- R(a);N_GUARD::R1(D),XR(a)
- R(d);OGATEB::R(F),XR(d)
- Tries
- Try
- R(D);P_PINR(d)
- Threat
- R(D),XR(d)
- Vars
- R(d);CHECK,N_SPINR(d),OGATE,XR(D)::QAB1(I),XR(d)
- R(d);OGATE::R(D),XR(d)
- R(d);OGATEB::R(D),XR(d)
- Refutation
- R(d);
- Try
- R(F);P_PINR(d)
- Threat
- R(F),XR(d)
- Vars
- R(d);N_SPINR(d),OGATE,XR(F)::QAR(I),XR(d)
- P(e);OGATEB,XP(E)::QAR(I)
- R(d);OGATE::R1(F),XR(d)
- Refutation
- R(d);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(a);::QAB1(I)
- R(a);P_PINB(A)::QAB1(I)
- R(a);N_GUARD::R1(D),XR(a)
- R(d);N_GUARD::QAR2(I)
- R(d);::QAR2(I),XR(a)
- R(d);N_GUARD::QAR2(I),XR(d)
- Refutation
- R(d);
- Try
- Q(I);
- Threat
- QAR2(I),XP(e)
- Refutation
- P(e);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(a);::QAB1(I)
- R(a);P_PINB(A)::QAB1(I)
- R(a);N_GUARD::R1(D),XR(a)
- R(d);N_GUARD::QAR2(I)
- R(d);::QAR2(I),XR(a)
- R(d);N_GUARD::QAR2(I),XR(d)
- Refutation
- R(d);
- Try
- P(E);XP(e)
- Threat
- DUALS(3)
- Vars
- R(a);P_PINB(A)::P=Q
- R(d);P_PINB(A)::P=Q
- R(d);::P=Q
- Refutation
- R(d);
- Try
- Actual
- Q(I);P_PINR(d)
- Threat
- QAR(I),XR(d)
- Vars
- R(d);N_SPINR(d),OGATE,P_PINR(D),XQ(I)::R(D),XR(d)
- P(e);OGATE,XP(E)::B(A),XP(e)
- R(d);OGATE::QAR1(I),XR(d)
- R(d);OGATE::QAR2(I),XR(d)
- R(d);OGATEB::QAR(I),XR(d)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).