MESON Chess Problem Database
Problem Display
PID: 235308 (4BR2/Kb1P2B1/P6p/RN1r2k1/3p3p/3nqp1P/3Q4/4r3 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Deutsche Schachzeitung, 1967
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxb5
- 2.d8Q#
- 2.d8B#
- 1...Rc5
- 2.d8Q#
- 2.d8B#
- 1...Rxb5
- Tries
- 1.Sd6?
- threat
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Rxa5
- 2.d8Q#
- 2.d8B#
- 1...Bxa6
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Rf5
- 2.Raxf5#
- 2.Rfxf5#
- 1...Qf4
- 2.Bf6#
- 1...Ra1
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Rb1
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Rc1
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Rd1
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Rf1
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Rg1
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Rh1
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Re2
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Rb5
- 2.d8Q#
- 2.d8B#
- 1...Rc5
- 2.d8Q#
- 2.d8B#
- 1...Re5
- 2.d8Q#
- 2.d8B#
- 1...Bc6
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Ba8
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Bc8
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Sc1
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Sb2
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Sf2
- 2.d8Q#
- 2.d8B#
- 1...Sb4
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Sf4
- 2.Bf6#
- 1...Sc5
- 2.d8Q#
- 2.d8B#
- 1...Se5
- 2.Se4#
- 2.Rf5#
- 2.d8Q#
- 2.d8B#
- 1...f2
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...h5
- 2.Se4#
- 2.d8Q#
- 2.d8B#
- 1...Qxd2!
- threat
- 1.Sd6?
- Keys
- 1.Sxd4!
- threat
- 2.d8Q#
- 2.d8B#
- 1...Qxd2
- 2.Sxf3#
- 1...Rxa5
- 2.d8Q#
- 2.d8B#
- 1...Bxa6
- 2.d8Q#
- 2.d8B#
- 1...Rf5
- 2.Raxf5#
- 2.Rfxf5#
- 1...Qf4
- 2.Sxf3#
- 2.Bf6#
- 1...Ra1
- 2.d8Q#
- 2.d8B#
- 1...Rb1
- 2.d8Q#
- 2.d8B#
- 1...Rc1
- 2.d8Q#
- 2.d8B#
- 1...Rd1
- 2.d8Q#
- 2.d8B#
- 1...Rf1
- 2.d8Q#
- 2.d8B#
- 1...Rg1
- 2.d8Q#
- 2.d8B#
- 1...Rh1
- 2.d8Q#
- 2.d8B#
- 1...Re2
- 2.d8Q#
- 2.d8B#
- 1...Rb5
- 2.d8Q#
- 2.d8B#
- 1...Rc5
- 2.Se6#
- 2.d8Q#
- 2.d8B#
- 1...Re5
- 2.d8Q#
- 2.d8B#
- 1...Bc6
- 2.d8Q#
- 2.d8B#
- 1...Ba8
- 2.d8Q#
- 2.d8B#
- 1...Bc8
- 2.d8Q#
- 2.d8B#
- 1...Sc1
- 2.d8Q#
- 2.d8B#
- 1...Sb2
- 2.d8Q#
- 2.d8B#
- 1...Sf2
- 2.d8Q#
- 2.d8B#
- 1...Sb4
- 2.d8Q#
- 2.d8B#
- 1...Sf4
- 2.Bf6#
- 1...Sc5
- 2.Sxf3#
- 1...Se5
- 2.Rf5#
- 1...f2
- 2.d8Q#
- 2.d8B#
- 1...h5
- 2.d8Q#
- 2.d8B#
- threat
- 1.Sxd4!
There are these versions: 235309
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(g);N_GUARD,P_SPINR(g),XS(D)::P=Q
- R(g);N_GUARD::P=Q
- Tries
- Try
- S(D);P_PINR(g)
- Threat
- DUALS(3)
- Vars
- R(g);N_SPINR(g),P_PINP(E),XR(C)::P=Q
- Q(c);::B(H)
- R(g);::P=Q
- S(b);::P=Q
- S(b);N_SPINQ(c),SBLOCK::B(H)
- S(b);N_SPINR(g)::P=Q
- Refutation
- Q(c);N_SPINQ(c),XQ(A)
- Try
- Actual
- S(D);P_PINR(g),P_SPINS(D),XP(e)
- Threat
- P=Q
- Vars
- Q(c);N_PINS(D),N_SPINQ(c),XQ(A)::S(D),XP(d)
- R(g);N_SPINR(g),P_PINP(E),XR(C)::P=Q
- B(j);XP(E)::P=Q
- R(a);::P=Q
- R(g);::P=Q
- B(j);::P=Q
- S(b);::P=Q
- S(b);N_SPINQ(c),SBLOCK::B(H)
- S(b);N_PINS(D),N_SPINR(g)::S(D),XP(d)
- S(b);N_SPINR(g),S_CUTR(g)::R1(J)
- P(d);::P=Q
- P(i);::P=Q
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