MESON Chess Problem Database
Problem Display
PID: 240638 (8/2K4p/3N3r/RN1kp1P1/1Pp4R/1n1b4/BB1Q4/8 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Thema Danicum, 1981
#2
10 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re6
- 2.Sc3#
- 1...Sa1
- 2.Sd4#
- 2.Bxc4#
- 1...Sc1
- 2.Sd4#
- 2.Bxc4#
- 1...Sxd2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sc5
- 2.Bxc4#
- 1...c3
- 2.Bxb3#
- 1...Re6
- Tries
- 1.Sa3+?
- 1...Ke6
- 2.Rxe5#
- 1...Sc5
- 2.Bxc4#
- 1...Sxa5!
- 1...Ke6
- 1.Sd4+?
- 1...Sc5
- 2.Rxc5#
- 1...Sxa5!
- 1...Sc5
- 1.Sa7+?
- 1...Ke6
- 2.Rxe5#
- 1...Sc5
- 2.Bxc4#
- 1...Sxa5!
- 1...Ke6
- 1.Rxh6?
- 1...Sxd2
- 2.Sa3#
- 2.Sd4#
- 2.Sa7#
- 1...Sxa5
- 2.Qxd3#
- 1...Sa1
- 2.Sa3#
- 2.Sd4#
- 2.Sa7#
- 2.Bxc4#
- 2.Qxd3#
- 1...Sc1
- 2.Sa3#
- 2.Sd4#
- 2.Sa7#
- 2.Bxc4#
- 1...Sd4
- 2.Sc3#
- 2.Sxd4#
- 1...Sc5
- 2.Bxc4#
- 1...c3
- 2.Bxb3#
- 2.Qxd3#
- 1...e4!
- 1...Sxd2
- 1.Qc3?
- threat
- 2.Qxe5#
- 1...Ke6
- 2.Qxe5#
- 1...Sd4
- 2.Sxd4#
- 1...e4
- 2.Qe5#
- 1...Re6!
- threat
- 1.Qh2?
- threat
- 2.Qxe5#
- 1...Ke6
- 2.Qxe5#
- 1...Re6
- 2.Sc3#
- 1...Sd4
- 2.Sxd4#
- 1...e4
- 2.Qe5#
- 1...c3!
- threat
- 1.Qxd3+?
- 1...Sd4
- 2.Sxd4#
- 2.Bxc4#
- 2.Qxc4#
- 1...cxd3
- 2.Sd4#
- 2.Bxb3#
- 1...Ke6!
- 1...Sd4
- 1.Sa3+?
- Keys
- 1.Re4!
- threat
- 2.Rxe5#
- 1...Ke6
- 2.Rxe5#
- 1...Re6
- 2.Sc3#
- 1...Sd4
- 2.Sxd4#
- 1...c3
- 2.Bxb3#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(f);SBLOCK::R(F)+S(G),DCHECK
- S(a);N_GUARD,N_SPINB(b),P_SPINP(c),XQ(C)::R(F)+S(G)
- S(a);N_GUARD,N_SPINB(b),P_SPINP(c)::R(F)+S(G),XS(a)
- S(a);OGATE,P_SPINP(c)::B(A),XP(c)
- P(c);OGATEB,P_SPINS(a)::B(A),XS(a)
- Tries
- Try
- S(G);CHECK
- Vars
- K(d);N_SPINB(b),OGATE,S_FLIGHT::R1(F),XP(e)
- S(a);OGATE,P_SPINP(c),P_SPINS(a)::B(A),XP(c)
- Refutation
- S(a);P_SPINP(c),XR(F)
- Try
- S(G);CHECK,N_PINB(b)
- Vars
- S(a);N_GUARD,P_SPINP(c),P_SPINS(a)::R1(F),XS(a)
- Refutation
- S(a);P_SPINP(c),XR(F)
- Try
- S(G);CHECK
- Vars
- K(d);N_SPINB(b),OGATE,S_FLIGHT::R1(F),XP(e)
- S(a);OGATE,P_SPINP(c),P_SPINS(a)::B(A),XP(c)
- Refutation
- S(a);P_SPINP(c),XR(F)
- Try
- R(E);XR(f)
- Vars
- S(a);N_GUARD,P_SPINP(c),XR(F)::QAR2(C),XB(b)
- S(a);OGATE,P_SPINP(c)::B(A),XP(c)
- Refutation
- P(e);
- Try
- Q(C);N_PINB(b)
- Threat
- QAR1(C),XP(e)
- Vars
- K(d);S_FLIGHT::QAR1(C),XP(e)
- S(a);N_GUARD,P_SPINP(c)::R(F)+S(G),XS(a)
- P(e);::QAR1(C)
- Refutation
- R(f);
- Try
- Q(C);N_PINB(b)
- Threat
- QAR1(C),XP(e)
- Vars
- K(d);S_FLIGHT::QAR1(C),XP(e)
- R(f);SBLOCK::R(F)+S(G),DCHECK
- S(a);N_GUARD,P_SPINP(c)::R(F)+S(G),XS(a)
- P(e);::QAR1(C)
- Refutation
- P(c);P_SPINS(a)
- Try
- Q(C);CHECK,XB(b)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- R(E);
- Threat
- R1(E),XP(e)
- Vars
- K(d);N_SPINB(b),P_SPINP(e),S_FLIGHT::R1(E),XP(e)
- R(f);SBLOCK::R(F)+S(G),DCHECK
- S(a);N_GUARD,N_SPINB(b),P_SPINP(c)::R(F)+S(G),XS(a)
- P(c);OGATEB,P_SPINS(a)::B(A),XS(a)
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