MESON Chess Problem Database
Problem Display
PID: 79813 (2Kb4/2n1B3/3p4/7Q/BpNR4/2kP1P2/2N1P1n1/2R3q1 w - - 0 1)
Savournin, Jacques
Europe Echecs, 1982
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Qxd4
- 2.Sa1#
- 2.Se1#
- 2.S2a3#
- 2.S2e3#
- 1...b3
- 2.Qa5#
- 1...d5
- 2.Bxb4#
- 1...Qxd4
- Tries
- 1.Sa1+?
- 1...Kxd4
- 2.Sb3#
- 1...Qxc1!
- 1...Kxd4
- 1.Sxb4+?
- 1...Kxb4
- 2.Qa5#
- 1...Kxd4
- 2.Sc6#
- 1...Qxc1!
- 1...Kxb4
- 1.Re4?
- threat
- 2.Se1#
- 1...Qxc1
- 2.Qh8#
- 1...Qe3
- 2.S2xe3#
- 1...Qd1
- 2.Qh8#
- 1...Qe1
- 2.Sxe1#
- 2.Qh8#
- 1...Se1
- 2.Sxe1#
- 1...b3
- 2.Qa5#
- 1...Se3!
- threat
- 1.Rg4?
- threat
- 2.Se1#
- 1...Qxc1
- 2.Qh8#
- 1...Qe3
- 2.S2xe3#
- 1...Qd1
- 2.Qh8#
- 1...Qe1
- 2.Sxe1#
- 2.Qh8#
- 1...Se1
- 2.Sxe1#
- 1...Se3
- 2.Qh8#
- 1...b3
- 2.Qa5#
- 1...Sf4!
- threat
- 1.Rxd6?
- threat
- 2.Se1#
- 1...Qxc1
- 2.Qe5#
- 2.Qh8#
- 1...Se3
- 2.Qe5#
- 1...Qe3
- 2.S2xe3#
- 1...Qd1
- 2.Qe5#
- 2.Qh8#
- 1...Qe1
- 2.Sxe1#
- 2.Qe5#
- 2.Qh8#
- 1...Se1
- 2.Sxe1#
- 1...b3
- 2.Qa5#
- 1...Sd5!
- threat
- 1.Qc5?
- threat
- 2.Se1#
- 2.Qxb4#
- 1...Qxc1
- 2.Qxb4#
- 1...Se3
- 2.Qxb4#
- 1...Qe3
- 2.S2xe3#
- 2.Qxb4#
- 1...Qd1
- 2.Qxb4#
- 1...Qe1
- 2.Sxe1#
- 2.Qxb4#
- 1...Se1
- 2.Sxe1#
- 2.Qxb4#
- 1...Sd5
- 2.Se1#
- 1...Sa6
- 2.Se1#
- 1...b3
- 2.Se1#
- 2.Qb4#
- 2.Qa5#
- 1...dxc5!
- threat
- 1.Qh8?
- threat
- 2.Se1#
- 1...Qxc1
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rd5#
- 2.Rxd6#
- 1...Se3
- 2.Rg4#
- 1...Qe3
- 2.S2xe3#
- 1...Qd1
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rd5#
- 2.Rxd6#
- 1...Qe1
- 2.Sxe1#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rd5#
- 2.Rxd6#
- 1...Se1
- 2.Sxe1#
- 1...b3!
- threat
- 1.Sa1+?
- Keys
- 1.Qe5!
- threat
- 2.Se1#
- 1...Qxc1
- 2.Rxd6#
- 1...dxe5
- 2.Bxb4#
- 1...Se3
- 2.Rxd6#
- 1...Qe3
- 2.S2xe3#
- 1...Qd1
- 2.Rxd6#
- 1...Qe1
- 2.Sxe1#
- 2.Rxd6#
- 1...Se1
- 2.Sxe1#
- 1...b3
- 2.Qa5#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- P(d);OGATEB::QAB(I)
- P(e);OGATE::B(J),XP(d)
- Tries
- Try
- S(B);CHECK
- Vars
- K(c);S_FLIGHT,XR(H)::S(B)
- Refutation
- Q(a);XR(A)
- Try
- S(B);CHECK,XP(d)
- Vars
- K(c);P_SPINP(e),S_FLIGHT,XS(B)::QAB1(I)
- K(c);S_FLIGHT,XR(H)::S(B)
- Refutation
- Q(a);XR(A)
- Try
- R(H);
- Threat
- R(A)+S(B)
- Vars
- Q(a);N_GUARD,XR(A)::QAB(I)
- Q(a);N_GUARD::R(A)+S(B),XQ(a)
- Q(a);N_GUARD::QAB(I)
- S(b);::R(A)+S(B),XS(b)
- P(d);OGATEB::QAB(I)
- Refutation
- S(b);
- Try
- R(H);
- Threat
- R(A)+S(B)
- Vars
- Q(a);N_GUARD,XR(A)::QAB(I)
- Q(a);N_GUARD::R(A)+S(B),XQ(a)
- Q(a);N_GUARD::QAB(I)
- S(b);::R(A)+S(B),XS(b)
- S(b);S_CUTQ(a)::QAB(I)
- P(d);OGATEB::QAB(I)
- Refutation
- S(b);
- Try
- R(H);XP(e)
- Threat
- R(A)+S(B)
- Vars
- S(b);S_CUTQ(a)::QAB(I)
- Q(a);N_GUARD::R(A)+S(B),XQ(a)
- S(b);::R(A)+S(B),XS(b)
- P(d);OGATEB::QAB(I)
- Refutation
- S(f);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(a);XR(A)::QAB1(I),XP(d)
- S(b);::QAB1(I),XP(d)
- Q(a);::QAB1(I),XP(d)
- S(f);::R(A)+S(B)
- Refutation
- P(e);XQ(I)
- Try
- Q(I);
- Threat
- R(A)+S(B)
- Vars
- S(b);S_CUTQ(a)::QAB(I)+R(H)
- Q(a);N_GUARD::R(A)+S(B),XQ(a)
- S(b);::R(A)+S(B),XS(b)
- Refutation
- P(d);
- Try
- Actual
- Q(I);
- Threat
- R(A)+S(B)
- Vars
- Q(a);N_GUARD,XR(A)::QAB(I)+R(H),XP(e)
- P(e);OGATE,XQ(I)::B(J),XP(d)
- S(b);S_CUTQ(a)::QAB(I)+R(H),XP(e)
- Q(a);N_GUARD::R(A)+S(B),XQ(a)
- Q(a);N_GUARD::QAB(I)+R(H),XP(e)
- S(b);::R(A)+S(B),XS(b)
- P(d);OGATEB::QAB(I)
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