MESON Chess Problem Database
Problem Display
PID: 200275 (2b5/2pn4/1b2p2B/pQ5R/p2k2p1/r2NR1K1/3P4/4nB2 w - - 0 1)
Spiess, Jean-Yves
Problemas, 1990
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxd3
- 2.Qxa4#
- 1...Rxd3
- Tries
- 1.Sc1?
- threat
- 2.Se2#
- 2.Qc4#
- 1...Rc3
- 2.Se2#
- 2.dxc3#
- 1...Rd3
- 2.Se2#
- 2.Qxa4#
- 1...Ba6
- 2.Se2#
- 2.Qxd7#
- 1...Sd3
- 2.Se2#
- 1...Se5
- 2.Se2#
- 2.Qxe5#
- 1...Rxe3+!
- threat
- 1.Sxe1?
- threat
- 2.Sc2#
- 2.Qc4#
- 1...Ra2
- 2.Qd3#
- 2.Qc4#
- 1...Rc3
- 2.dxc3#
- 1...Rd3
- 2.Sc2#
- 2.Qxd3#
- 2.Qxa4#
- 1...Ba6
- 2.Sc2#
- 2.Qxd7#
- 1...Se5
- 2.Sc2#
- 2.Qxe5#
- 1...Rxe3+!
- threat
- 1.Sb2?
- threat
- 2.Qc4#
- 1...Rc3
- 2.dxc3#
- 1...Ba6
- 2.Qxd7#
- 1...Se5
- 2.Qxe5#
- 1...Rxe3+!
- threat
- 1.Sb4?
- threat
- 2.Sc6#
- 2.Qc4#
- 1...axb4
- 2.Qc4#
- 2.Qxb4#
- 1...Rc3
- 2.dxc3#
- 1...Rd3
- 2.Sc6#
- 1...Ba6
- 2.Sc6#
- 2.Qxd7#
- 1...Bb7
- 2.Qc4#
- 1...Sd3
- 2.Sc2#
- 2.Sc6#
- 1...Se5
- 2.Qxe5#
- 1...Sb8
- 2.Qc4#
- 2.Qe5#
- 1...c6
- 2.Sxc6#
- 2.Qc4#
- 1...Rxe3+!
- threat
- 1.Sf4?
- threat
- 2.Se2#
- 2.Sxe6#
- 2.Qc4#
- 1...Rc3
- 2.Se2#
- 2.Sxe6#
- 1...Rd3
- 2.Se2#
- 2.Sxe6#
- 2.Qxa4#
- 1...Ba6
- 2.Se2#
- 2.Sxe6#
- 2.Qxd7#
- 1...Sd3
- 2.Se2#
- 2.Sxe6#
- 1...Sc5
- 2.Se2#
- 2.Qc4#
- 1...Se5
- 2.Se2#
- 2.Qxe5#
- 1...Sf6
- 2.Se2#
- 2.Qc4#
- 2.Qe5#
- 1...Sb8
- 2.Se2#
- 2.Qc4#
- 2.Qe5#
- 1...Sf8
- 2.Se2#
- 2.Qc4#
- 2.Qe5#
- 1...e5
- 2.Se2#
- 2.Se6#
- 2.Qc4#
- 2.Qd5#
- 1...Rxe3+!
- threat
- 1.Sc5?
- threat
- 2.Sxe6#
- 2.Qc4#
- 1...Rxe3+
- 2.Bxe3#
- 1...Bxc5
- 2.Qc4#
- 1...Sxc5
- 2.Qc4#
- 1...e5
- 2.Se6#
- 2.Qc4#
- 1...Rc3
- 2.Sxe6#
- 2.dxc3#
- 1...Rd3
- 2.Sxe6#
- 2.Qxa4#
- 1...Ba6
- 2.Sxe6#
- 2.Qxd7#
- 1...Sd3
- 2.Sxe6#
- 2.Re4#
- 1...Sf6
- 2.Qc4#
- 1...Sb8
- 2.Qc4#
- 1...Sf8
- 2.Qc4#
- 1...Se5!
- threat
- 1.Se5?
- threat
- 2.Sc6#
- 2.Qc4#
- 1...Sxe5
- 2.Qxe5#
- 1...Rc3
- 2.dxc3#
- 1...Ba6
- 2.Sc6#
- 1...Bb7
- 2.Qc4#
- 1...Sb8
- 2.Qc4#
- 1...c6
- 2.Sxc6#
- 2.Qc4#
- 1...Rxe3+!
- threat
- 1.Qb2+?
- 1...Rc3
- 2.Qxc3#
- 1...Kc4!
- 1...Rc3
- 1.Sc1?
- Keys
- 1.Sf2!
- threat
- 2.Qc4#
- 1...Rxe3+
- 2.Bxe3#
- 1...Rc3
- 2.dxc3#
- 1...Rd3
- 2.Qxa4#
- 1...Ba6
- 2.Qxd7#
- 1...Sd3
- 2.Re4#
- 1...Se5
- 2.Qxe5#
- threat
- 1.Sf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD,P_PINR(D),XS(C)::QAR(F),XP(c)
- Tries
- Try
- S(C);P_SPINR(D)
- Threat
- DUALS(2)
- Vars
- S(a);N_PINR(D)::S(C)
- Refutation
- R(b);CHECK,XR(D)
- Try
- S(C);P_SPINR(D),XS(a)
- Threat
- DUALS(2)
- Vars
- R(b);OGATE::P(B),XR(b)
- Refutation
- R(b);CHECK,XR(D)
- Try
- S(C);P_SPINR(D)
- Threat
- QAR1(F)
- Vars
- R(b);OGATE::P(B),XR(b)
- B(k);N_GUARD::QAR(F),XS(j)
- S(j);N_GUARD::QAB1(F),XS(j)
- Refutation
- R(b);CHECK,XR(D)
- Try
- S(C);P_SPINR(D)
- Threat
- DUALS(2)
- Vars
- R(b);OGATE::P(B),XR(b)
- R(b);::S(C)
- B(k);::QAR1(F)
- S(j);N_GUARD::QAB1(F),XS(j)
- Refutation
- R(b);CHECK,XR(D)
- Try
- S(C);P_SPINR(D)
- Threat
- DUALS(3)
- Refutation
- R(b);CHECK,XR(D)
- Try
- S(C);P_SPINR(D)
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,OGATE,XR(D)::B(H),XR(b)
- B(g);XS(C)::QAR1(F)
- S(j);XS(C)::QAR1(F)
- S(j);::QAR1(F)
- Refutation
- S(j);
- Try
- S(C);P_SPINR(D)
- Threat
- DUALS(2)
- Vars
- S(j);OGATE,XS(C)::QAB1(F),XS(j)
- R(b);OGATE::P(B),XR(b)
- B(k);::S(C)
- B(k);::QAR1(F)
- S(j);::QAR1(F)
- Refutation
- R(b);CHECK,XR(D)
- Try
- Q(F);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAB1(F),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- Actual
- S(C);P_SPINR(D)
- Threat
- QAR1(F)
- Vars
- R(b);CHECK,OGATE,XR(D)::B(H),XR(b)
- R(b);OGATE::P(B),XR(b)
- R(b);N_GUARD::QAR(F),XP(c)
- B(k);N_GUARD::QAR(F),XS(j)
- S(a);N_PINR(D)::R1(D)
- S(j);N_GUARD::QAB1(F),XS(j)
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