MESON Chess Problem Database
Problem Display
PID: 200293 (4RB1b/2P5/qpp5/1r1N1pP1/Pp1k1p2/1RN2P1n/1Q2B3/K4n2 w - - 0 1)
Rozijn, DA
Probleemblad, 1980
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se4#
- 2.Sb5#
- 1...Sd2
- 2.Qxd2#
- 1...Sh2
- 2.Qd2#
- 1...Se3
- 2.Qd2#
- 1...Sg3
- 2.Qd2#
- 1...cxd5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se4#
- 2.Sxb5#
- 1...Rxd5
- Tries
- 1.Se3?
- threat
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se4#
- 2.Sxb5#
- 2.Scd5#
- 2.Sc2#
- 1...Qxa4+
- 2.Sa2#
- 2.Sxa4#
- 1...Sxe3
- 2.Qd2#
- 1...bxc3
- 2.Qxc3#
- 1...Re5
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se4#
- 2.Sb5#
- 2.Scd5#
- 2.Sc2#
- 1...Ra5
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se4#
- 2.Sb5#
- 2.Scd5#
- 2.Sc2#
- 1...Rc5
- 2.Sb5#
- 2.Sc2#
- 1...Rd5
- 2.Sb1#
- 2.Scd1#
- 2.Sa2#
- 2.Se4#
- 2.Sb5#
- 2.Scxd5#
- 2.Sc2#
- 1...fxe3!
- threat
- 1.Sxb4?
- threat
- 2.Sb1#
- 2.Sd1#
- 2.Sca2#
- 2.Se4#
- 2.Sxb5#
- 2.Scd5#
- 2.Sc2#
- 2.Sxc6#
- 1...Qxa4+
- 2.Sca2#
- 2.Sxa4#
- 1...Re5
- 2.Sb1#
- 2.Sd1#
- 2.Sca2#
- 2.Se4#
- 2.Sb5#
- 2.Scd5#
- 2.Sc2#
- 1...Be5
- 2.Sb1#
- 2.Sd1#
- 2.Sca2#
- 2.Se4#
- 2.Sxb5#
- 2.Scd5#
- 2.Sc2#
- 1...Qb7
- 2.Sb1#
- 2.Sd1#
- 2.Sca2#
- 2.Se4#
- 2.Sxb5#
- 2.Scd5#
- 2.Sc2#
- 1...Qa8
- 2.Sb1#
- 2.Sd1#
- 2.Sca2#
- 2.Se4#
- 2.Sxb5#
- 2.Scd5#
- 2.Sc2#
- 1...Ra5
- 2.Sb1#
- 2.Sd1#
- 2.Sca2#
- 2.Se4#
- 2.Sb5#
- 2.Scd5#
- 2.Sc2#
- 2.Sxc6#
- 1...Rc5
- 2.Sb5#
- 2.Sc2#
- 1...Rd5
- 2.Sb1#
- 2.Sd1#
- 2.Sca2#
- 2.Se4#
- 2.Sb5#
- 2.Scxd5#
- 2.Sc2#
- 2.Sxc6#
- 1...Se3
- 2.Sb1#
- 2.Sd1#
- 2.Sca2#
- 2.Se4#
- 2.Sxb5#
- 2.Scd5#
- 2.Sxc6#
- 2.Qd2#
- 1...c5
- 2.Sb1#
- 2.Sd1#
- 2.Sca2#
- 2.Se4#
- 2.Sxb5#
- 2.Scd5#
- 2.Sc2#
- 2.Sc6#
- 1...Rxb4!
- threat
- 1.Sxf4?
- threat
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se4#
- 2.Sxb5#
- 2.Scd5#
- 1...Qxa4+
- 2.Sa2#
- 2.Sxa4#
- 1...bxc3
- 2.Qxc3#
- 1...Re5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se4#
- 2.Sb5#
- 2.Scd5#
- 1...Ra5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se4#
- 2.Sb5#
- 2.Scd5#
- 1...Rc5
- 2.Sb5#
- 1...Rd5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se4#
- 2.Sb5#
- 2.Scxd5#
- 1...Sxf4!
- threat
- 1.Sf6?
- threat
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Sce4#
- 2.Sxb5#
- 2.Scd5#
- 1...Qxa4+
- 2.Sa2#
- 2.Sxa4#
- 1...bxc3
- 2.Qxc3#
- 1...Re5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Sce4#
- 2.Sb5#
- 2.Scd5#
- 1...Ra5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Sce4#
- 2.Sb5#
- 2.Scd5#
- 1...Rc5
- 2.Sb5#
- 1...Rd5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Sce4#
- 2.Sb5#
- 2.Scxd5#
- 1...Bxf6!
- threat
- 1.Rd8?
- threat
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se4#
- 2.Sxb5#
- 1...Qxa4+
- 2.Sa2#
- 2.Sxa4#
- 1...Rxd5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se4#
- 2.Sb5#
- 2.Sxd5#
- 1...bxc3
- 2.Qxc3#
- 1...Ra5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se4#
- 2.Sb5#
- 1...Rc5
- 2.Sb5#
- 1...Ke5!
- threat
- 1.Se3?
- Keys
- 1.Se7!
- threat
- 2.Se4#
- 2.Sxc6#
- 1...Qxa4+
- 2.Sxa4#
- 1...Ke3
- 2.Sd1#
- 1...Kc5
- 2.Sxf5#
- 1...Ke5
- 2.Sxc6#
- 1...bxc3
- 2.Qxc3#
- 1...Qb7
- 2.Se4#
- 1...Qa8
- 2.Se4#
- 1...Rc5
- 2.Sb5#
- 1...Re5
- 2.Se4#
- 1...Be5
- 2.Se4#
- 2.Sxf5#
- 1...c5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se4#
- 2.Sxb5#
- 2.Scd5#
- 2.Sxf5#
- 2.Sc6#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 4
- Sets
- S(a);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR2(B)
- Tries
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- S(a);N_GUARD,XS(H)::QAR2(B)
- P(c);OGATE,P_SPINP(c),XS(E)::QAB1(B),XP(c)
- Refutation
- P(e);XS(H)
- Try
- S(H);XP(c)
- Threat
- DUALS(8)
- Refutation
- R(f);XS(H)
- Try
- S(H);XP(e)
- Threat
- DUALS(6)
- Vars
- P(c);OGATE,P_SPINP(c),XS(E)::QAB1(B),XP(c)
- R(f);::QAB(B)+S(E),DCHECK
- Refutation
- S(b);XS(H)
- Try
- S(H);
- Threat
- DUALS(6)
- Vars
- P(c);OGATE,P_SPINP(c),XS(E)::QAB1(B),XP(c)
- R(f);::QAB(B)+S(E),DCHECK
- Refutation
- B(k);XS(H)
- Try
- R(K);
- Threat
- DUALS(5)
- Vars
- P(c);OGATE,P_SPINP(c),XS(E)::QAB1(B),XP(c)
- R(f);::QAB(B)+S(E),DCHECK
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,XP(G)::QAB(B)+S(E),XQ(h)
- K(d);S_FLIGHT::R(D)+S(E),DCHECK
- K(d);S_FLIGHT::B(L)+S(H),XP(g)
- K(d);S_FLIGHT::R(K)+S(H),DCHECK,XP(j)
- P(c);OGATE,P_SPINP(c),XS(E)::QAB1(B),XP(c)
- Q(h);N_PINP(G)::QAB(B)+S(E)
- Q(h);::QAB(B)+S(E)
- R(f);SBLOCK::QAB(B)+S(E),DCHECK
- R(f);SBLOCK::QAB(B)+S(E)
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