MESON Chess Problem Database
Problem Display
PID: 138805 (8/8/1p2K3/npb5/nPkpR3/2P4R/4N3/1Q6 w - - 0 1)
Navon, Emanuel
6th HM., Hirschenson JT, 2010
#2
7 + 7
| 145 | StrateGems | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Bxb4
- 2.Qxb4#
- 1...Bd6
- 2.Rxd4#
- 1...Be7
- 2.Rxd4#
- 1...Bf8
- 2.Rxd4#
- 1...Sxc3
- 2.Rxc3#
- 1...Sb3
- 2.Qd3#
- 1...Sc6
- 2.Qa2#
- 1...Sb7
- 2.Qa2#
- 1...Bxb4
- Tries
- 1.Rhe3?
- 1...Bxb4
- 2.Qxb4#
- 1...Sxc3
- 2.Rxc3#
- 1...Bd6
- 2.Rxd4#
- 1...Be7
- 2.Rxd4#
- 1...Bf8
- 2.Rxd4#
- 1...Sb3
- 2.Qd3#
- 1...Sc6
- 2.Qa2#
- 1...Sb7
- 2.Qa2#
- 1...Sb2!
- 1...Bxb4
- 1.Rf3?
- 1...Bxb4
- 2.Qxb4#
- 1...Sxc3
- 2.Rxc3#
- 1...Bd6
- 2.Rxd4#
- 1...Be7
- 2.Rxd4#
- 1...Bf8
- 2.Rxd4#
- 1...Sb3
- 2.Qd3#
- 1...Sc6
- 2.Qa2#
- 1...Sb7
- 2.Qa2#
- 1...Sb2!
- 1...Bxb4
- 1.Rg3?
- 1...Bxb4
- 2.Qxb4#
- 1...Sxc3
- 2.Rxc3#
- 1...Bd6
- 2.Rxd4#
- 1...Be7
- 2.Rxd4#
- 1...Bf8
- 2.Rxd4#
- 1...Sb3
- 2.Qd3#
- 1...Sc6
- 2.Qa2#
- 1...Sb7
- 2.Qa2#
- 1...Sb2!
- 1...Bxb4
- 1.Rf4?
- 1...Bxb4
- 2.Qxb4#
- 1...Sxc3
- 2.Rxc3#
- 1...Bd6
- 2.Rxd4#
- 1...Be7
- 2.Rxd4#
- 1...Bf8
- 2.Rxd4#
- 1...Sb3
- 2.Qd3#
- 1...Sc6
- 2.Qa2#
- 1...Sb7
- 2.Qa2#
- 1...Sb2!
- 1...Bxb4
- 1.Rg4?
- 1...Bxb4
- 2.Qxb4#
- 1...Sxc3
- 2.Rxc3#
- 1...Bd6
- 2.Rxd4#
- 1...Be7
- 2.Rxd4#
- 1...Bf8
- 2.Rxd4#
- 1...Sb3
- 2.Qd3#
- 1...Sc6
- 2.Qa2#
- 1...Sb7
- 2.Qa2#
- 1...Sb2!
- 1...Bxb4
- 1.Reh4?
- 1...Bxb4
- 2.Qxb4#
- 1...Sxc3
- 2.Rxc3#
- 1...Bd6
- 2.Rxd4#
- 1...Be7
- 2.Rxd4#
- 1...Bf8
- 2.Rxd4#
- 1...Sb3
- 2.Qd3#
- 1...Sc6
- 2.Qa2#
- 1...Sb7
- 2.Qa2#
- 1...Sb2!
- 1...Bxb4
- 1.Rhe3?
- Keys
- 1.cxd4!
- threat
- 2.dxc5#
- 1...Bxb4
- 2.Qd3#
- 1...Bxd4
- 2.Rxd4#
- 1...Sb3
- 2.Qxb3#
- 1...Bd6
- 2.d5#
- 1...Be7
- 2.d5#
- 1...Bf8
- 2.d5#
- 1...Sc3
- 2.Rxc3#
- 1...Sc6
- 2.Qb3#
- threat
- 1.cxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(f);OGATE,XP(E)::QAR1(A),XB(f)
- B(f);N_GUARD::R1(F),XP(c)
- S(a);OGATE,XP(C)::R1(D),XS(a)
- S(d);SBLOCK::QAB1(A)
- S(d);N_GUARD::QAB(A)
- Tries
- Try
- R(D);
- Vars
- B(f);OGATE,XP(E)::QAR1(A),XB(f)
- S(a);OGATE,XP(C)::R1(D),XS(a)
- B(f);N_GUARD::R1(F),XP(c)
- S(d);SBLOCK::QAB1(A)
- S(d);N_GUARD::QAB(A)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- B(f);OGATE,XP(E)::QAR1(A),XB(f)
- S(a);OGATE,XP(C)::R1(D),XS(a)
- B(f);N_GUARD::R1(F),XP(c)
- S(d);SBLOCK::QAB1(A)
- S(d);N_GUARD::QAB(A)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- B(f);OGATE,XP(E)::QAR1(A),XB(f)
- S(a);OGATE,XP(C)::R1(D),XS(a)
- B(f);N_GUARD::R1(F),XP(c)
- S(d);SBLOCK::QAB1(A)
- S(d);N_GUARD::QAB(A)
- Refutation
- S(a);
- Try
- R(F);
- Vars
- B(f);OGATE,XP(E)::QAR1(A),XB(f)
- S(a);OGATE,XP(C)::R1(D),XS(a)
- B(f);N_GUARD::R1(F),XP(c)
- S(d);SBLOCK::QAB1(A)
- S(d);N_GUARD::QAB(A)
- Refutation
- S(a);
- Try
- R(F);
- Vars
- B(f);OGATE,XP(E)::QAR1(A),XB(f)
- S(a);OGATE,XP(C)::R1(D),XS(a)
- B(f);N_GUARD::R1(F),XP(c)
- S(d);SBLOCK::QAB1(A)
- S(d);N_GUARD::QAB(A)
- Refutation
- S(a);
- Try
- R(F);
- Vars
- B(f);OGATE,XP(E)::QAR1(A),XB(f)
- S(a);OGATE,XP(C)::R1(D),XS(a)
- B(f);N_GUARD::R1(F),XP(c)
- S(d);SBLOCK::QAB1(A)
- S(d);N_GUARD::QAB(A)
- Refutation
- S(a);
- Try
- Actual
- P(C);XP(c)
- Threat
- R(F)+P(C),XB(f)
- Vars
- B(f);SBLOCK,XP(E)::QAB1(A)
- B(f);OGATE,P_SPINB(f),XP(C)::R1(F),XB(f)
- S(d);N_GUARD::QAB1(A),XS(d)
- B(f);N_GUARD::R(F)+P(C)
- S(a);N_GUARD::R1(D),XS(a)
- S(d);N_GUARD::QAB1(A)
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