MESON Chess Problem Database
Problem Display
PID: 162982 (7B/2RK4/1p1N4/1P1k1P2/p5p1/pr1N1r2/1p2R3/Q7 w - - 0 1)
Petite, Efren
Best Problems, 2012
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Sb4#
- 1...Rb4
- 2.Sxb4#
- 1...Re3
- 2.Sf4#
- 1...Rg3
- 2.Sf4#
- 1...Rh3
- 2.Sf4#
- 1...Rf4
- 2.Sxf4#
- 1...b1Q
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 1...b1S
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 1...b1B
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 1...b1R
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 1...Rc3
- Tries
- 1.Sc8?
- threat
- 2.Sxb6#
- 2.Se7#
- 1...Rxb5
- 2.Se7#
- 1...Re3!
- threat
- 1.Qg1?
- threat
- 2.Re5#
- 2.Qd4#
- 1...Rbxd3
- 2.Re5#
- 1...Rfxd3
- 2.Re5#
- 1...Rxf5
- 2.Qd4#
- 1...Rb4
- 2.Sxb4#
- 2.Re5#
- 1...Re3
- 2.Sf4#
- 1...Rf4
- 2.Sxf4#
- 2.Re5#
- 1...Rf2!
- threat
- 1.Qh1?
- threat
- 2.Sf4#
- 1...Rb4
- 2.Sxb4#
- 1...Rxd3!
- threat
- 1.Qa2?
- threat
- 2.Sb4#
- 1...Rf4
- 2.Sxf4#
- 1...Rxd3!
- threat
- 1.Sc8?
- Keys
- 1.Rd2!
- threat
- 2.Sb4#
- 2.Sf4#
- 1...Rbxd3
- 2.Qa2#
- 1...Rfxd3
- 2.Qh1#
- 1...Rb4
- 2.Sxb4#
- 2.Sf4#
- 1...Rf4
- 2.Sb4#
- 2.Sxf4#
- threat
- 1.Rd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(c);N_GUARD::S(C)
- R(c);N_GUARD::S(C),XR(c)
- R(d);N_GUARD::S(C)
- R(d);N_GUARD::S(C),XR(d)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(c);XP(D)::S(F)
- Refutation
- R(d);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(c);XS(C)::R1(B)
- R(d);XS(C)::R1(B)
- R(d);XP(E)::QAR1(A)
- R(d);N_GUARD::S(C)
- Refutation
- R(d);
- Try
- Q(A);P_PINR(d)
- Threat
- S(C)
- Vars
- R(c);N_GUARD::S(C),XR(c)
- Refutation
- R(c);XS(C)
- Try
- Q(A);P_PINR(c)
- Threat
- S(C)
- Vars
- R(d);N_GUARD::S(C),XR(d)
- Refutation
- R(d);XS(C)
- Try
- Actual
- R(B);
- Threat
- DUALS(2)
- Vars
- R(c);OGATEB,P_SPINR(c),XS(C)::QAB(A)
- R(d);OGATEB,P_SPINR(d),XS(C)::QAB(A)
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