MESON Chess Problem Database
Problem Display
PID: 268891 (2K1R3/6P1/2P1Np1B/1p2kPr1/1Q2P3/3P3r/5q2/2N2Rb1 w - - 0 1)
Colaneri, Bruno
Problemas, 2020
#2
12 + 7
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qe3
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qg3
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qd4
- 2.Sxd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qh4
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qb6
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qa7
- 2.Sc7#
- 1...Qb2
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qc2
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qd2
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qe2
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qg2
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qh2
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qf4
- 2.Sd4#
- 2.Sxf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Rxd3
- 2.Sxd3#
- 1...Re3
- 2.Qc5#
- 2.Qd4#
- 1...Rg2
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Rg3
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Rg4
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Rxf5
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Rh5
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Rg6
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Rxg7
- 2.Sxg7#
- 1...Qe1
- Tries
- 1.Sc5+?
- 1...Kd6
- 2.Re6#
- 1...Kf4!
- 1...Kd6
- 1.Bxg5?
- threat
- 2.Sd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Qxf5
- 2.Rxf5#
- 1...Qc5
- 2.Bf4#
- 1...Qd4
- 2.Sxd4#
- 2.Sf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Bf4#
- 1...Qa7
- 2.Sc7#
- 2.Bf4#
- 1...Qa2
- 2.Bf4#
- 1...Qf4
- 2.Sd4#
- 2.Sxf4#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Bxf4#
- 1...Rh8
- 2.Sf8#
- 1...fxg5!
- threat
- 1.Rxf2?
- threat
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Qc5#
- 2.Qd4#
- 1...Rxd3
- 2.Sxd3#
- 2.Sd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Rxf5
- 2.Sd4#
- 2.Sf4#
- 2.Sg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Rxf5#
- 2.Qc5#
- 2.Qd4#
- 1...Rxg7
- 2.Sxg7#
- 2.Bf4#
- 2.Qc5#
- 2.Qd4#
- 1...Rf3
- 2.Qc5#
- 2.Qd4#
- 1...Rg2
- 2.Sd4#
- 2.Sf4#
- 2.Sg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Bf4#
- 2.Qc5#
- 2.Qd4#
- 1...Rgg3
- 2.Sd4#
- 2.Sf4#
- 2.Sg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Bf4#
- 2.Qc5#
- 2.Qd4#
- 1...Rg4
- 2.Sd4#
- 2.Sf4#
- 2.Sg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Qc5#
- 2.Qd4#
- 1...Rgh5
- 2.Sd4#
- 2.Sf4#
- 2.Sg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Bf4#
- 2.Qc5#
- 2.Qd4#
- 1...Rg6
- 2.Sd4#
- 2.Sf4#
- 2.Sg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 2.Bf4#
- 2.Qc5#
- 2.Qd4#
- 1...Bxf2!
- threat
- 1.Qxb5+?
- 1...Kd6
- 2.Qd5#
- 1...Qc5!
- 1...Kd6
- 1.d4+?
- 1...Qxd4
- 2.Sxd4#
- 2.Sf4#
- 2.Sxg5#
- 2.Sc7#
- 2.Sd8#
- 2.Sf8#
- 1...Kxe4!
- 1...Qxd4
- 1.Sc5+?
- Keys
- 1.Kd7!
- threat
- 2.Qd6#
- 1...Qd4+
- 2.Sxd4#
- 1...Qa7+
- 2.Sc7#
- 1...Rxd3+
- 2.Sxd3#
- 1...Rxg7+
- 2.Sxg7#
- 1...Qc5
- 2.Sxc5#
- threat
- 1.Kd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(b);::R(L)+S(H)
- R(c);XP(C)::S(A),XR(c)
- R(f);XP(J)::R(L)+S(H),XR(f)
- Tries
- Try
- S(H);CHECK
- Vars
- K(e);N_GUARD,S_FLIGHT::R1(L)
- Refutation
- K(e);P_SPINQ(b),P_SPINR(f),S_FLIGHT
- Try
- B(I);XR(f)
- Threat
- DUALS(5)
- Vars
- Q(b);OGATE,P_PINS(H),XP(F)::R1(B),XQ(b)
- Q(b);N_GUARD,P_PINP(G)::B(I)
- Q(b);N_GUARD::B(I)
- R(c);P_PINR(L)::R(L)+S(H)
- Refutation
- P(g);XB(I)
- Try
- R(B);XQ(b)
- Threat
- DUALS(8)
- Refutation
- B(a);XR(B)
- Try
- Q(D);CHECK,XP(d)
- Vars
- K(e);S_FLIGHT::QAR1(D)
- Refutation
- Q(b);P_PINP(G),P_SPINQ(b)
- Try
- P(C);CHECK
- Refutation
- K(e);P-FLIGHT,XP(E)
- Try
- Actual
- K(K);S_FLIGHT
- Threat
- QAB1(D)
- Vars
- Q(b);CHECK::R(L)+S(H),XQ(b)
- Q(b);CHECK::R(L)+S(H)
- R(c);CHECK,XP(C)::S(A),XR(c)
- R(f);CHECK,XP(J)::R(L)+S(H),XR(f)
- Q(b);::R(L)+S(H),XQ(b)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).