MESON Chess Problem Database
Problem Display
PID: 197295 (8/4K3/4P3/1nQb4/3rP1RB/5N2/6p1/2Rn3k w - - 0 1)
Karin, Aleksey
Zadachi i Etyudi, 1996
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Rd2
- 2.Qg1#
- 1...Rd3
- 2.Qg1#
- 1...Ra4
- 2.Qg1#
- 1...Rb4
- 2.Qg1#
- 1...Rc4
- 2.Qg1#
- 1...Rxe4
- 2.Qg1#
- 1...g1Q
- 2.Rxg1#
- 1...g1S
- 2.Rxg1#
- 1...g1B
- 2.Rxg1#
- 1...g1R
- 2.Rxg1#
- 1...Rd2
- Tries
- 1.Be1?
- threat
- 2.Rh4#
- 1...Rxe4
- 2.Qg1#
- 1...Bxe6
- 2.Qh5#
- 1...g1Q
- 2.Rxg1#
- 1...g1S
- 2.Rxg1#
- 1...g1B
- 2.Rxg1#
- 1...g1R
- 2.Rxg1#
- 1...Sf2!
- threat
- 1.Bf2?
- threat
- 2.Rh4#
- 1...Bxe6
- 2.Qh5#
- 1...g1Q
- 2.Rxg1#
- 1...g1S
- 2.Rxg1#
- 1...g1B
- 2.Rxg1#
- 1...g1R
- 2.Rxg1#
- 1...Rxe4!
- threat
- 1.Bg5?
- threat
- 2.Rh4#
- 1...Rxe4
- 2.Qg1#
- 1...g1Q
- 2.Rxg1#
- 1...g1S
- 2.Rxg1#
- 1...g1B
- 2.Rxg1#
- 1...g1R
- 2.Rxg1#
- 1...Bxe6!
- threat
- 1.Rxd1+?
- 1...g1Q
- 2.Rdxg1#
- 2.Rgxg1#
- 1...g1S
- 2.Rdxg1#
- 2.Rgxg1#
- 1...g1B
- 2.Rdxg1#
- 2.Rgxg1#
- 1...g1R
- 2.Rdxg1#
- 2.Rgxg1#
- 1...Rxd1!
- 1...g1Q
- 1.Rxg2?
- threat
- 2.Rg1#
- 2.Rh2#
- 1...Rd2
- 2.Rg1#
- 2.Qg1#
- 1...Kxg2!
- threat
- 1.Rg3?
- threat
- 2.Rh3#
- 1...g1Q
- 2.Rxg1#
- 1...g1S
- 2.Rxg1#
- 1...g1B
- 2.Rxg1#
- 1...g1R
- 2.Rxg1#
- 1...Bxe6!
- threat
- 1.Qxd4?
- threat
- 2.Qg1#
- 1...g1Q
- 2.Rxg1#
- 2.Qxg1#
- 1...g1S
- 2.Rxg1#
- 2.Qxg1#
- 1...g1B
- 2.Rxg1#
- 2.Qxg1#
- 1...g1R
- 2.Rxg1#
- 2.Qxg1#
- 1...Sxd4!
- threat
- 1.Qd6?
- threat
- 2.Qh2#
- 1...g1Q
- 2.Rxg1#
- 1...g1B
- 2.Rxg1#
- 1...Sxd6!
- threat
- 1.Qc2?
- threat
- 2.Qxg2#
- 1...g1Q
- 2.Rxg1#
- 1...g1S
- 2.Rxg1#
- 2.Qg2#
- 2.Qh2#
- 1...g1B
- 2.Rxg1#
- 2.Qg2#
- 1...g1R
- 2.Rxg1#
- 2.Qh2#
- 1...Rd2!
- threat
- 1.Be1?
- Keys
- 1.Bf6!
- threat
- 2.Rh4#
- 1...Rxe4
- 2.Qg1#
- 1...Bxe6
- 2.Qh5#
- 1...g1Q
- 2.Rxg1#
- 1...g1S
- 2.Rxg1#
- 1...g1B
- 2.Rxg1#
- 1...g1R
- 2.Rxg1#
- threat
- 1.Bf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(d);OGATE::QAR1(F)
- R(d);OGATE,P_PINP(G),XP(C)::QAR1(F)
- P(c);N_SPINS(a),OGATE::R1(D),XQ(c)
- P(c);N_SPINS(a),OGATE::R1(D),XS(c)
- P(c);N_SPINS(a),OGATE::R1(D),XB(c)
- P(c);N_SPINS(a),OGATE::R1(D),XR(c)
- Tries
- Try
- B(E);N_PINS(a)
- Threat
- R(D)
- Vars
- R(d);OGATE,P_PINP(G),XP(C)::QAR1(F)
- B(f);OGATE,XP(G)::QAR(F)
- P(c);OGATE::R1(D),XQ(c)
- P(c);OGATE::R1(D),XS(c)
- P(c);OGATE::R1(D),XB(c)
- P(c);OGATE::R1(D),XR(c)
- Refutation
- S(a);
- Try
- B(E);
- Threat
- R(D)
- Vars
- B(f);OGATE,XP(G)::QAR(F)
- P(c);N_SPINS(a),OGATE::R1(D),XQ(c)
- P(c);N_SPINS(a),OGATE::R1(D),XS(c)
- P(c);N_SPINS(a),OGATE::R1(D),XB(c)
- P(c);N_SPINS(a),OGATE::R1(D),XR(c)
- Refutation
- R(d);P_PINP(G),XP(C)
- Try
- B(E);
- Threat
- R(D)
- Vars
- R(d);OGATE,P_PINP(G),XP(C)::QAR1(F)
- P(c);N_SPINS(a),OGATE::R1(D),XQ(c)
- P(c);N_SPINS(a),OGATE::R1(D),XS(c)
- P(c);N_SPINS(a),OGATE::R1(D),XB(c)
- P(c);N_SPINS(a),OGATE::R1(D),XR(c)
- Refutation
- B(f);XP(G)
- Try
- R(A);CHECK,XS(a)
- Refutation
- R(d);XR(A)
- Try
- R(D);XP(c)
- Threat
- DUALS(2)
- Refutation
- K(b);N_SPINS(a),S_FLIGHT,XR(D)
- Try
- R(D);
- Threat
- R(D)
- Vars
- P(c);N_SPINS(a),OGATE::R1(D),XQ(c)
- P(c);N_SPINS(a),OGATE::R1(D),XS(c)
- P(c);N_SPINS(a),OGATE::R1(D),XB(c)
- P(c);N_SPINS(a),OGATE::R1(D),XR(c)
- Refutation
- B(f);XP(G)
- Try
- Q(F);XR(d)
- Threat
- QAR1(F)
- Refutation
- S(e);XQ(F)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- P(c);N_SPINS(a),OGATE::R1(D),XQ(c)
- P(c);N_SPINS(a),OGATE::R1(D),XB(c)
- Refutation
- S(e);XQ(F)
- Try
- Q(F);
- Threat
- QAB1(F),XP(c)
- Vars
- P(c);N_SPINS(a),OGATE::R1(D),XQ(c)
- Refutation
- R(d);
- Try
- Actual
- B(E);
- Threat
- R(D)
- Vars
- R(d);OGATE,P_PINP(G),XP(C)::QAR1(F)
- B(f);OGATE,XP(G)::QAR(F)
- P(c);N_SPINS(a),OGATE::R1(D),XQ(c)
- P(c);N_SPINS(a),OGATE::R1(D),XS(c)
- P(c);N_SPINS(a),OGATE::R1(D),XB(c)
- P(c);N_SPINS(a),OGATE::R1(D),XR(c)
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).