MESON Chess Problem Database
Problem Display
PID: 274997 (2bR4/r4Q1p/4p3/3R4/4k3/1r4P1/4P3/2b3BK w - - 0 1)
Moen, Kabe
Problem Paradise, 2023
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qf3#
- 1...Rb2
- 2.Qf3#
- 1...Rd3
- 2.exd3#
- 1...Re3
- 2.Qf4#
- 1...Rf3
- 2.Qxf3#
- 2.exf3#
- 1...Rb4
- 2.Qf3#
- 1...Rb5
- 2.Qf3#
- 1...Rb6
- 2.Qf3#
- 1...Rbb7
- 2.Qf3#
- 1...Rb8
- 2.Qf3#
- 1...Ra1
- 2.Qxh7#
- 1...Ra2
- 2.Qxh7#
- 1...Ra3
- 2.Qxh7#
- 1...Ra4
- 2.Qxh7#
- 1...Ra5
- 2.Qxh7#
- 1...Ra6
- 2.Qxh7#
- 1...Rd7
- 2.Qxe6#
- 1...Ra8
- 2.Qxh7#
- 1...Bb2
- 2.Qf4#
- 1...Ba3
- 2.Qf4#
- 1...Be3
- 2.Qf3#
- 1...Bf4
- 2.Qxf4#
- 1...Ba6
- 2.Qxe6#
- 1...Bb7
- 2.Qxe6#
- 2.Qxh7#
- 1...exd5
- 2.Qxd5#
- 1...h5
- 2.Qg6#
- 1...h6
- 2.Qg6#
- 1...Rb1
- Tries
- 1.Be3?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Kxe3
- 2.Re5#
- 2.Qf3#
- 1...Rxe3
- 2.Qf4#
- 1...Bxe3
- 2.Qf3#
- 1...exd5
- 2.Qf4#
- 1...Rd7
- 2.Qxe6#
- 2.Qf3#
- 1...Bd7
- 2.Qf3#
- 1...e5
- 2.Qf3#
- 1...Rxf7!
- threat
- 1.Bd4?
- threat
- 2.Re5#
- 1...exd5
- 2.Qxd5#
- 1...Rd7
- 2.Qxe6#
- 1...Rb5
- 2.Qf3#
- 1...Ra5
- 2.Qxh7#
- 1...Bf4
- 2.Qxf4#
- 1...e5
- 2.Rxe5#
- 1...Bd7!
- threat
- 1.Rg5?
- threat
- 2.Rd4#
- 1...Rd3
- 2.exd3#
- 1...Re3
- 2.Qf4#
- 1...Rb4
- 2.Qf3#
- 1...Ra4
- 2.Qxh7#
- 1...Rd7
- 2.Qxe6#
- 1...Bb2
- 2.Qf4#
- 1...Be3
- 2.Qf3#
- 1...Bd7
- 2.Qxh7#
- 1...e5
- 2.Qc4#
- 2.Qd5#
- 1...Bxg5!
- threat
- 1.Rh5?
- threat
- 2.Rd4#
- 1...Rd3
- 2.exd3#
- 1...Re3
- 2.Qf4#
- 1...Rb4
- 2.Qf3#
- 1...Ra4
- 2.Qxh7#
- 1...Rd7
- 2.Qxe6#
- 1...Bb2
- 2.Qf4#
- 1...Be3
- 2.Qf3#
- 1...Bd7
- 2.Qxh7#
- 1...e5
- 2.Qc4#
- 2.Qd5#
- 1...Bg5!
- threat
- 1.Qh5?
- threat
- 2.Rd4#
- 2.Re5#
- 2.Qe5#
- 1...Rxg3
- 2.Rd4#
- 2.Qe5#
- 1...exd5
- 2.Qxd5#
- 1...Rd3
- 2.Re5#
- 2.Qe5#
- 2.exd3#
- 1...Rb4
- 2.Re5#
- 2.Qf3#
- 2.Qe5#
- 1...Rb5
- 2.Rd4#
- 2.Qf3#
- 2.Qe5#
- 1...Ra4
- 2.Re5#
- 2.Qe5#
- 2.Qxh7#
- 1...Ra5
- 2.Rd4#
- 2.Qe5#
- 2.Qxh7#
- 1...Rd7
- 2.Re5#
- 2.Qe5#
- 1...Bb2
- 2.Qg4#
- 2.Qh4#
- 1...Be3
- 2.Re5#
- 2.Qf3#
- 2.Qe5#
- 1...Bf4
- 2.Rd4#
- 1...e5
- 2.Rxe5#
- 2.Qxe5#
- 1...Bg5!
- threat
- 1.Qf6?
- threat
- 2.Rd4#
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 1...Rd7
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 2.Qxe6#
- 1...Rd3
- 2.Re5#
- 2.Qe5#
- 2.exd3#
- 1...Rb4
- 2.Re5#
- 2.Qe5#
- 2.Qf3#
- 1...Rb5
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 2.Qf3#
- 1...Ra4
- 2.Re5#
- 2.Qe5#
- 1...Ra5
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Bb2
- 2.Qh4#
- 2.Qf4#
- 1...Be3
- 2.Re5#
- 2.Qe5#
- 2.Qf3#
- 1...Bf4
- 2.Rd4#
- 2.Qd4#
- 2.Qxf4#
- 1...e5
- 2.Rxe5#
- 2.Qxe5#
- 1...exd5!
- threat
- 1.Be3?
- Keys
- 1.Rc5!
- threat
- 2.Rd4#
- 1...Rd3
- 2.exd3#
- 1...Re3
- 2.Qf4#
- 1...Rb4
- 2.Qf3#
- 1...Ra4
- 2.Qxh7#
- 1...Rd7
- 2.Qxe6#
- 1...Bb2
- 2.Qf4#
- 1...Be3
- 2.Qf3#
- 1...Bd7
- 2.Qxh7#
- 1...e5
- 2.Rc4#
- threat
- 1.Rc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 18
- Sets
- R(b);N_GUARD::QAB1(F)
- R(b);OGATE::P(C),XR(b)
- R(b);S_CUTB(a)::QAR1(F)
- R(e);N_GUARD::QAB(F),XP(f)
- R(e);S_CUTB(g)::QAR2(F),XP(d)
- B(a);N_GUARD::QAR1(F)
- B(a);S_CUTR(b)::QAB1(F)
- B(a);N_GUARD::QAR1(F),XB(a)
- B(g);N_GUARD::QAR2(F),XP(d)
- P(d);OGATE,XR(E)::QAB1(F),XP(d)
- P(f);N_GUARD::QAB(F)
- Tries
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(b);XB(A)::QAR1(F)
- B(a);XB(A)::QAB1(F)
- P(d);XR(E)::QAR1(F)
- B(g);::QAB1(F)
- P(d);::QAB1(F)
- Refutation
- R(e);XQ(F)
- Try
- B(A);
- Threat
- R1(E)
- Vars
- P(d);OGATE,XR(E)::QAB1(F),XP(d)
- R(e);S_CUTB(g)::QAR2(F),XP(d)
- R(b);N_GUARD::QAB1(F)
- R(e);N_GUARD::QAB(F),XP(f)
- B(a);N_GUARD::QAR1(F),XB(a)
- P(d);::R1(E),XP(d)
- Refutation
- B(g);
- Try
- R(E);
- Threat
- R1(G)
- Vars
- R(b);OGATE::P(C),XR(b)
- R(b);S_CUTB(a)::QAR1(F)
- R(b);N_GUARD::QAB1(F)
- R(e);N_GUARD::QAB(F),XP(f)
- R(e);S_CUTB(g)::QAR2(F),XP(d)
- B(a);N_GUARD::QAR1(F)
- B(a);S_CUTR(b)::QAB1(F)
- B(g);S_CUTR(e)::QAB(F),XP(f)
- Refutation
- B(a);XR(E)
- Try
- R(E);
- Threat
- R1(G)
- Vars
- R(b);OGATE::P(C),XR(b)
- R(b);S_CUTB(a)::QAR1(F)
- R(b);N_GUARD::QAB1(F)
- R(e);N_GUARD::QAB(F),XP(f)
- R(e);S_CUTB(g)::QAR2(F),XP(d)
- B(a);N_GUARD::QAR1(F)
- B(a);S_CUTR(b)::QAB1(F)
- B(g);S_CUTR(e)::QAB(F),XP(f)
- Refutation
- B(a);
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- P(d);OGATE,XR(E)::QAB1(F),XP(d)
- B(a);::R1(E)
- Refutation
- B(a);
- Try
- Q(F);
- Threat
- DUALS(4)
- Refutation
- P(d);XR(E)
- Try
- Actual
- R(E);
- Threat
- R1(G)
- Vars
- R(b);OGATE::P(C),XR(b)
- R(b);S_CUTB(a)::QAR1(F)
- R(b);N_GUARD::QAB1(F)
- R(e);N_GUARD::QAB(F),XP(f)
- R(e);S_CUTB(g)::QAR2(F),XP(d)
- B(a);N_GUARD::QAR1(F)
- B(a);S_CUTR(b)::QAB1(F)
- B(g);S_CUTR(e)::QAB(F),XP(f)
- P(d);SBLOCK::R(E)
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).