MESON Chess Problem Database
Problem Display
PID: 164457 (8/8/1p6/1B4N1/2r3p1/1NpknbR1/KP3Q2/8 w - - 0 1)
Romanovskis, Vladimirs
Sachmatija, 2007
#2
7 + 7
| 5454 | Near Snap | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Rxe3#
- 1...Bh1
- 2.Rxe3#
- 1...Be2
- 2.Qf5#
- 1...Bg2
- 2.Rxe3#
- 1...Be4
- 2.Rxe3#
- 1...Bd5
- 2.Rxe3#
- 1...Bc6
- 2.Rxe3#
- 1...Bb7
- 2.Rxe3#
- 1...Ba8
- 2.Rxe3#
- 1...Sd1
- 2.Sc1#
- 1...Sf1
- 2.Sc1#
- 1...Sc2
- 2.Sc1#
- 1...Sg2
- 2.Sc1#
- 1...Sd5
- 2.Sc1#
- 1...Sf5
- 2.Sc1#
- 1...cxb2
- 2.Qd2#
- 1...c2
- 2.Qd2#
- 1...Bd1
- Tries
- 1.Kb1?
- 1...cxb2
- 2.Qd2#
- 1...Bd1
- 2.Rxe3#
- 2.Qxe3#
- 1...Bh1
- 2.Rxe3#
- 2.Qxe3#
- 2.Qf1#
- 2.Qc2#
- 1...Be2
- 2.Rxe3#
- 2.Qxe3#
- 2.Qf5#
- 1...Bg2
- 2.Rxe3#
- 2.Qxe3#
- 2.Qc2#
- 1...Be4
- 2.Rxe3#
- 2.Qxe3#
- 2.Qf1#
- 2.Qc2#
- 1...Bd5
- 2.Rxe3#
- 2.Qxe3#
- 2.Qf1#
- 2.Qc2#
- 1...Bc6
- 2.Rxe3#
- 2.Qxe3#
- 2.Qf1#
- 2.Qc2#
- 1...Bb7
- 2.Rxe3#
- 2.Qxe3#
- 2.Qf1#
- 2.Qc2#
- 1...Ba8
- 2.Rxe3#
- 2.Qxe3#
- 2.Qf1#
- 2.Qc2#
- 1...Sd1
- 2.Sc1#
- 1...Sf1
- 2.Sc1#
- 1...Sc2
- 2.Sc1#
- 1...Sg2
- 2.Sc1#
- 1...Sd5
- 2.Sc1#
- 1...Sf5
- 2.Sc1#
- 1...c2+!
- 1...cxb2
- 1.Ka3?
- 1...cxb2
- 2.Qd2#
- 1...Be2
- 2.Qf5#
- 1...Bd1
- 2.Rxe3#
- 1...Bh1
- 2.Rxe3#
- 1...Bg2
- 2.Rxe3#
- 1...Be4
- 2.Rxe3#
- 1...Bd5
- 2.Rxe3#
- 1...Bc6
- 2.Rxe3#
- 1...Bb7
- 2.Rxe3#
- 1...Ba8
- 2.Rxe3#
- 1...Sd1
- 2.Sc1#
- 1...Sf1
- 2.Sc1#
- 1...Sg2
- 2.Sc1#
- 1...Sd5
- 2.Sc1#
- 1...Sf5
- 2.Sc1#
- 1...c2
- 2.Qd2#
- 1...Sc2+!
- 1...cxb2
- 1.Bxc4+?
- 1...Sxc4
- 2.Sc1#
- 1...Kxc4!
- 1...Sxc4
- 1.Ba6?
- 1...cxb2
- 2.Qd2#
- 1...Be2
- 2.Qf5#
- 1...Bd1
- 2.Rxe3#
- 1...Bh1
- 2.Rxe3#
- 1...Bg2
- 2.Rxe3#
- 1...Be4
- 2.Rxe3#
- 1...Bd5
- 2.Rxe3#
- 1...Bc6
- 2.Rxe3#
- 1...Bb7
- 2.Rxe3#
- 1...Ba8
- 2.Rxe3#
- 1...Sd1
- 2.Sc1#
- 1...Sf1
- 2.Sc1#
- 1...Sc2
- 2.Sc1#
- 1...Sg2
- 2.Sc1#
- 1...Sd5
- 2.Sc1#
- 1...Sf5
- 2.Sc1#
- 1...c2
- 2.Qd2#
- 1...b5!
- 1...cxb2
- 1.Qf1+?
- 1...Kc2
- 2.Qb1#
- 1...Be2
- 2.Qf5#
- 1...Sxf1!
- 1...Kc2
- 1.Kb1?
- Keys
- 1.Qe1!
- 1...Kc2
- 2.Qb1#
- 1...cxb2
- 2.Qd2#
- 1...Bd1
- 2.Qxd1#
- 1...Bh1
- 2.Qd1#
- 1...Be2
- 2.Qxc3#
- 1...Bg2
- 2.Qd1#
- 1...Be4
- 2.Qd1#
- 1...Bd5
- 2.Qd1#
- 1...Bc6
- 2.Qd1#
- 1...Bb7
- 2.Qd1#
- 1...Ba8
- 2.Qd1#
- 1...Sd1
- 2.Qe4#
- 1...Sf1
- 2.Qe4#
- 1...Sc2
- 2.Qe4#
- 1...Sg2
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...Sf5
- 2.Qe4#
- 1...c2
- 2.Qd2#
- 1...Kc2
- 1.Qe1!
Anticipated by 93934(1962)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 15
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(d);OGATE,P_SPINS(c)::R1(E),XS(c)
- B(d);OGATE,P_SPINS(c),SBLOCK::QAB(C)
- S(c);P_SPINB(d)::S(D)
- P(a);N_GUARD,XP(B)::QAR1(C)
- P(a);N_GUARD::QAR1(C)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- P(a);N_GUARD,XP(B)::QAR1(C)
- S(c);P_SPINB(d)::S(D)
- Refutation
- P(a);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- P(a);N_GUARD,XP(B)::QAR1(C)
- B(d);OGATE,P_SPINS(c),SBLOCK::QAB(C)
- B(d);OGATE,P_SPINS(c)::R1(E),XS(c)
- S(c);P_SPINB(d)::S(D)
- P(a);N_GUARD::QAR1(C)
- Refutation
- S(c);CHECK,P_SPINB(d)
- Try
- B(F);CHECK,XR(e)
- Vars
- S(c);P_SPINB(d),SBLOCK,XB(F)::S(D)
- Refutation
- K(b);S_FLIGHT,XB(F)
- Try
- B(F);
- Vars
- P(a);N_GUARD,XP(B)::QAR1(C)
- B(d);OGATE,P_SPINS(c),SBLOCK::QAB(C)
- B(d);OGATE,P_SPINS(c)::R1(E),XS(c)
- S(c);P_SPINB(d)::S(D)
- P(a);N_GUARD::QAR1(C)
- Refutation
- P(g);N_SPINR(e)
- Try
- Q(C);CHECK
- Vars
- K(b);N_SPINR(e),S_FLIGHT::QAB1(C)
- B(d);OGATE,P_SPINB(d),P_SPINS(c),SBLOCK::QAB(C)
- Refutation
- S(c);P_SPINB(d),XQ(C)
- Try
- Actual
- Q(C);
- Vars
- K(b);N_SPINR(e),S_FLIGHT::QAB1(C)
- P(a);N_GUARD,XP(B)::QAR1(C)
- B(d);N_GUARD,P_SPINS(c)::QAR2(C),XB(d)
- B(d);N_GUARD,P_SPINS(c)::QAR2(C)
- B(d);P_SPINS(c),SBLOCK::QAR1(C),XP(a)
- S(c);OGATE,P_SPINB(d)::QAB1(C)
- S(c);OGATE,P_SPINB(d),SBLOCK::QAB1(C)
- P(a);N_GUARD::QAR1(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).