MESON Chess Problem Database
Problem Display
PID: 248112 (8/3NKN2/3B4/1p2p1p1/R1Pk4/1n1b1Q2/1P6/4rn2 w - - 0 1)
de Blasio, Francis JC
Comm., White MT (A), 1952-1953
#2
8 + 8
| 14867 | BCPS Library | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Bxe5#
- 1...Rb1
- 2.Bxe5#
- 1...Rc1
- 2.Bxe5#
- 1...Rd1
- 2.Bxe5#
- 1...Re3
- 2.Qd5#
- 1...Bb1
- 2.cxb5#
- 1...Bc2
- 2.cxb5#
- 1...Be2
- 2.Bxe5#
- 1...Be4
- 2.Bxe5#
- 2.Qc3#
- 1...Bf5
- 2.cxb5#
- 1...Bg6
- 2.cxb5#
- 1...Bh7
- 2.cxb5#
- 1...Se3
- 2.Bxe5#
- 1...Sa1
- 2.Bc5#
- 1...Sc1
- 2.Bc5#
- 1...Sd2
- 2.Bc5#
- 1...Sa5
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...e4
- 2.Be5#
- 1...Ra1
- Tries
- 1.Sc5?
- threat
- 2.Sxb3#
- 2.Se6#
- 2.Qxd3#
- 1...Bxc4
- 2.Sxb3#
- 2.Se6#
- 2.Qd3#
- 1...bxa4
- 2.Qxd3#
- 1...b4
- 2.Qxd3#
- 1...Rd1
- 2.Sxb3#
- 2.Se6#
- 1...Re3
- 2.Sxb3#
- 2.Se6#
- 2.Qd5#
- 1...Bb1
- 2.Sxb3#
- 2.Se6#
- 2.Qc3#
- 2.cxb5#
- 1...Bc2
- 2.Se6#
- 2.Qc3#
- 2.cxb5#
- 1...Be2
- 2.Sxb3#
- 2.Se6#
- 2.Qe4#
- 2.Qc3#
- 1...Be4
- 2.Sxb3#
- 2.Se6#
- 2.Qc3#
- 1...Bf5
- 2.Sxb3#
- 2.Qc3#
- 2.cxb5#
- 1...Bg6
- 2.Sxb3#
- 2.Se6#
- 2.Qc3#
- 2.cxb5#
- 1...Bh7
- 2.Sxb3#
- 2.Se6#
- 2.Qc3#
- 2.cxb5#
- 1...Sfd2
- 2.Se6#
- 2.Qxd3#
- 1...Se3
- 2.Sxb3#
- 2.Se6#
- 1...Sa1
- 2.Se6#
- 2.Qxd3#
- 1...Sc1
- 2.Se6#
- 1...Sbd2
- 2.Se6#
- 2.Qxd3#
- 1...Sa5
- 2.Se6#
- 2.Qxd3#
- 1...e4
- 2.Sxb3#
- 2.Se6#
- 1...Sxc5!
- threat
- 1.Sc5?
- Keys
- 1.Sfxe5!
- threat
- 2.Qxd3#
- 1...Rxe5+
- 2.Bxe5#
- 1...Bxc4
- 2.Qd3#
- 1...Rd1
- 2.Sc6#
- 1...Re3
- 2.Qd5#
- 1...Bb1
- 2.cxb5#
- 1...Bc2
- 2.cxb5#
- 1...Be2
- 2.Sc6#
- 1...Be4
- 2.Qc3#
- 1...Bf5
- 2.cxb5#
- 1...Bg6
- 2.cxb5#
- 1...Bh7
- 2.cxb5#
- 1...Se3
- 2.Sc6#
- 1...Sc1
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- threat
- 1.Sfxe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- R(a);N_GUARD::B(E),XP(g)
- R(a);SBLOCK::QAR1(B)
- B(d);N_GUARD::R(C)+P(D),XP(f)
- B(d);S_CUTR(a)::B(E),XP(g)
- S(b);S_CUTR(a)::B(E),XP(g)
- S(c);N_GUARD::B(E)
- S(c);N_GUARD::B(E),XS(c)
- P(g);S_CUTR(a)::B(E)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- P(f);XR(C)::QAR1(B),XB(d)
- P(f);::QAR1(B),XB(d)
- S(c);::S(F)
- Refutation
- S(c);XS(F)
- Try
- Actual
- S(H);P_SPINS(H),XP(g)
- Threat
- QAR1(B),XB(d)
- Vars
- R(a);CHECK,OGATE,XS(H)::B(E),XR(a)
- B(d);P_SPINB(d),XP(D)::QAR1(B)
- R(a);N_PINS(H)::S(H)
- R(a);SBLOCK::QAR1(B)
- B(d);N_GUARD::R(C)+P(D),XP(f)
- B(d);N_PINS(H)::S(H)
- B(d);N_PINS(H),OGATE,SBLOCK::QAB1(B)
- S(b);N_PINS(H)::S(H)
- S(c);N_GUARD::B(E)
- S(c);N_GUARD::B(E),XS(c)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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