MESON Chess Problem Database

Problem Display
PID: 108524 (1q3N1b/2pRQ3/Ppk1Kn2/8/b1B5/2R1B3/8/1rr5 w - - 0 1)

Kapros, Jorge Marcelo

La Prensa, 1975

1q3N1b/2pRQ3/Ppk1Kn2/8/b1B5/2R1B3/8/1rr5

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qa8
      • 2.Rxc7#
    • 1...Qe8
      • 2.Rxc7#
    • 1...Qxf8
      • 2.Rxc7#
    • 1...Rb5
      • 2.Bd5#
    • 1...Rd1
      • 2.Bf1#
      • 2.Be2#
      • 2.Bd3#
    • 1...Re1
      • 2.Bf1#
      • 2.Be2#
      • 2.Bd3#
    • 1...Rf1
      • 2.Bxf1#
      • 2.Be2#
      • 2.Bd3#
    • 1...Rg1
      • 2.Bf1#
      • 2.Be2#
      • 2.Bd3#
    • 1...Rh1
      • 2.Bf1#
      • 2.Be2#
      • 2.Bd3#
    • 1...Bc2
      • 2.Bf1#
      • 2.Be2#
      • 2.Bd3#
    • 1...Bb5
      • 2.Bd5#
    • 1...Sxd7
      • 2.Qxd7#
    • 1...b5
      • 2.Bd5#
      • 2.Qc5#
  • Keys
    • 1.Kf5!
      • threat
        • 2.Qe6#
      • 1...Rb5+
        • 2.Bd5#
      • 1...Rf1+
        • 2.Bxf1#
      • 1...Bc2+
        • 2.Bd3#
      • 1...Qxf8
        • 2.Rxc7#
      • 1...Qe8
        • 2.Rxc7#
      • 1...Rd1
        • 2.Bf1#
        • 2.Be2#
        • 2.Bd3#
      • 1...Se4
        • 2.Qxe4#
      • 1...Se8
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • Q(h);N_GUARD::R1(F),XP(g)
    • Q(h);N_GUARD,P_PINQ(G)::R1(F),XP(g)
    • Q(h);N_GUARD,XS(H)::R1(F),XP(g)
    • R(a);SBLOCK::R(A)+B(C),DCHECK
    • B(c);SBLOCK::R(A)+B(C),DCHECK
    • S(f);OGATE,XR(F)::QAB1(G),XS(f)
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • QAR2(G)
    • Vars
      • R(a);CHECK,SBLOCK::R(A)+B(C),DCHECK
      • R(b);CHECK,N_GUARD::R(A)+B(C),XR(b)
      • B(c);CHECK,S_CUTR(b)::R(A)+B(C)
      • Q(h);N_GUARD,XS(H)::R1(F),XP(g)
      • Q(h);N_GUARD::R1(F),XP(g)
      • S(f);N_GUARD::QAB(G),XS(f)
      • S(f);N_GUARD::QAB(G)
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