MESON Chess Problem Database

Problem Display
PID: 239618 (1B4QK/2nbp1n1/8/2pN3p/p1Nk4/5P2/1P1pB3/7R w - - 0 1)

Maleika, Gerhard

idee & form, 2007

1B4QK/2nbp1n1/8/2pN3p/p1Nk4/5P2/1P1pB3/7R

#2

9 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bb5
      • 2.Rh4#
    • 1...Bc6
      • 2.Rh4#
    • 1...Be8
      • 2.Rh4#
    • 1...Sb5
      • 2.Be5#
    • 1...Sxd5
      • 2.Be5#
    • 1...Sa6
      • 2.Be5#
    • 1...Sa8
      • 2.Be5#
    • 1...Sce8
      • 2.Be5#
    • 1...d1Q
      • 2.Rxd1#
    • 1...d1S
      • 2.Rxd1#
    • 1...d1B
      • 2.Rxd1#
    • 1...d1R
      • 2.Rxd1#
  • Tries
    • 1.Sxc7?
      • threat
        • 2.Qd5#
      • 1...Be6
        • 2.Qxg7#
      • 1...Se6
        • 2.Qg1#
      • 1...e6
        • 2.Rh4#
      • 1...Bc6!
    • 1.Sxe7?
      • threat
        • 2.Qxg7#
      • 1...Sd5
        • 2.Be5#
        • 2.Qxd5#
      • 1...Sce6
        • 2.Be5#
      • 1...Sce8
        • 2.Be5#
        • 2.Qd5#
      • 1...Sge6
        • 2.Qg1#
      • 1...Sge8
        • 2.Qg1#
      • 1...Sf5!
    • 1.Qxg7+?
      • 1...e5
        • 2.Qxe5#
      • 1...Kxd5!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Sc2#
      • 1...cxb4
        • 2.Ba7#
      • 1...d1Q
        • 2.Rxd1#
      • 1...d1B
        • 2.Rxd1#
      • 1...Bf5
        • 2.Sc6#
      • 1...Be6
        • 2.Qxg7#
      • 1...Sce6
        • 2.Be5#
      • 1...Sge6
        • 2.Qg1#
      • 1...e6
        • 2.Rh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 10
  • Sets
    • B(g);N_GUARD::R(A)
    • S(f);OGATE::B(G)
    • S(f);OGATE,XS(F)::B(G)
    • P(a);OGATEB::R(A),XQ(a)
    • P(a);OGATEB::R(A),XS(a)
    • P(a);OGATEB::R(A),XB(a)
    • P(a);OGATEB::R(A),XR(a)
  • Tries
    • Try
      • S(F);XS(f)
      • Threat
        • QAR1(H)
      • Vars
        • B(g);S_CUTP(h)::QAB(H),XS(i)
        • S(i);OGATE::QAB(H)
        • P(h);S_CUTB(g)::R(A)
      • Refutation
        • B(g);
    • Try
      • S(F);XP(h)
      • Threat
        • QAB(H),XS(i)
      • Vars
        • S(f);OGATE::B(G)
        • S(i);OGATE::QAB(H)
      • Refutation
        • S(i);
    • Try
      • Q(H);CHECK,XS(i)
      • Vars
        • P(h);P_SPINP(h)::QAB1(H),XP(h)
      • Refutation
        • K(c);P-FLIGHT,XS(F)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • P(d);OGATEB,XS(F)::B(G)
      • P(a);OGATEB::R(A),XQ(a)
      • P(a);OGATEB::R(A),XB(a)
      • B(g);N_GUARD::S(F)
      • B(g);S_CUTP(h)::QAB(H),XS(i)
      • S(f);OGATE::B(G)
      • S(i);OGATE::QAB(H)
      • P(h);S_CUTB(g)::R(A)
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