MESON Chess Problem Database

Problem Display
PID: 272894 (3QB3/8/6pq/prpn1p2/2kPN2R/Kp1n2br/1PP2P2/3R4 w - - 0 1)

Ekstrom, Sven Johan Adrian

Schackvarlden, 1941

3QB3/8/6pq/prpn1p2/2kPN2R/Kp1n2br/1PP2P2/3R4

#2

10 + 12

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qd2
      • 2.Sxd2#
    • 1...Qg7
      • 2.Sd2#
    • 1...Qf8
      • 2.Sd2#
    • 1...Qh5
      • 2.Sd2#
    • 1...Qh7
      • 2.Sd2#
    • 1...Qh8
      • 2.Sd2#
    • 1...Bxf2
      • 2.Sd6#
    • 1...Bd6
      • 2.Sxd6#
    • 1...S3b4
      • 2.cxb3#
    • 1...S3f4
      • 2.Sd6#
    • 1...Se5
      • 2.Sd6#
    • 1...Sc3
      • 2.cxd3#
    • 1...Se3
      • 2.Sd2#
      • 2.cxd3#
    • 1...S5b4
      • 2.cxb3#
    • 1...S5f4
      • 2.Sd2#
    • 1...Sb6
      • 2.cxd3#
    • 1...Sf6
      • 2.cxd3#
    • 1...Sc7
      • 2.cxd3#
    • 1...Se7
      • 2.cxd3#
    • 1...cxd4
      • 2.cxd3#
    • 1...g5
      • 2.Sd2#
  • Keys
    • 1.Bc6!
      • threat
        • 2.Qxd5#
      • 1...Kxd4
        • 2.Qxd5#
      • 1...cxd4
        • 2.cxd3#
      • 1...Bd6
        • 2.Sxd6#
      • 1...S3b4
        • 2.cxb3#
      • 1...S3f4
        • 2.Sd6#
      • 1...Sc3
        • 2.cxd3#
      • 1...Se3
        • 2.Sd2#
        • 2.cxd3#
      • 1...S5b4
        • 2.cxb3#
      • 1...S5f4
        • 2.Sd2#
      • 1...Sb6
        • 2.cxd3#
      • 1...Sf6
        • 2.cxd3#
      • 1...Sc7
        • 2.cxd3#
      • 1...Se7
        • 2.cxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(l);N_GUARD::S(G),XQ(l)
    • Q(l);N_GUARD::S(G)
    • B(c);N_GUARD,XP(D)::S(G)
    • B(c);N_GUARD::S(G),XB(c)
    • S(b);S_CUTR(g)::P(C),XP(a)
    • S(b);S_CUTB(c)::S(G)
    • S(i);::P(C),XS(b)
    • S(i);S_CUTR(g)::P(C),XP(a)
    • S(i);S_CUTQ(l)::S(G)
    • P(h);SBLOCK,XP(F)::P(C),XS(b)
    • P(k);S_CUTQ(l)::S(G)
  • Actual
    • B(J);
    • Threat
      • QAB1(I),XS(i)
    • Vars
      • K(e);P-FLIGHT,P_SPINS(b),XP(F)::QAR1(I),XS(i)
      • P(h);SBLOCK,XP(F)::P(C),XS(b)
      • B(c);N_GUARD::S(G),XB(c)
      • S(b);S_CUTR(g)::P(C),XP(a)
      • S(b);S_CUTB(c)::S(G)
      • S(i);::P(C),XS(b)
      • S(i);S_CUTR(g)::P(C),XP(a)
      • S(i);S_CUTQ(l)::S(G)
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