MESON Chess Problem Database

Problem Display
PID: 240722 (3RQ3/1bp1pN2/n4bn1/6p1/N1p1k3/2Pp1RPq/6P1/K1B5 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Thema Danicum, 1998

3RQ3/1bp1pN2/n4bn1/6p1/N1p1k3/2Pp1RPq/6P1/K1B5

#2

10 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Re3#
    • 1...Bxc3+
      • 2.Sxc3#
    • 1...Bd4
      • 2.Rxd4#
    • 1...Be5
      • 2.Sxg5#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Bc8
      • 2.Qc6#
    • 1...Sb4
      • 2.Sc5#
    • 1...Sc5
      • 2.Sxc5#
    • 1...Sb8
      • 2.Sc5#
    • 1...Se5
      • 2.Rd4#
    • 1...e5
      • 2.Rd4#
  • Keys
    • 1.Qb5!
      • threat
        • 2.Re3#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Qxg3
        • 2.Qf5#
      • 1...Bd4
        • 2.Sxg5#
        • 2.Rxd4#
      • 1...Be5
        • 2.Sxg5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Se5
        • 2.Rd4#
      • 1...d2
        • 2.Qb1#
      • 1...c5
        • 2.Qxb7#
      • 1...e5
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • Q(b);SBLOCK::R1(E)
    • B(g);CHECK,XP(D)::S(G),XB(g)
    • B(g);N_GUARD::R1(I),XB(g)
    • B(g);N_GUARD,N_SPINP(k),SBLOCK::S(H),XP(e)
    • B(i);N_GUARD::QAB(J),XB(i)
    • B(i);N_GUARD::QAB(J)
    • S(f);N_GUARD::S(G)
    • S(f);N_GUARD::S(G),XS(f)
    • S(h);N_PINP(D),N_SPINP(k),S_CUTB(g)::R1(I)
    • P(k);N_PINP(D),S_CUTB(g)::R1(I)
  • Actual
    • Q(J);N_PINP(k)
    • Threat
      • R1(E)
    • Vars
      • B(g);CHECK,XP(D)::S(G),XB(g)
      • Q(b);N_GUARD,XP(F)::QAB1(J)
      • B(g);N_GUARD::S(H),XP(e)
      • B(i);N_GUARD::QAB1(J),XB(i)
      • S(f);N_GUARD::S(G),XS(f)
      • S(h);N_PINP(D),S_CUTB(g)::R1(I)
      • P(a);OGATEB::QAB(J)
      • P(j);N_GUARD::QAB(J),XB(i)
      • P(k);N_PINP(D),S_CUTB(g)::QAR2(J),XP(c)
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