MESON Chess Problem Database

Problem Display
PID: 16638 (N1R3Bb/KP1p4/2qPN3/1p1n2p1/2k1p3/Pp2n3/1P1Q4/1b4B1 w - - 0 1)

Hassberg, Eric Manfred

5th Comm., BCF 043. Ty., 1942-1943

N1R3Bb/KP1p4/2qPN3/1p1n2p1/2k1p3/Pp2n3/1P1Q4/1b4B1

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5+
      • 2.Rxc5#
    • 1...Ba2
      • 2.Qe2#
    • 1...Bd4+
      • 2.Qxd4#
    • 1...Sc2
      • 2.Qe2#
    • 1...Sc3
      • 2.Sb6#
    • 1...Sb4
      • 2.Sb6#
    • 1...Sf4
      • 2.Sb6#
    • 1...Sb6
      • 2.Sxb6#
    • 1...Sf6
      • 2.Sb6#
      • 2.Qd4#
    • 1...Se7
      • 2.Sb6#
    • 1...dxe6
      • 2.Rxc6#
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qb4#
      • 1...Qxb7+
        • 2.Sxb7#
      • 1...Qxc5+
        • 2.Sb6#
      • 1...Qa6+
        • 2.Sxa6#
      • 1...Qb6+
        • 2.Sxb6#
      • 1...Kxc5
        • 2.Qxd5#
      • 1...b4
        • 2.Qxb4#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Sc2
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 8
  • Sets
    • Q(i);CHECK,OGATE::R1(J),XQ(i)
    • B(a);N_GUARD::QAB(C)
    • B(k);CHECK,N_GUARD::QAR1(C),XB(k)
    • S(c);S_CUTB(a)::QAB(C)
    • S(g);N_GUARD::S(I)
    • S(g);N_GUARD::S(I),XS(g)
    • P(j);N_GUARD,XS(F)::R(J),XQ(i)
  • Actual
    • S(F);N_PINQ(i),P_PINS(g)
    • Threat
      • QAR1(C)
    • Vars
      • Q(i);CHECK,XP(H)::R(J)+S(F),XQ(i)
      • Q(i);CHECK,N_GUARD,P_SPINQ(i),XS(F)::S(I)
      • Q(i);CHECK::R(J)+S(F),XQ(i)
      • Q(i);CHECK,N_GUARD::S(I),XQ(i)
      • K(d);N_SPINS(g),P-FLIGHT,P_SPINQ(i),P_SPINS(c),XS(F)::QAR1(C),XS(g)
      • P(f);::QAR1(C),XP(f)
      • B(k);N_GUARD::QAR1(C),XB(k)
      • S(c);S_CUTB(a)::QAB(C)
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