MESON Chess Problem Database

Problem Display
PID: 35814 (2bB4/2pPKR2/nrP1pP1r/N1P2Rp1/1p1k4/1P1q2N1/2QP1P2/6b1 w - - 0 1)

Machler, Emil

2nd Prize, Neue Zurcher Zeitung, 1991-1992

2bB4/2pPKR2/nrP1pP1r/N1P2Rp1/1p1k4/1P1q2N1/2QP1P2/6b1

#2

14 + 11

3454 kunstschach (1987-1996) (Hoffmann) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Qe4#
    • 1...Qe2
      • 2.Sxe2#
    • 1...Qc4
      • 2.Qe4#
      • 2.Qxc4#
    • 1...Qe4
      • 2.Qxe4#
      • 2.Qc4#
    • 1...Qb5
      • 2.Qe4#
    • 1...Qxd2
      • 2.Qxd2#
      • 2.Qc4#
    • 1...Qxb3
      • 2.Se2#
      • 2.Sxb3#
      • 2.Qe4#
    • 1...Qc3
      • 2.Se2#
      • 2.Qe4#
    • 1...Qe3
      • 2.Qc4#
      • 2.dxe3#
    • 1...Qf3
      • 2.Qc4#
    • 1...Qxg3
      • 2.Qc4#
    • 1...Rxc6
      • 2.Sxc6#
    • 1...Sxc5
      • 2.Qxc5#
  • Keys
    • 1.Kxe6!
      • threat
        • 2.Rd5#
      • 1...Qe2+
        • 2.Sxe2#
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qe4+
        • 2.Qxe4#
      • 1...Qxf5+
        • 2.Sxf5#
      • 1...Qxb3+
        • 2.Sxb3#
      • 1...Qe3+
        • 2.dxe3#
      • 1...Rxc6+
        • 2.Sxc6#
      • 1...Rxf6+
        • 2.Bxf6#
      • 1...Bxd7+
        • 2.Rxd7#
      • 1...Sxc5+
        • 2.Qxc5#
      • 1...Qf3
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 3
  • Sets
    • Q(b);OGATE::QAR1(A)
    • Q(b);N_GUARD::S(E),XQ(b)
    • Q(b);N_GUARD::QAR1(A)
    • Q(b);N_GUARD,XS(E)::QAR1(A)
    • R(g);XP(I)::S(F),XR(g)
    • S(f);OGATE,XP(G)::QAB1(A),XS(f)
  • Actual
    • K(L);P-FLIGHT,P_SPINP(I),XP(h)
    • Threat
      • R1(H)
    • Vars
      • Q(b);CHECK,N_GUARD::S(E),XQ(b)
      • Q(b);CHECK,N_GUARD::QAR1(A),XQ(b)
      • Q(b);CHECK,OGATE::QAR1(A),XQ(b)
      • Q(b);CHECK,XR(H)::S(E),XQ(b)
      • Q(b);CHECK,XP(D)::S(F),XQ(b)
      • Q(b);CHECK,OGATE::P(B),XQ(b)
      • R(g);CHECK,P_PINP(J),XP(I)::S(F),XR(g)
      • R(i);CHECK,OGATE,XP(J)::B(N),XR(i)
      • B(k);CHECK,OGATE,XP(K)::R(M),XB(k)
      • S(f);CHECK,OGATE,XP(G)::QAB1(A),XS(f)
      • Q(b);N_GUARD::QAR1(A)
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