MESON Chess Problem Database

Problem Display
PID: 197333 (1b6/3N2K1/2p3bR/2Bkp3/p2NR3/1p6/qp6/5Q2 w - - 0 1)

Supp, Walter

Hannoversche Allgemeine Zeitung, 2001

(First published on Sat Sep 1 2001)

1b6/3N2K1/2p3bR/2Bkp3/p2NR3/1p6/qp6/5Q2

#2

7 + 9

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qf3#
    • 1...Bxe4
      • 2.Qf7#
    • 1...Ba7
      • 2.Rxe5#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Qc4#
      • 1...Kxe4
        • 2.Sf6#
      • 1...Ke6
        • 2.Qf7#
      • 1...Bxe4
        • 2.Se3#
        • 2.Sb4#
        • 2.Qf7#
      • 1...bxc2!
    • 1.Sxb3?
      • threat
        • 2.Qc4#
      • 1...Kxe4
        • 2.Sf6#
      • 1...Ke6
        • 2.Qf7#
      • 1...Bxe4
        • 2.Sb6#
        • 2.Qf7#
      • 1...Qxb3!
    • 1.Sb5?
      • threat
        • 2.Qc4#
      • 1...Kxe4
        • 2.Sc3#
        • 2.Sf6#
      • 1...Ke6
        • 2.Qf7#
      • 1...Bxe4
        • 2.Sc3#
        • 2.Qf7#
      • 1...cxb5!
    • 1.Sf5?
      • threat
        • 2.Qc4#
      • 1...Kxe4
        • 2.Sf6#
      • 1...Ke6!
    • 1.Sb6+?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kxc5!
    • 1.Qf7+?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Bxf7!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qc4#
      • 1...Kxe4
        • 2.Sf6#
      • 1...Kxe6
        • 2.Qf7#
      • 1...Bxe4
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(e);OGATEB,S_FLIGHT,XR(C)::QAB1(A)
    • B(h);N_GUARD,SBLOCK,XR(C)::QAB(A)
    • B(i);N_GUARD::R1(C),XP(f)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(e);S_FLIGHT,XR(C)::S(F)
        • K(e);P_SPINB(h),P_SPINP(f),S_FLIGHT::QAB1(A)
      • Refutation
        • P(c);XS(B)
    • Try
      • S(B);XP(c)
      • Threat
        • QAB1(A)
      • Vars
        • K(e);S_FLIGHT,XR(C)::S(F)
        • K(e);P_SPINB(h),P_SPINP(f),S_FLIGHT::QAB1(A)
      • Refutation
        • Q(a);XS(B)
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(e);P_SPINB(h),P_SPINP(f),S_FLIGHT::QAB1(A)
      • Refutation
        • P(g);XS(B)
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(e);S_FLIGHT,XR(C)::S(F)
      • Refutation
        • K(e);P_SPINB(h),P_SPINP(f),S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(e);S_FLIGHT,XR(C)::QAB1(A)
      • Refutation
        • K(e);P-FLIGHT,XB(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);OGATEB,S_FLIGHT,XR(C)::QAB1(A)
      • Refutation
        • B(h);XQ(A)
  • Actual
    • S(B);
    • Threat
      • QAB1(A)
    • Vars
      • K(e);S_FLIGHT,XR(C)::S(F)
      • K(e);OGATEB,P_SPINB(h),P_SPINP(f),S_FLIGHT,XS(B)::QAB1(A)
      • B(h);SBLOCK,XR(C)::S(F)
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