MESON Chess Problem Database

Problem Display
PID: 8114 (1B6/4Kp1n/R7/1Q1p4/4k1p1/4pN2/p3prp1/8 w - - 0 1)

Banny, Dimitry Nikolaevich

Schach-Report/Deutsche Schachblatter, 1995

1B6/4Kp1n/R7/1Q1p4/4k1p1/4pN2/p3prp1/8

#2

5 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf3
      • 2.Qxd5#
    • 1...Kf5
      • 2.Qd3#
      • 2.Qxd5#
  • Tries
    • 1.Ra4+?
      • 1...Kxf3
        • 2.Qxd5#
      • 1...Kf5
        • 2.Qd3#
      • 1...d4!
    • 1.Ra5?
      • threat
        • 2.Qxd5#
      • 1...Kxf3
        • 2.Qxd5#
      • 1...Kf5
        • 2.Qd3#
      • 1...d4
        • 2.Qf5#
      • 1...Sf6!
    • 1.Re6+?
      • 1...Kxf3
        • 2.Qxd5#
      • 1...Kf5
        • 2.Qd3#
        • 2.Qxd5#
      • 1...fxe6!
    • 1.Qd3+?
      • 1...Kxf3
        • 2.Qf5#
        • 2.Qxd5#
      • 1...Kxd3!
    • 1.Qb4+?
      • 1...Kd3
        • 2.Se1#
      • 1...Kxf3
        • 2.Qf4#
      • 1...Kf5
        • 2.Qf4#
      • 1...d4!
  • Keys
    • 1.Se1!
      • threat
        • 2.Qd3#
      • 1...Kd4
        • 2.Qb4#
      • 1...Kf5
        • 2.Qxd5#
      • 1...d4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(f);S_FLIGHT,XS(A)::QAB(B),XP(h)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(f);S_FLIGHT,XS(A)::QAB(B),XP(h)
        • K(f);P_SPINP(h),S_FLIGHT::QAB(B)
      • Refutation
        • P(h);P_SPINP(h)
    • Try
      • R(C);
      • Threat
        • QAB1(B),XP(h)
      • Vars
        • K(f);S_FLIGHT,XS(A)::QAB(B),XP(h)
        • K(f);P_SPINP(h),S_FLIGHT::QAB(B)
        • P(h);OGATE::QAB1(B)
      • Refutation
        • S(j);
    • Try
      • R(C);CHECK
      • Vars
        • K(f);S_FLIGHT,XS(A)::QAB(B),XP(h)
      • Refutation
        • P(i);XR(C)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(f);S_FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(f);S_FLIGHT::S(A)
        • K(f);OGATE,S_FLIGHT,XS(A)::QAR1(B)
        • K(f);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • P(h);P_SPINP(h)
  • Actual
    • S(A);
    • Threat
      • QAB1(B)
    • Vars
      • K(f);P-FLIGHT::QAR2(B)
      • K(f);P_SPINP(h),S_FLIGHT::QAR2(B),XP(h)
      • P(h);OGATE::QAR1(B)
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