MESON Chess Problem Database

Problem Display
PID: 44709 (1b6/2rp4/1p3N2/1p4RK/1pk2B2/5Q2/8/8 w - - 0 1)

Kisis, Imants J

Die Schwalbe, 1991

1b6/2rp4/1p3N2/1p4RK/1pk2B2/5Q2/8/8

#2

5 + 7

4827 FIDE Album (1989-1991) 1997

SOLUTION

  • SOUND
  • Tries
    • 1.Bd2?
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qe4#
        • 2.Qd5#
      • 1...d5
        • 2.Qxd5#
      • 1...Rc5!
    • 1.Bd6?
      • threat
        • 2.Rg4#
      • 1...Kd4
        • 2.Rg4#
      • 1...Rc5!
    • 1.Rg3?
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qd5#
      • 1...Kc5
        • 2.Qd5#
      • 1...b3
        • 2.Qc3#
      • 1...d5
        • 2.Qxd5#
      • 1...Rc5+!
    • 1.Rg4?
      • threat
        • 2.Bd6#
      • 1...Rc5+
        • 2.Be5#
      • 1...Kd4
        • 2.Bd6#
      • 1...Kc5
        • 2.Qd5#
      • 1...d6
        • 2.Bxd6#
      • 1...d5!
    • 1.Qb3+?
      • 1...Kd4
        • 2.Be3#
        • 2.Rd5#
      • 1...Kxb3!
  • Keys
    • 1.Be5!
      • threat
        • 2.Qd5#
      • 1...Kc5
        • 2.Qd5#
      • 1...b3
        • 2.Qc3#
      • 1...Rc5
        • 2.Rg4#
      • 1...d5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Threat
        • QAB1(A)
      • Vars
        • P(f);::QAB1(A),XP(f)
      • Refutation
        • R(e);P_PINR(C)
    • Try
      • B(B);
      • Threat
        • R(C)
      • Vars
        • K(b);P-FLIGHT::R(C)
      • Refutation
        • R(e);P_PINR(C)
    • Try
      • R(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • P(a);N_GUARD::QAR1(A)
        • P(f);::QAB1(A),XP(f)
      • Refutation
        • R(e);CHECK
    • Try
      • R(C);
      • Threat
        • R(C)+B(B)
      • Vars
        • R(e);CHECK,SBLOCK::R(C)+B(B)
        • K(b);P-FLIGHT::R(C)+B(B)
        • K(b);P-FLIGHT::QAR1(A)
        • P(f);::R(C)+B(B),XP(f)
      • Refutation
        • P(f);
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
  • Actual
    • B(B);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);P-FLIGHT::QAR1(A)
      • P(a);N_GUARD::QAR1(A)
      • R(e);SBLOCK::R(C)
      • P(f);::QAB1(A),XP(f)
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