MESON Chess Problem Database

Problem Display
PID: 110098 (7B/3p4/2pp4/3k4/4N1K1/8/4B3/4Q3 w - - 0 1)

Kisis, Imants J

Sachove umeni (Ceskoslovensky sach), 1987

7B/3p4/2pp4/3k4/4N1K1/8/4B3/4Q3

#2

5 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Bc4#
  • Tries
    • 1.Sd2?
      • 1...Ke6
        • 2.Bc4#
      • 1...c5
        • 2.Bf3#
      • 1...Kc5!
    • 1.Sf2?
      • 1...Kc5
        • 2.Qa5#
      • 1...Ke6
        • 2.Bc4#
      • 1...c5!
    • 1.Sc3+?
      • 1...Ke6
        • 2.Bc4#
      • 1...Kc5!
    • 1.Sg3?
      • 1...Kc5
        • 2.Qa5#
      • 1...Ke6
        • 2.Bc4#
      • 1...c5!
    • 1.Sc5?
      • 1...Kxc5
        • 2.Qa5#
      • 1...dxc5!
    • 1.Bf3?
      • 1...Ke6
        • 2.Sg5#
      • 1...c5
        • 2.Sd2#
      • 1...Kc4!
    • 1.Qd2+?
      • 1...Kxe4
        • 2.Bf3#
        • 2.Qd3#
        • 2.Qd4#
      • 1...Ke6!
    • 1.Qd1+?
      • 1...Kxe4
        • 2.Qd3#
        • 2.Qd4#
      • 1...Ke6!
    • 1.Qh1?
      • 1...c5
        • 2.Sg5#
      • 1...Ke6!
  • Keys
    • 1.Sg5!
      • 1...Kc5
        • 2.Qa5#
      • 1...c5
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT,XS(C)::QAR(A)+B(B)
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR(A)+B(B),DCHECK
        • P(b);SBLOCK::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
        • K(a);S_FLIGHT::QAR(A)+B(B),DCHECK
      • Refutation
        • P(b);
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR(A)+B(B),DCHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
        • K(a);S_FLIGHT::QAR(A)+B(B),DCHECK
      • Refutation
        • P(b);
    • Try
      • S(C);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(A)
      • Refutation
        • P(c);XS(C)
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::QAR(A)+S(C),DCHECK
        • P(b);SBLOCK::B(B)+S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);SBLOCK::QAB(A)+S(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
      • P(b);SBLOCK::QAB(A)
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