MESON Chess Problem Database

Problem Display
PID: 16302 (8/6bB/8/6Q1/3kr3/8/K1R5/8 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Troll, 2000

8/6bB/8/6Q1/3kr3/8/K1R5/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qd2#
    • 1...Re1
      • 2.Qc5#
    • 1...Re2
      • 2.Qc5#
    • 1...Re3
      • 2.Qc5#
    • 1...Rf4
      • 2.Qc5#
    • 1...Rg4
      • 2.Qc5#
    • 1...Rh4
      • 2.Qc5#
    • 1...Re5
      • 2.Qd2#
    • 1...Re6
      • 2.Qc5#
    • 1...Re7
      • 2.Qc5#
    • 1...Re8
      • 2.Qc5#
    • 1...Be5
      • 2.Qd2#
  • Tries
    • 1.Kb3?
      • threat
        • 2.Rd2#
      • 1...Kd3
        • 2.Rd2#
        • 2.Qd2#
      • 1...Be5
        • 2.Qd2#
      • 1...Re2
        • 2.Rc4#
        • 2.Qc5#
      • 1...Rf4
        • 2.Qc5#
      • 1...Re5
        • 2.Qd2#
      • 1...Re3+!
    • 1.Qd5+?
      • 1...Ke3
        • 2.Qxe4#
      • 1...Kxd5!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qxe4#
      • 1...Kd3
        • 2.Qxe4#
      • 1...Ke3
        • 2.Qxe4#
      • 1...Re1
        • 2.Qc5#
      • 1...Re2
        • 2.Qc5#
      • 1...Re3
        • 2.Qc5#
      • 1...Rf4
        • 2.Qc5#
      • 1...Rg4
        • 2.Qc5#
      • 1...Rh4
        • 2.Qc5#
      • 1...Re5
        • 2.Qd3#
      • 1...Re6
        • 2.Qc5#
      • 1...Re7
        • 2.Qc5#
      • 1...Re8
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT,P_SPINR(b)::QAR1(C)
    • R(b);::QAB1(C)
    • R(b);P_PINR(B)::QAB1(C)
    • R(b);SBLOCK::QAB1(C)
    • R(b);SBLOCK::QAR2(C)
    • B(c);SBLOCK::QAR2(C)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • R(B)
      • Vars
        • B(c);SBLOCK::QAR2(C)
        • R(b);::QAB1(C)
        • R(b);SBLOCK::QAR2(C)
      • Refutation
        • R(b);CHECK
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(C),XR(b)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C),XR(b)
    • Vars
      • K(a);P-FLIGHT,P_SPINR(b)::QAB1(C),XR(b)
      • K(a);S_FLIGHT::QAR1(C),XR(b)
      • R(b);::QAB1(C)
      • R(b);P_PINR(B)::QAB1(C)
      • R(b);SBLOCK::QAB1(C)
      • R(b);OGATE,SBLOCK::QAR1(C)
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