MESON Chess Problem Database

Problem Display
PID: 39564 (8/8/K7/8/NkNP4/3r4/Q7/8 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Zemlya Balty, 1995

8/8/K7/8/NkNP4/3r4/Q7/8

#2

5 + 2

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Tries
    • 1.Sa5?
      • threat
        • 2.Sc6#
      • 1...Ra3
        • 2.Qc4#
      • 1...Rb3
        • 2.Qxb3#
      • 1...Rc3!
    • 1.Scb6?
      • threat
        • 2.Sd5#
      • 1...Rxd4
        • 2.Qb2#
      • 1...Ra3
        • 2.Qc4#
      • 1...Rb3!
    • 1.Qb2+?
      • 1...Kxa4
        • 2.Sb6#
        • 2.Qb5#
      • 1...Kxc4
        • 2.Sb6#
      • 1...Rb3!
  • Keys
    • 1.Sab6!
      • threat
        • 2.Sd5#
      • 1...Ra3+
        • 2.Qxa3#
      • 1...Kc3
        • 2.Qb2#
      • 1...Rxd4
        • 2.Qa3#
      • 1...Rb3
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • R(a);SBLOCK::QAR1(A)
        • R(a);N_GUARD::QAR1(A),XR(a)
      • Refutation
        • R(a);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • R(a);N_GUARD,XP(D)::QAR2(A)
        • R(a);P_PINS(B),SBLOCK::QAR1(A)
      • Refutation
        • R(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(C)::S(B)
      • Refutation
        • R(a);P_SPINR(a)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • R(a);CHECK,N_GUARD::QAB1(A),XR(a)
      • K(b);S_FLIGHT::QAB1(A)
      • R(a);N_GUARD,XP(D)::QAB1(A)
      • R(a);SBLOCK::QAB1(A)
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