MESON Chess Problem Database

Problem Display
PID: 46119 (8/6K1/8/1ppp4/1Nkpp3/1R6/2P1r1Q1/2N2BB1 w - - 0 1)

Pavlov, Mikhail Aleksandrovich

2nd HM., Visserman MT, 1980

8/6K1/8/1ppp4/1Nkpp3/1R6/2P1r1Q1/2N2BB1

#2

8 + 7

3752 FIDE Album (1980-1982) 1988
56 The Problemist 2002

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Qxd5#
  • Tries
    • 1.Sca2?
      • 1...d3
        • 2.Rc3#
      • 1...e3
        • 2.Qxd5#
      • 1...cxb4!
    • 1.Qxe4?
      • threat
        • 2.Bxe2#
        • 2.Qd3#
        • 2.Qxd5#
      • 1...cxb4
        • 2.Qxd4#
      • 1...dxe4!
    • 1.Qf2?
      • 1...cxb4
        • 2.Qxd4#
      • 1...d3
        • 2.Qxc5#
      • 1...e3!
    • 1.Qg6?
      • 1...cxb4
        • 2.Qc6#
      • 1...e3
        • 2.Qd3#
      • 1...d3!
  • Keys
    • 1.Qg4!
      • 1...cxb4
        • 2.Qc8#
      • 1...d3
        • 2.cxd3#
      • 1...e3
        • 2.Bxe2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATE::QAB1(E),XP(g)
  • Tries
    • Try
      • S(A);
      • Vars
        • P(c);N_GUARD,N_SPINR(a)::R1(F)
        • P(d);OGATE::QAB1(E),XP(g)
      • Refutation
        • P(f);XS(G)
    • Try
      • Q(E);P_PINP(c),XP(d)
      • Threat
        • DUALS(3)
      • Vars
        • P(f);N_GUARD,XS(G)::QAR1(E),XP(c)
      • Refutation
        • P(g);N_SPINP(c),XQ(E)
    • Try
      • Q(E);
      • Vars
        • P(f);N_GUARD,XS(G)::QAR1(E),XP(c)
        • P(c);N_SPINR(a),OGATE::QAR1(E),XP(f)
      • Refutation
        • P(d);
    • Try
      • Q(E);
      • Vars
        • P(f);OGATEB,XS(G)::QAR2(E)
        • P(d);OGATE::QAB1(E)
      • Refutation
        • P(c);N_SPINR(a)
  • Actual
    • Q(E);
    • Vars
      • P(f);OGATEB,XS(G)::QAR(E)
      • P(c);N_SPINR(a),OGATE,P_SPINP(d)::P(D),XP(c)
      • P(d);P_SPINP(c)::B(B),XR(a)
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