MESON Chess Problem Database

Problem Display
PID: 63914 (4K3/p7/2R1pPn1/2p2k1B/r1P1NBpP/4Q3/6N1/1b5n w - - 0 1)

Pavlov, Mikhail Aleksandrovich

Schach, 1979

4K3/p7/2R1pPn1/2p2k1B/r1P1NBpP/4Q3/6N1/1b5n

#2

10 + 9

3750 FIDE Album (1977-1979) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf4
      • 2.Qxf4#
    • 1...Sxh4
      • 2.Sxh4#
  • Tries
    • 1.Sg3+?
      • 1...Sxg3
        • 2.Qxe6#
      • 1...Kxf6!
    • 1.Rxc5+?
      • 1...Se5
        • 2.Rxe5#
      • 1...e5!
    • 1.Rxe6?
      • threat
        • 2.Sd6#
      • 1...Kxe6
        • 2.Bxg4#
      • 1...Bxe4
        • 2.Qxe4#
      • 1...Se5
        • 2.Rxe5#
      • 1...Ra6!
  • Keys
    • 1.Be5!
      • threat
        • 2.Sd6#
      • 1...Kxe5
        • 2.Rxc5#
      • 1...Bxe4
        • 2.Qg5#
      • 1...Sxe5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(h);OGATE,XB(E)::QAR1(B),XS(h)
    • S(h);XP(F)::S(A),XS(h)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • S(b);XS(D)::QAB1(B),XP(g)
      • Refutation
        • K(f);P-FLIGHT,P_SPINP(g),XP(I)
    • Try
      • R(H);CHECK,XP(e)
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::R1(H),XS(h)
      • Refutation
        • P(g);P_SPINP(g)
    • Try
      • R(H);XP(g)
      • Threat
        • S(D)
      • Vars
        • K(f);S_FLIGHT,XR(H)::B(G),XP(d)
        • B(a);OGATE,XS(D)::QAB1(B),XB(a)
        • S(h);N_GUARD::R1(H),XS(h)
      • Refutation
        • R(c);
  • Actual
    • B(E);
    • Threat
      • S(D)
    • Vars
      • K(f);OGATEB,P-FLIGHT,XB(E)::R(H),XP(e)
      • B(a);SBLOCK,XS(D)::QAR1(B)
      • S(h);N_GUARD,XB(E)::QAR1(B)
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