MESON Chess Problem Database

Problem Display
PID: 246427 (2r3Q1/1b2p3/1N4p1/2pp4/R3NpPn/1P2kPp1/2KR1n1B/3B4 w - - 0 1)

Murashev, Pavel Aleksandrovich

Shakhmatnaya Poeziya, 2008

2r3Q1/1b2p3/1N4p1/2pp4/R3NpPn/1P2kPp1/2KR1n1B/3B4

#2

11 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Sxd5#
    • 1...Ba6
      • 2.Sxd5#
    • 1...Sh1
      • 2.Rd3#
    • 1...Sd3
      • 2.Rxd3#
    • 1...Sh3
      • 2.Rd3#
    • 1...Sxg4
      • 2.Rd3#
    • 1...Sxf3
      • 2.Re2#
    • 1...dxe4
      • 2.Sc4#
    • 1...d4
      • 2.Sc4#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Re2#
      • 1...Sxd1
        • 2.Qe6#
      • 1...Ba6
        • 2.Sxd5#
      • 1...c4!
    • 1.Bg1?
      • threat
        • 2.Rd3#
      • 1...dxe4
        • 2.Sc4#
      • 1...Ba6
        • 2.Sxd5#
      • 1...c4!
    • 1.Qxd5?
      • threat
        • 2.Sc4#
      • 1...Bxd5
        • 2.Sxd5#
      • 1...Sxd1
        • 2.Qd3#
      • 1...c4
        • 2.Qd4#
      • 1...Ba6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Sxf2#
      • 1...Sxd1
        • 2.Sg5#
      • 1...Sxe4
        • 2.Bg1#
      • 1...Sxg4
        • 2.Rd3#
      • 1...Sxf3
        • 2.Re2#
      • 1...dxe4
        • 2.Sc4#
      • 1...Rc6
        • 2.Sxd5#
      • 1...Sh1
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sxg3#
        • 2.Sxc5#
        • 2.Sg5#
        • 2.Sd6#
        • 2.Sf6#
        • 2.Rd3#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Sh3
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sxg3#
        • 2.Sxc5#
        • 2.Sg5#
        • 2.Sd6#
        • 2.Sf6#
        • 2.Rd3#
      • 1...d4
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(k);S_CUTB(i)::S(J),XP(g)
    • B(i);N_GUARD::S(J),XP(g)
    • S(a);N_GUARD::R1(C)
    • S(a);N_GUARD::R1(C),XS(a)
    • S(a);N_GUARD,XP(I)::R1(C)
    • S(e);SBLOCK,XP(F)::R1(C)
    • P(g);N_GUARD,XS(H)::S(J)
    • P(g);N_GUARD::S(J)
  • Tries
    • Try
      • S(H);
      • Threat
        • R1(C)
      • Vars
        • S(a);N_GUARD,XB(A)::QAR(K)
        • B(i);N_GUARD::S(J),XP(g)
      • Refutation
        • P(f);
    • Try
      • B(D);P_PINS(a)
      • Threat
        • R1(C)
      • Vars
        • P(g);N_GUARD,XS(H)::S(J)
        • B(i);N_GUARD::S(J),XP(g)
      • Refutation
        • P(f);
    • Try
      • Q(K);XP(g)
      • Threat
        • S(J)
      • Vars
        • B(i);XQ(K)::S(J),XB(i)
        • S(a);N_GUARD,XB(A)::QAR1(K)
        • P(f);N_GUARD::QAB1(K)
      • Refutation
        • B(i);
  • Actual
    • Q(K);
    • Threat
      • QAR(K)+S(H),XS(a)
    • Vars
      • S(a);N_GUARD,XB(A)::QAR(K)+S(H)
      • S(a);OGATEB,P_SPINS(a),XS(H)::B(D)
      • S(a);N_GUARD,XP(I)::R1(C)
      • S(e);SBLOCK,XP(F)::R1(C)
      • P(g);N_GUARD,P_SPINP(g),XS(H)::S(J)
      • R(k);S_CUTB(i)::S(J),XP(g)
      • S(a);N_GUARD::R1(C),XS(a)
      • P(g);N_GUARD::S(J)
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