MESON Chess Problem Database

Problem Display
PID: 35906 (b3K3/3p1p2/6p1/3Qn2p/r2RqR1r/1N1pkpBB/4p3/7N w - - 0 1)

Loshinski, Lev Ilich

Pimenov, Sergey Ivanovich

Umnov, Evgeny Ivanovich

Recomm., BCF 001. Ty., 1929-1930

b3K3/3p1p2/6p1/3Qn2p/r2RqR1r/1N1pkpBB/4p3/7N

#2

8 + 13

5314 Grossmeister Shakhmatnoi Kompozitsii 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd5
      • 2.Bf2#
    • 1...Qf5
      • 2.Bf2#
    • 1...Qxf4
      • 2.Bf2#
    • 1...Ra1
      • 2.Rdxe4#
    • 1...Ra2
      • 2.Rdxe4#
    • 1...Ra3
      • 2.Rdxe4#
    • 1...Ra5
      • 2.Rdxe4#
    • 1...Ra6
      • 2.Rdxe4#
    • 1...Ra7
      • 2.Rdxe4#
    • 1...Rxh3
      • 2.Rfxe4#
    • 1...Rxf4
      • 2.Bf2#
    • 1...Sc4+
      • 2.Rdxe4#
    • 1...Sg4+
      • 2.Rfxe4#
    • 1...Sc6+
      • 2.Qxe4#
  • Keys
    • 1.Be1!
      • threat
        • 2.Bd2#
      • 1...Sc4+
        • 2.Rdxe4#
      • 1...Sg4+
        • 2.Rfxe4#
      • 1...Sc6+
        • 2.Qxe4#
      • 1...Kxf4
        • 2.Bd2#
      • 1...Ra2
        • 2.Rdxe4#
      • 1...d2
        • 2.Bxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • Q(f);XQ(G)::B(C)
    • Q(f);::B(C)
    • Q(f);XR(F)::B(C)
    • R(e);N_GUARD::R1(E),XQ(f)
    • R(g);N_GUARD,XB(D)::R1(F),XQ(f)
    • R(g);SBLOCK,XR(F)::B(C)
    • S(h);CHECK,S_CUTR(e)::R1(E),XQ(f)
    • S(h);CHECK,S_CUTR(g)::R1(F),XQ(f)
    • S(h);CHECK,S_CUTB(m)::QAR1(G),XQ(f)
  • Actual
    • B(C);
    • Threat
      • B(C)
    • Vars
      • S(h);CHECK,S_CUTR(e)::R1(E),XQ(f)
      • S(h);CHECK,S_CUTR(g)::R1(F),XQ(f)
      • S(h);CHECK,S_CUTB(m)::QAR1(G),XQ(f)
      • K(c);P_SPINQ(f),S_FLIGHT,XR(F)::B(C)
      • R(e);N_GUARD::R1(E),XQ(f)
      • P(b);::B(C),XP(b)
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