MESON Chess Problem Database

Problem Display
PID: 37658 (K3N1B1/1N2B3/1b3p1r/R2q3r/2kp2bQ/p5R1/Pn1P4/8 w - - 0 1)

Pochtarev, Konstantin Grigorevich

Rossomakho, Yakov V

1st Prize, Nabokov MT, 1994

K3N1B1/1N2B3/1b3p1r/R2q3r/2kp2bQ/p5R1/Pn1P4/8

#2

10 + 10

3705 Album Russia (1992-1994) 2000
3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh4
      • 2.Bxd5#
    • 1...Bd1
      • 2.Rc3#
    • 1...Be2
      • 2.Rc3#
    • 1...Bh3
      • 2.Rc3#
    • 1...Bf5
      • 2.Bxd5#
      • 2.Rc3#
    • 1...Be6
      • 2.Rc3#
    • 1...Bd7
      • 2.Rc3#
    • 1...Bc8
      • 2.Rc3#
    • 1...f5
      • 2.Bxd5#
  • Keys
    • 1.Rb3!
      • threat
        • 2.Sd6#
      • 1...Qxg8
        • 2.Sd6#
      • 1...d3
        • 2.Rb4#
      • 1...Be6
        • 2.Rc3#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Bc7
        • 2.Rc5#
      • 1...f5
        • 2.Bxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(g);N_GUARD,XQ(D)::B(J),XQ(f)
    • B(e);P_SPINP(d)::R1(C)
    • B(e);N_SPINQ(f),P_SPINP(d)::R1(C)
    • P(i);S_CUTR(g)::B(J),XQ(f)
  • Actual
    • R(C);
    • Threat
      • S(I)
    • Vars
      • Q(f);N_PINS(F),N_SPINQ(f),P_PINS(I),XB(J)::S(F)
      • P(d);P_SPINB(e),SBLOCK::R1(C)
      • B(e);N_SPINQ(f),P_SPINP(d)::R1(C)
      • B(h);N_GUARD::R1(E),XB(h)
      • B(h);N_GUARD::R1(E)
      • P(i);S_CUTR(g)::B(J),XQ(f)
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