MESON Chess Problem Database

Problem Display
PID: 239923 (2b5/3P1B2/1Kp3p1/p7/N2pp1PQ/1p1kBPp1/1RN1p3/8 w - - 0 1)

Erokhin, Vladimir Alekseevich

Sinfonie Scacchistiche, 1989

2b5/3P1B2/1Kp3p1/p7/N2pp1PQ/1p1kBPp1/1RN1p3/8

#2

10 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...bxc2
      • 2.Rb3#
  • Tries
    • 1.Kc5?
      • threat
        • 2.Bc4#
      • 1...bxc2
        • 2.Rb3#
      • 1...dxe3
        • 2.Se1#
      • 1...exf3
        • 2.Bxg6#
      • 1...Ba6!
    • 1.Bc1?
      • threat
        • 2.Se1#
      • 1...bxc2
        • 2.Rb3#
      • 1...e1Q
        • 2.Sxe1#
      • 1...e1S
        • 2.Sxe1#
      • 1...e1B
        • 2.Sxe1#
      • 1...e1R
        • 2.Sxe1#
      • 1...exf3!
    • 1.Bf4?
      • threat
        • 2.Se1#
      • 1...bxc2
        • 2.Rb3#
      • 1...e1Q
        • 2.Sxe1#
      • 1...e1S
        • 2.Sxe1#
      • 1...e1B
        • 2.Sxe1#
      • 1...e1R
        • 2.Sxe1#
      • 1...exf3!
    • 1.Bg5?
      • threat
        • 2.Se1#
      • 1...bxc2
        • 2.Rb3#
      • 1...e1Q
        • 2.Sxe1#
      • 1...e1S
        • 2.Sxe1#
      • 1...e1B
        • 2.Sxe1#
      • 1...e1R
        • 2.Sxe1#
      • 1...exf3!
    • 1.Qh6?
      • threat
        • 2.Se1#
      • 1...bxc2
        • 2.Rb3#
      • 1...dxe3
        • 2.Qxe3#
      • 1...exf3
        • 2.Qxg6#
      • 1...e1Q
        • 2.Sxe1#
      • 1...e1S
        • 2.Sxe1#
      • 1...e1B
        • 2.Sxe1#
      • 1...e1R
        • 2.Sxe1#
      • 1...g5!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Se1#
      • 1...bxc2
        • 2.Rb3#
      • 1...dxe3
        • 2.Qxe3#
      • 1...exf3
        • 2.Qxg6#
      • 1...e1Q
        • 2.Sxe1#
      • 1...e1S
        • 2.Sxe1#
      • 1...e1B
        • 2.Sxe1#
      • 1...e1R
        • 2.Sxe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK,XS(B)::R(A)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Threat
        • B(J)
      • Vars
        • P(b);SBLOCK,XS(B)::R(A)
        • P(e);SBLOCK,XB(C)::S(B)
        • P(f);OGATEB,XP(D)::B(J),XP(i)
      • Refutation
        • B(j);
    • Try
      • B(C);
      • Threat
        • S(B)
      • Vars
        • P(b);SBLOCK,XS(B)::R(A)
        • P(a);::S(B),XQ(a)
        • P(a);::S(B),XS(a)
        • P(a);::S(B),XB(a)
        • P(a);::S(B),XR(a)
      • Refutation
        • P(f);XP(D)
    • Try
      • B(C);
      • Threat
        • S(B)
      • Vars
        • P(b);SBLOCK,XS(B)::R(A)
        • P(a);::S(B),XQ(a)
        • P(a);::S(B),XS(a)
        • P(a);::S(B),XB(a)
        • P(a);::S(B),XR(a)
      • Refutation
        • P(f);XP(D)
    • Try
      • B(C);
      • Threat
        • S(B)
      • Vars
        • P(b);SBLOCK,XS(B)::R(A)
        • P(a);::S(B),XQ(a)
        • P(a);::S(B),XS(a)
        • P(a);::S(B),XB(a)
        • P(a);::S(B),XR(a)
      • Refutation
        • P(f);XP(D)
    • Try
      • Q(G);
      • Threat
        • S(B)
      • Vars
        • P(b);SBLOCK,XS(B)::R(A)
        • P(e);OGATE,XB(C)::QAR1(G),XP(e)
        • P(f);OGATEB,XP(D)::QAB(G),XP(i)
        • P(a);::S(B),XQ(a)
        • P(a);::S(B),XS(a)
        • P(a);::S(B),XB(a)
        • P(a);::S(B),XR(a)
      • Refutation
        • P(i);
  • Actual
    • Q(G);
    • Threat
      • S(B)
    • Vars
      • P(b);SBLOCK,XS(B)::R(A)
      • P(e);OGATE,XB(C)::QAR1(G),XP(e)
      • P(f);OGATEB,XP(D)::QAB(G),XP(i)
      • P(a);::S(B),XQ(a)
      • P(a);::S(B),XS(a)
      • P(a);::S(B),XB(a)
      • P(a);::S(B),XR(a)
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Developed and maintained by Brian Stephenson.
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