MESON Chess Problem Database

Problem Display
PID: 98672 (2q1Q3/B1n4p/3Pp2K/rN1Np1RB/2Rpk3/2npp3/2rb4/8 w - - 0 1)

Ruszczynski, Piotr

Ve Zjazd Problem., 1976

2q1Q3/B1n4p/3Pp2K/rN1Np1RB/2Rpk3/2npp3/2rb4/8

#2

9 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Rxd4#
      • 2.Qc6#
    • 1...exd5
      • 2.Rxd4#
      • 2.Qxe5#
  • Tries
    • 1.Bxd4?
      • threat
        • 2.Rxe5#
      • 1...Kxd5
        • 2.Qc6#
      • 1...S3xd5
        • 2.Bc3#
      • 1...S7xd5
        • 2.Bc5#
      • 1...exd4
        • 2.Rxd4#
      • 1...exd5
        • 2.Qxe5#
      • 1...e2!
    • 1.Rg4+?
      • 1...Kxd5
        • 2.Rc5#
        • 2.Qc6#
      • 1...Kf5
        • 2.Qf7#
      • 1...Kf3!
    • 1.Qg6+?
      • 1...Kxd5
        • 2.Rc5#
      • 1...hxg6!
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Bf3#
      • 1...Kxd5
        • 2.Qc6#
      • 1...Rxd5
        • 2.Rg4#
      • 1...S3xd5
        • 2.Sxc2#
      • 1...S7xd5
        • 2.Sc6#
      • 1...exd4
        • 2.Rxd4#
      • 1...exd5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(H);XP(f)
      • Threat
        • R1(D),XP(i)
      • Vars
        • K(g);OGATEB,P_SPINP(i),S_FLIGHT,XS(C)::QAB1(I)
        • S(c);SBLOCK,XS(C)::R(A)+B(H)
        • S(k);SBLOCK,XS(C)::R(A)+B(H)
        • P(i);OGATE,P_SPINP(i),XB(H)::R1(A),XP(i)
        • P(j);OGATE,P_SPINP(i),XS(C)::QAR1(I),XP(i)
      • Refutation
        • P(e);P_PINR(D)
    • Try
      • R(D);CHECK
      • Vars
        • K(g);N_SPINP(f),S_FLIGHT::QAR2(I)
      • Refutation
        • K(g);N_SPINP(f),S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(g);N_SPINP(f),P_SPINP(i),S_FLIGHT,XS(C)::R1(A)
      • Refutation
        • P(l);XQ(I)
  • Actual
    • S(B);XP(f)
    • Threat
      • B(E)
    • Vars
      • K(g);OGATEB,P_SPINP(i),S_FLIGHT,XS(C)::QAB1(I)
      • R(h);SBLOCK,XS(C)::R(D)
      • S(c);SBLOCK,XS(C)::R(A)+S(B),XR(a)
      • S(k);SBLOCK,XS(C)::R(A)+S(B)
      • P(i);OGATE,P_SPINP(i),XS(B)::R1(A),XP(i)
      • P(j);OGATE,P_SPINP(i),XS(C)::QAR1(I),XP(i)
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