MESON Chess Problem Database

Problem Display
PID: 65260 (4Q1K1/r2r2pp/4Np2/1R4P1/4k1P1/2P2p2/b1P1nP1B/2nR1N2 w - - 0 1)

Bruch, Wieland

1st Prize, Rochade Europa, 1990-1991

4Q1K1/r2r2pp/4Np2/1R4P1/4k1P1/2P2p2/b1P1nP1B/2nR1N2

#2

12 + 10

4827 FIDE Album (1989-1991) 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Sxd2#
    • 1...Rd5
      • 2.Sc5#
    • 1...Rb7
      • 2.Sd2#
    • 1...Rc7
      • 2.Sd2#
    • 1...Re7
      • 2.Sd2#
    • 1...Rf7
      • 2.Sd2#
      • 2.Sc5#
    • 1...Bb1
      • 2.Sc5#
    • 1...Bd5
      • 2.Sd2#
    • 1...Bxe6+
      • 2.Qxe6#
    • 1...Sb3
      • 2.Sc5#
    • 1...Sd3
      • 2.Sd2#
    • 1...Sg1
      • 2.Sg3#
    • 1...Sxc3
      • 2.Sg3#
    • 1...Sg3
      • 2.Sxg3#
    • 1...Sd4
      • 2.Sd2#
      • 2.Sg3#
    • 1...Sf4
      • 2.Sg3#
    • 1...fxg5
      • 2.Re5#
    • 1...f5
      • 2.Re5#
  • Tries
    • 1.Bd6?
      • threat
        • 2.Sd2#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...Sb3
        • 2.Sc5#
      • 1...Rxd6!
    • 1.Rd3?
      • threat
        • 2.Sd2#
        • 2.Re3#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...Sxd3
        • 2.Sd2#
      • 1...Sb3
        • 2.Sc5#
        • 2.Re3#
      • 1...Rxd3!
    • 1.Rd4+?
      • 1...Sxd4
        • 2.Sd2#
        • 2.Sg3#
      • 1...Rxd4!
    • 1.Rdd5?
      • threat
        • 2.Sd2#
      • 1...Rxd5
        • 2.Sc5#
      • 1...Sb3!
    • 1.Rd6?
      • threat
        • 2.Sd2#
      • 1...Bxe6+
        • 2.Rxe6#
        • 2.Qxe6#
      • 1...Sb3
        • 2.Sc5#
      • 1...Rxd6!
    • 1.Rxd7?
      • threat
        • 2.Sd2#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...Sb3
        • 2.Sd4#
        • 2.Sf4#
        • 2.Sc5#
        • 2.Sc7#
        • 2.Sxg7#
        • 2.Sd8#
        • 2.Sf8#
      • 1...Rxd7!
    • 1.Rbd5?
      • threat
        • 2.Sc5#
      • 1...Bxd5
        • 2.Sd2#
      • 1...Sd4
        • 2.R1xd4#
      • 1...Sg3
        • 2.Sxg3#
        • 2.R1d4#
      • 1...Sd3!
    • 1.Qg6+?
      • 1...f5
        • 2.Re5#
        • 2.Qxf5#
      • 1...hxg6!
  • Keys
    • 1.Re1!
      • threat
        • 2.Sg3#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...Rd5
        • 2.Sc5#
      • 1...Bd5
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 13
  • Sets
    • R(h);N_GUARD::S(B),XR(h)
    • R(h);N_PINS(J)::QAR(K)+S(J),DCHECK
    • R(h);N_GUARD::S(B)
    • B(b);N_PINS(J)::QAR(K)+S(J),DCHECK
    • B(b);S_CUTR(h)::S(B)
    • B(b);CHECK,OGATE,P_SPINB(b),XS(J)::QAR2(K),XB(b)
    • S(a);N_PINS(J)::QAR(K)+S(J),DCHECK
    • S(a);S_CUTR(h)::S(B)
    • S(c);N_GUARD::S(B)
    • S(c);N_GUARD,XP(F)::S(B)
    • S(c);N_GUARD::S(B),XS(c)
    • P(f);N_GUARD,XP(I)::R1(H)
    • P(f);N_GUARD::R1(H)
  • Tries
    • Try
      • B(E);
      • Threat
        • S(B)
      • Vars
        • B(b);CHECK,OGATE,P_SPINB(b),XS(J)::QAR2(K),XB(b)
        • S(a);N_PINS(J)::QAR(K)+S(J),DCHECK
      • Refutation
        • R(h);XB(E)
    • Try
      • R(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);CHECK,OGATE,P_SPINB(b),XS(J)::QAR2(K),XB(b)
        • S(a);XR(A)::S(B)
      • Refutation
        • R(h);XR(A)
    • Try
      • R(A);CHECK
      • Refutation
        • R(h);XR(A)
    • Try
      • R(A);N_SPINS(J)
      • Threat
        • S(B)
      • Vars
        • R(h);SBLOCK,XR(A)::QAR(K)+S(J),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(A);
      • Threat
        • S(B)
      • Vars
        • S(a);N_PINS(J)::QAR(K)+S(J),DCHECK
      • Refutation
        • R(h);XR(A)
    • Try
      • R(A);XR(h)
      • Threat
        • S(B)
      • Vars
        • B(b);CHECK,OGATE,P_SPINB(b),XS(J)::QAR2(K),XB(b)
      • Refutation
        • R(g);XR(A)
    • Try
      • R(H);N_SPINS(J)
      • Threat
        • QAR(K)+S(J),DCHECK
      • Vars
        • B(b);P_PINS(J),SBLOCK,XR(H)::S(B)
        • S(c);N_GUARD::R1(A),XS(c)
      • Refutation
        • S(a);
    • Try
      • Q(K);CHECK
      • Refutation
        • P(j);XQ(K)
  • Actual
    • R(A);P_PINS(c)
    • Threat
      • S(B)
    • Vars
      • B(b);CHECK,OGATE,P_SPINB(b),XS(J)::QAR2(K),XB(b)
      • R(h);N_PINS(J),SBLOCK::QAR(K)+S(J),DCHECK
      • B(b);S_CUTR(h)::S(B)
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