MESON Chess Problem Database

Problem Display
PID: 153452 (4r3/1p1R1R1n/2r1k1pn/1pP1P3/1K2p3/2B1Q3/8/7B w - - 0 1)

Barth, Michael

3rd HM., Wola Gulowska, 1995

4r3/1p1R1R1n/2r1k1pn/1pP1P3/1K2p3/2B1Q3/8/7B

#2

8 + 9

15345 Wola Gulowska Award 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf7
      • 2.Qh3#
    • 1...Sg8
      • 2.Qh3#
  • Tries
    • 1.Rde7+?
      • 1...Kd5
        • 2.Bxe4#
        • 2.Qd2#
        • 2.Qd4#
        • 2.Qd3#
        • 2.Qxe4#
      • 1...Rxe7!
    • 1.Qd2?
      • threat
        • 2.Qa2#
        • 2.Qd5#
      • 1...Rxc5
        • 2.Qd6#
      • 1...Re7
        • 2.Rdxe7#
        • 2.Qd5#
      • 1...Sf6
        • 2.Rxf6#
      • 1...Ra6
        • 2.Qd5#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Ra8
        • 2.Rde7#
        • 2.Qd5#
      • 1...Sxf7!
    • 1.Qf2?
      • threat
        • 2.Qa2#
      • 1...Rxc5
        • 2.Rd6#
      • 1...Sxf7
        • 2.Qxf7#
      • 1...Rd6
        • 2.Rxd6#
      • 1...Re7
        • 2.Rfxe7#
      • 1...Ra8
        • 2.Rfe7#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Ra6!
    • 1.Qd4?
      • threat
        • 2.Qd5#
      • 1...Rxc5
        • 2.Qd6#
      • 1...Sf6
        • 2.Rxf6#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Sxf7!
    • 1.Qh3+?
      • 1...Sg4
        • 2.Qxg4#
      • 1...Sf5!
    • 1.Qxe4?
      • threat
        • 2.Qd5#
      • 1...Sxf7
        • 2.Qg4#
      • 1...Rd6
        • 2.exd6#
      • 1...Sf6
        • 2.exf6#
      • 1...Rxc5!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qd5#
      • 1...Rxc5
        • 2.Qd6#
      • 1...Sxf7
        • 2.Qh3#
      • 1...exd3
        • 2.Bd5#
      • 1...Sf6
        • 2.Rxf6#
      • 1...Rd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(f);N_GUARD,XR(H)::QAB(C)
    • S(f);N_GUARD::QAB(C)
  • Tries
    • Try
      • R(G);CHECK
      • Refutation
        • R(i);XR(G)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);N_GUARD,XP(E)::QAR1(C)
        • S(h);N_GUARD::R1(H),XS(h)
        • R(c);::QAB1(C)
        • R(c);N_GUARD::QAR1(C),XR(c)
      • Refutation
        • S(f);XR(H)
    • Try
      • Q(C);
      • Threat
        • QAB(C)
      • Vars
        • R(c);N_GUARD,XP(E)::R1(G)
        • S(f);OGATE,XR(H)::QAB1(C),XS(f)
        • R(c);N_GUARD::R1(G),XR(c)
        • R(i);N_GUARD::R1(H),XR(i)
        • R(i);N_GUARD::R1(H)
        • S(h);N_GUARD::QAR1(C),XS(h)
      • Refutation
        • R(c);
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • R(c);N_GUARD,XP(E)::QAR1(C)
        • S(h);N_GUARD::R1(H),XS(h)
        • R(c);N_GUARD::QAR1(C),XR(c)
      • Refutation
        • S(f);XR(H)
    • Try
      • Q(C);CHECK
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::QAB(C),XS(f)
      • Refutation
        • S(f);P_SPINS(f)
    • Try
      • Q(C);XP(a)
      • Threat
        • QAB1(C)
      • Vars
        • S(f);N_GUARD,XR(H)::QAB(C)
        • R(c);OGATE::QAR(C)+P(F),XR(c)
        • S(h);OGATE::QAR(C)+P(F),XS(h)
      • Refutation
        • R(c);XP(E)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • R(c);N_GUARD,XP(E)::QAR1(C)
      • S(f);N_GUARD,XR(H)::QAB(C)
      • P(a);OGATE,XQ(C)::B(A)
      • S(h);N_GUARD::R1(H),XS(h)
      • R(c);N_GUARD::QAR1(C),XR(c)
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