MESON Chess Problem Database

Problem Display
PID: 235366 (5rr1/p3Q3/K2B3R/1N1PPk1p/R5bp/2p1P2n/3P1p2/3n1N2 w - - 0 1)

Paslack, Rainer

2nd Comm., Schach, 1996

5rr1/p3Q3/K2B3R/1N1PPk1p/R5bp/2p1P2n/3P1p2/3n1N2

#2

11 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Qxf6#
    • 1...Ra8
      • 2.Qf6#
    • 1...Rb8
      • 2.Qf6#
    • 1...Rc8
      • 2.Qf6#
    • 1...Rd8
      • 2.Qf6#
    • 1...Re8
      • 2.Qf6#
    • 1...Rg5
      • 2.Qxf8#
      • 2.Qe6#
      • 2.Qd7#
    • 1...Sxe3
      • 2.Sxe3#
    • 1...Sg1
      • 2.Rf4#
    • 1...Sf4
      • 2.Rxf4#
      • 2.e4#
    • 1...Sg5
      • 2.Rf4#
  • Tries
    • 1.Rxh5+?
      • 1...Kg6
        • 2.Qh7#
      • 1...Rg5
        • 2.Qe6#
        • 2.Qh7#
      • 1...Sg5
        • 2.Qe6#
      • 1...Bxh5!
    • 1.Rf6+?
      • 1...Rxf6
        • 2.Qxf6#
      • 1...Kg5!
    • 1.Qxf8+?
      • 1...Kg5
        • 2.Be7#
        • 2.Qf6#
      • 1...Rxf8!
    • 1.Qh7+?
      • 1...Rg6
        • 2.Qxg6#
      • 1...Kg5!
  • Keys
    • 1.Qxh4!
      • threat
        • 2.Sg3#
      • 1...Be2
        • 2.e4#
      • 1...Bf3
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(j);N_GUARD,P_PINB(I)::QAR1(K),XR(j)
    • R(j);N_GUARD::QAR1(K)
    • S(a);XP(C)::S(A),XS(a)
    • S(d);N_GUARD::R1(D)
  • Tries
    • Try
      • R(J);CHECK,XP(h)
      • Vars
        • K(g);S_FLIGHT::QAB1(K)
        • S(d);P_SPINS(d)::QAB1(K)
      • Refutation
        • B(e);XR(J)
    • Try
      • R(J);CHECK
      • Vars
        • R(j);OGATE,P_PINB(I),XR(J)::QAR1(K),XR(j)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • Q(K);CHECK,XR(j)
      • Refutation
        • R(k);XQ(K)
    • Try
      • Q(K);CHECK
      • Vars
        • R(k);N_GUARD,P_PINB(I),P_SPINR(k)::QAB1(K),XR(k)
      • Refutation
        • K(g);P-FLIGHT
  • Actual
    • Q(K);XP(f)
    • Threat
      • S(A)
    • Vars
      • B(e);P_PINS(E)::P(C)
      • B(e);::S(E)
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