MESON Chess Problem Database

Problem Display
PID: 235704 (3r4/1nRpp3/1PpkP3/7R/8/1B1PNN2/1p5K/3Q3n w - - 0 1)

Paslack, Rainer

Pat a Mat, 1991

3r4/1nRpp3/1PpkP3/7R/8/1B1PNN2/1p5K/3Q3n

#2

10 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Rxd7#
    • 1...Rb8
      • 2.Rxd7#
    • 1...Rc8
      • 2.Rxd7#
    • 1...Re8
      • 2.Rxd7#
    • 1...Rf8
      • 2.Rxd7#
    • 1...Rg8
      • 2.Rxd7#
    • 1...Rh8
      • 2.Rxd7#
    • 1...Sc5
      • 2.Sf5#
    • 1...c5
      • 2.Sf5#
    • 1...dxe6
      • 2.Sc4#
  • Tries
    • 1.Re5?
      • threat
        • 2.Sc4#
        • 2.Sf5#
      • 1...dxe6
        • 2.Sc4#
      • 1...Rf8
        • 2.Sc4#
        • 2.Rxd7#
      • 1...Sg3
        • 2.Sc4#
      • 1...Sa5
        • 2.Sf5#
      • 1...Rh8+!
    • 1.Qc2?
      • threat
        • 2.Sf5#
      • 1...dxe6
        • 2.Sc4#
        • 2.Qxc6#
      • 1...Rf8
        • 2.Rxd7#
      • 1...Sg3!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Sf5#
      • 1...dxe6
        • 2.Sc4#
      • 1...Rf8
        • 2.Rxd7#
      • 1...Sf2
        • 2.Qg3#
      • 1...Sg3
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • R(h);N_GUARD::R1(J),XP(f)
    • R(h);N_GUARD,P_PINR(G)::R1(J),XP(f)
    • S(e);SBLOCK::S(E)
    • P(c);::S(E)
    • P(f);SBLOCK,XP(I)::S(E)
  • Tries
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);XP(I)::S(E)
        • S(a);::S(E)
        • S(e);::S(E)
      • Refutation
        • R(h);CHECK
    • Try
      • Q(A);
      • Threat
        • S(E)
      • Vars
        • R(h);N_GUARD::R1(J),XP(f)
      • Refutation
        • S(a);
  • Actual
    • Q(A);
    • Threat
      • S(E)
    • Vars
      • P(f);SBLOCK,XP(I)::S(E)
      • R(h);N_GUARD::R1(J),XP(f)
      • S(a);N_GUARD::QAB(A)
      • S(a);N_GUARD::QAB(A),XS(a)
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