MESON Chess Problem Database

Problem Display
PID: 162793 (b2rn3/2p1Q1p1/4p3/3pk3/2P1pR2/1N2R1P1/1b5p/1KB5 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2016

b2rn3/2p1Q1p1/4p3/3pk3/2P1pR2/1N2R1P1/1b5p/1KB5

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Qg5#
    • 1...Sd6
      • 2.Qxg7#
  • Tries
    • 1.Rg4?
      • threat
        • 2.Rg5#
      • 1...Kf5
        • 2.Rg5#
        • 2.Qg5#
      • 1...g5
        • 2.Rxg5#
      • 1...Sd6!
    • 1.Qc5?
      • threat
        • 2.Bxb2#
        • 2.Rexe4#
      • 1...Bxc1
        • 2.Rexe4#
      • 1...h1B
        • 2.Bxb2#
      • 1...h1R
        • 2.Rexe4#
      • 1...Ba1
        • 2.Rexe4#
      • 1...Ba3
        • 2.Rexe4#
      • 1...Bc3
        • 2.Rexe4#
      • 1...Bd4
        • 2.Rexe4#
      • 1...Sd6
        • 2.Bxb2#
      • 1...Sf6
        • 2.Bxb2#
      • 1...h1Q!
    • 1.c5?
      • threat
        • 2.Qg5#
      • 1...Sd6
        • 2.Qxg7#
      • 1...g5
        • 2.Qxg5#
      • 1...Sf6!
  • Keys
    • 1.cxd5!
      • threat
        • 2.Qxe6#
      • 1...Kxd5
        • 2.Qc5#
      • 1...Rxd5
        • 2.Rexe4#
      • 1...Bxd5
        • 2.Bxb2#
      • 1...Rd6
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(j);SBLOCK::QAR2(H)
    • S(k);N_GUARD,SBLOCK::QAB(H),XP(h)
  • Tries
    • Try
      • R(G);
      • Threat
        • R(G)
      • Vars
        • P(h);::R(G),XP(h)
      • Refutation
        • S(k);
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XB(B)::R1(D),XP(c)
        • P(b);::B(B),XB(a)
        • P(b);P_PINB(B)::R1(D),XP(c)
        • B(a);::R1(D),XP(c)
        • S(k);::B(B),XB(a)
      • Refutation
        • P(b);P_PINB(B)
    • Try
      • P(F);
      • Threat
        • QAR2(H)
      • Vars
        • S(k);N_GUARD::QAB(H),XP(h)
        • P(h);::QAR2(H),XP(h)
      • Refutation
        • S(k);
  • Actual
    • P(F);XP(d)
    • Threat
      • QAR1(H),XP(f)
    • Vars
      • K(e);N_SPINP(c),OGATEB,P-FLIGHT,XP(F)::QAR1(H)
      • R(j);SBLOCK,XP(F)::R1(D),XP(c)
      • B(i);SBLOCK,XP(F)::B(B),XB(a)
      • R(j);SBLOCK::QAR2(H)
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